Home

Chapter 4 - Connectors

1. Table 4 10 Reset Connector Sleep Resume Connector 1716 4 121110 876 4 21 o 000 so oo om OM03941 Pin Signal Name 1 5V 2 Comatose Table 4 11 Sleep Resume Connector page 61 Infra red Connector 1716 14 121110 876 4 21 OO 0 000 CO O OM03942 Pin Signal Name 4 5 V 5 Key 6 IR_RX 4 Ground 8 IR TX Table 4 12 Infra red Connector page 62 12 Volt Fan Power Connector Fra 1716 14 121110 876 4 21 OO O XI O00 Cl OM03943 Pin Signal Name 10 Ground 11 12 V fused 12 Ground Table 4 13 12V Fan Connector page 63 Speaker Connector page 64 rn 1716 4 121110 876 4 21 CM OOO O00 oO D OM03944 Pin Signal Name 14 SPKR_DAT 15 Key 16 SPKR_DAT con nect 17 Ground Table 4 14 Speaker Connector ISA Connector 1 1gnal Name EN SIS N B SIND j B2 RSTDRV B3 Vcc B4 IRQ9 B5 5 V B6 DRQ2 B7 12V B8 OWS B9 12 V B10 GND Bll SMEMW
2. SIMMs are described in greater detail in Chapter 3 page 12 OM04034 Figure 2 3 SIMM Installation page 13 System Board Components ABCDEFG H I J K O O O X FU SEER j L 0 w O D 3 M V N O O U T RQP O OM03815 Figure 2 4 System Board Components 3 3 V power connector Primary power connector Serial port COM2 Serial port COMI Floppy drive connector Two IDE connectors Parallel port connector ZO sm OO w gt Super I O controller me Triton system controller Triton data path components SIMM sockets CPU voltage regulator zrn Secondary cache sockets page 14 OB Zu Gu 2 M lt au Secondary cache size jumpers Pentium microprocessor Configuration switch block PCI ISA IDE accelerator Front panel
3. Peripheral Configuration Advanced Chipset Configu ration Power Management Config uration Plug and Play Configuration Description For setting up and modifying some of the basic options ofa PC such as time date diskette drives hard drives For modifying the advanced features of aPC such as peripher als and advanced chipset configuration For specifying passwords that limit access to the system For saving or discarding changes Table 2 6 Setup Menu Screens Description For configuring your diskette drives For configuring your hard drives For modifying options that affect the system boot up such as the boot sequence For modifying options that affect the serial ports the parallel port and the disk drive interfaces For modifying options that affect memory and system busses For accessing and modifying Advanced Power Management APM options For modifying options that affect the system s Plug and Play ca pabilities Table 2 7 Setup Subscreen Menus Overview of the Setup Keys The following keys have special functions in the Setup program Setup Key lt Fl gt lt Esc gt lt Enter gt lt T gt lt gt lt gt lt gt lt F5 gt lt F6 gt lt F10 gt page 20 Description Pressing the lt F1 gt key brings up a help screen for the current item Pressing the lt Esc gt key takes you back to the previous screen Pressing lt Esc gt in the Main Advanced Security or
4. B12 SMEMR B13 IOW B14 IOR B15 DACK3 B16 DRQ3 B17 DACKI B18 DRQI REFRESH gt gt gt 12 gt gt 1 gt gt gt gt gt A CRIS NN ISA Connector continued 1 1 1 1 D9 C9 MEMR D10 DACKS C10 MEMW D11 DRQ5 Cll SD8 D12 DACK6 C12 SD9 D13 DRQ6 C13 SD10 D14 DACKT C14 SD11 D15 DRQ7 C15 SD12 D16 Vcc C16 SD13 D17 Master C17 SD14 D18 GND C18 SD15 page 65 Table 4 15 ISA Connector Continued PCI Connector 19 19 PT Sn Signa Name Name Name Name Al GND B IZ V A32 ADI6 B ADI7 A2 12 V B2 No Con A33 33V B33 CBE2 nect A3 No Connect B3 GND A34 FRAME B34 GND A4 No Connect B4 No Con A35 GND B35 IRDY nect AS Vcc B5 Vcc A36 TRDY B36 33V A6 PCIINT3 B6 Vcc A37 GND B37 DEVSEL A7 PCIINT1 B7 PCIINT2 A38 STOP B38 GND A8 Vcc B8 PCIINT4 A39 33V B39 PLOCK A9 Reserved B9 No Con A40 SDONE B40 PERR nect A10 Vec B10 Reserved A41 SBO B41 33V All Reserved Bll No Con A42 GND B42 SERR nect A12 GND B12 GND A43 PAR B43 3 3 V A13 GND B13 GND A44 AD15 B44 CBEI Al4 Reserved B14 Reserved A45 33V B45 AD14 A15 SPCIRST B15 GND A46 AD13 B46 GND Al6 Vcc B16 PCLKE A47 ADII B47 AD12 A17 AGNT B17 GND A48 GND B48 AD10 A18 GND B18 REQA A49 AD9 B49 GND A19 Reserved B19 Vcc A50 KEY B50 KEY A20 AD30 B20 AD31 A51 KEY B51 KEY A21 33V B21 AD29 A CBEO B52 AD8 A22 AD28 B22 GND A53 3 3 V
5. Figure 4 1 Main Connectors page 50 Parallel Connector 2 1 25 OM03932 Pin Signal Name Pin Signal Name 1 Strobe 14 Ground 2 Auto Feed 15 Data Bit 6 3 Data Bit 0 16 Ground 4 ERROR 17 Data Bit 7 5 Data Bit 1 18 Ground 6 INIT 19 ACK T Data Bit 2 20 Ground 8 SLCT IN 21 BUSY 9 Data Bit 3 22 Ground 10 Ground 23 PE Paper End 11 Data Bit 4 24 Ground 12 Ground 25 SLCT 13 Data Bit 5 26 NC page 51 Table 4 1 Parallel Connector Serial Connectors page 52 OM03931 Pin Signal Name 1 DCD 2 DSR 3 Serial In 4 RTS 5 Serial Out 6 CTS 7 DTR 8 RI 9 GND 10 NC Table 4 2 Serial Connectors Primary Power Connector page 53 OM04114 Pin Signal Name 1 PWRGD 2 5 V 3 12 V 4 12V 5 GND 6 GND 7 GND 8 GND 9 5V 10 5 V 11 5 V 12 5 V Table 4 3 Primary Power Connector 3 3 V PCI Power Connector my 123456 HOOOOO L OM03933 gt Note This connector provides 3 3 V power only to the PCI bus connectors The 3 3 V p
6. You can also reset the system by shutting system power off and then powering back up To do this Press and release the front panel power control button Moving the rear panel power enable switch to the 0 position will also power down the system 1 Wait at least 20 seconds 2 Press and release the front panel power control button If you moved the power enable switch at the back of the system to 0 you must move it back to the 1 position before pressing the front power con trol switch 3 The system powerd up and immediately begind the power on self test POST Resetting the system will e Clear the system memory e Restart the power on self test POST e Reinitialize all peripherals Load the operating system System Security System security is provided by password options enabled through the Setup program see Chapter 2 Keyboard Mouse Controller The onboard I O controller mentioned earlier in this chapter stores the keyboard and mouse controller code PS 2 style connectors for keyboard and mouse are located at the back panel The controller supports using keyboard short cuts to reset the system and to toggle between fast and slow CPU speed See Chapter 2 for specific keyboard shortcuts Battery A battery on the system board provides power backup for the real time clock and CMOS RAM You can set the time for the clock and the CMOS values by using the system BIOS Setup program described in Chap
7. e One combination slot for one PCI or ISA board e Support for advanced power management APM e Two 9 pin headers for 2 serial COM ports e One 25 pin header for multimode Centronics compatible parallel port e One 33 pin header for floppy diskette drive can be as large as 2 88 MB e Backup battery for the CMOS RAM and real time clock e PS 2 style keyboard and mouse connectors e One 6 pin connector for 3 3V source for PCI slots Safety Compliance This equipment was designed to meet or exceed requirements for safety in the US UL 1950 Canada CSA 950 Europe EN60950 and international IEC 950 A Dear Customer Letter ships with this product while certification is pending System Environment MANY OF THE CONNECTORS ON THE BASEBOARD PROVIDE POWER FOR PERIPHERAL DEVICES THROUGH DIFFERENT PINS MAKING INCORRECT CONNECTIONS CAN DAMAGE THE BASEBOARD AND MAY DAMAGE THE DE VICE BEING CONNECTED USE EXTREME CAUTION WHEN PREPARING TO CONNECT CABLES TO THIS PRODUCT RE FER TO CHAPTER 4 FOR CONNECTOR LOCATIONS AND PINOUT INFORMATION Specifications Tables 1 1 through 1 3 define environmental electrical and physical specifications of the baseboard page 2 Characteristic Value Temperature operating 10 C to 35 C derated 2 C per 1 000 feet 300 meters over 10 000 feet 3 000 meters 2 C per minute maximum excursion gradient storage 40 to 70 C 5 C per minute maximum excursion gradient Humidity operating 5
8. in computer systems Personal Computer Memory Card International Association PCMCIA The group of computer hardware de signers responsible for development of standards for use and application of flash memory cards in computer systems Personal System 2 PS 2 Computers designed with IBM s proprietary bus architecture known as Micro Channel Phase Locked Loop PLL A semiconductor device which functions as an electronic feedback control system to maintain a closely regulated output frequency from an unregulated input frequency The typical PLL consists of an internal phase comparator or detector a low pass filter and a voltage controlled oscillator which func tion together to capture and lock onto an input frequency When locked onto the input frequency the PLL can maintain a stable regulated output frequency within bounds despite frequency variance at the input Physical Address The address or location in memory where data is stored before it is moved as memory remapping occurs The physical address is that which appears on the computer s address bus when the CPU requests data from a memory address When remapping occurs the data can be moved to a different memory location or logical address Pinout A diagram or table describing the location and function of pins on an electrical connector Plastic Quad Flat Pack PQFP A popular package design for integrated circuits of high complexity Power On Self Test POST A diagnostic
9. to 85 non condensing 55 C storage 5 to 92 non condensing 55 C Altitude operating 0 to 10 000 feet 3 048 meters storage 0 to 50 000 feet 15 200 meters Vibration operating 0 015 inch 0 38 mm P P displacement with 2 5 g peak maximum acceleration over 5 to 2000 Hz storage 0 030 inch 0 76 mm P P displacement with 5 0 g peak maximum acceleration over 5 to 2000 Hz operating 30 g 11 ms duration half sine shock pulse storage 50 g 11 ms duration half sine shock pulse Table 1 1 Environmental Specifications Table 1 2 shows the voltage and current specifications for a system at the DOS prompt configured with the mother board and the following components a 100 MHz Pentium Processor w heat sink and fan PCI video 8 MB EDO 60ns DRAM 256 KB L2 cache 3 5 inch floppy drive and 540 MB hard drive Advanced Power Management is not en abled This information is provided only as a guide for calculating approximate total system power usage with addi tional resources added NOTE The 3 3V power from the Baby AT power supply is used only to power PCI slots in the current configu rations Therefore 3 3V does not show up in the following tables Characteristic Value Electrical Current 5 VDC 3260 mA typical WDE 89 mA typical 12 VDC 30 mA typical Table 1 2 Electrical Specifications page 3 Physical Measurements Table 1 3 shows physical specifications of the base
10. B53 AD7 A23 AD26 B23 ADZ7 A54 AD6 B54 3 3 V A24 GND B24 ADZ5 A55 AD4 B55 ADS A25 AD24 B25 33V A56 GND B56 AD3 A26 AD22 ID B26 CBE3 A57 AD2 B57 GND SEL A27 33V B27 AD23 AS58 ADO B58 ADI A28 AD22 B28 GND A59 Vcc B59 Vcc A29 AD20 B29 AD2ZI A60 SREQ64 B60 SACK64 A30 GND B30 ADI9 A61 Vcc B61 Vcc A31 ADIS B31 33V A62 Vcc B62 Vcc page 66 Table 4 16 PCI Connector NOTES page 67 Chapter 5 Troubleshooting amp Error Messages Troubleshooting The first part of this chapter helps you identify and solve problems that might occur when the system is in use The second part lists error code messages that might display Please note that you should run an anti virus program whenever your system exhibits problems The cause of the prob lem may not be a virus but you could save considerable time and effort if your system turns out to be infected Many virus programs display intermittent symptoms that seem to be restricted to the hardware the software or the operating system only to change behavior Troubleshooting Procedure This section provides a step by step troubleshooting procedure to identify a problem and locate its source D CAUTION Turn off the system and any peripheral devices before you disconnect peripheral cables from the system Oth erwise you can permanently damage the system or the peripheral devices 1 page 68 Turn off the system and any peripheral devices Disconnect a
11. BIOS Recovery Jumper 11 Changing the Secondary Cache Jumpers 11 Power Supply Requirements 11 Installing the Motherboard 11 Upgrade 12 New System 12 Installation 12 Connecting the SIMMs 12 System Board Components 14 Installing an Add in Board 15 Removing an Add in Board 16 Connecting Devices When Configuring the System 16 Before Installing Optional Items 17 Turning on the System at First Start up 17 Using Keyboard Shortcuts 18 Setting Fast and Slow CPU Modes 19 Setting Up Add in Boards and Drives 19 Make a Record of the Setup Configuration 19 Overview of the Setup Menu Screens 19 Overview of the Setup Keys 20 Main BIOS Setup Screen 21 System Date 21 System Time 21 Floppy Options 21 Hard Disk C D E F 21 Language 21 Boot Options 21 Video Mode 21 Mouse 21 Base Memory 21 Extended Memory 21 Floppy Options Subscreen 22 Floppy A 22 Floppy B 22 Floppy A Type 22 Floppy B Type 22 Hard Disk Configuration Subscreen 22 Hard Disk Type 22 Number of Heads 23 Number of Sectors 23 Maximum Capacity 23 IDE Translation Mode 23 Multiple Sector Setting 23 Fast Programmed I O Modes 23 Boot Options Subscreen 23 Boot Sequence 24 System Cache 24 Boot Speed 24 Num Lock 24 Setup Prompt 24 Hard Disk Pre Delay 24 Typematic Rate Programming 25 Typematic Rate Delay 25 Typematic Rate 25 Advanced Screen 25 Processor Type 25 Processor Speed 25 Cache Size 25 Peripheral Configuration 25 Advanced Chipset Configuration 25 Power Management Conf
12. Board 1 Observe the precautions in Before You Begin 2 Disconnect cables connectors etc from the back panel 3 Remove any add in boards If necessary refer to Removing an Add in Board later in this chapter for more information 4 Remove the front 3 5 inch drive carrier if necessary 5 Label and disconnect the all cables connected to the system board 6 Remove any metal screws that secure the system board to the chassis Figure 2 1 Carefully lift the board up and out of the system e e e Roe CP mo 1 m I 7 65 S EX D 7A I OM03940 i TA i page 7 Figure 2 1 Removing the Old System Board Before Installing the New Board DO NOT INSTALL THE BABY AT BASEBOARD UNTIL YOU COMPLETE THE FOLLOWING STEPS Before you install the baseboard complete the following steps Required tools include a Phillips screwdriver 2 bit and a jumper removal tool Use an antistatic wrist strap and a conductive foam pad when working on the system Complete these steps before you begin the installation 1 Set up an equipment log to record the system model and serial numbers all installed options and other informa tion a
13. Exit screen allows you to Exit Discarding Changes see later in this chapter Pressing the lt Enter gt key selects the current item or option Pressing the up arrow lt gt key changes the selection to the previous item or option Pressing the down arrow lt L gt key changes the selection to the next item or option Pressing the left lt lt gt or right arrow lt gt keys in the Main Advanced Security or Exit menu screens changes the menu screen Pressing either key in a subscreen does nothing Pressing the lt F5 gt key allows you to Load Setup Defaults see later in this chapter Pressing the lt F6 gt key allows you to Discard Changes see later in this chapter Pressing the lt F10 gt key allows you to Exit Saving Changes see later in this chapter Table 2 8 Setup Function Keys Main BIOS Setup Screen This section describes the Setup options found on the main menu screen If you select certain options from the main screen e g Hard Disk the Setup program switches to a subscreen for the selected option System Date Specifies the current date Press Enter to select the month from a list of the 12 months Type in the day and year as required Press Enter for the changes to take effect System Time Specifies the current time Press display the time in an editable window Type in the hours minutes and seconds as requried Press Enter for the changes to take effect Floppy Options When selected thi
14. I O connectors Battery Flash memory device for system BIOS BIOS recovery boot jumper ISA add in board connectors PCI add in board connectors PS 2 keyboard and mouse connectors Installing an Add in Board D page 15 CAUTIONS Do not overload the system board by installing add in boards that draw excessive current See Add in Board Considerations in this chapter for more information Add in boards can be extremely sensitive to ESD and always require careful handling Hold the board by the edges only do not touch the electronic components or gold connectors After removing a board from its protective wrapper or from the system place it flat on a grounded static free sur face component side up Do not slide the board over any surface Observe the precautions in Before You Begin Remove the expansion slot cover from the slot you plan to use Save the cover and screw to reinstall if you decide not to install a board in that slot Remove the board from its wrapper and place it on a grounded static free surface component side up Record the board s serial number in your equipment log Set board jumpers and switches according to the manufacturer s instructions Record the settings in your equipment log Hold the board by the top edge or upper corners and firmly press it into the connector on the system board Refer to Align the rounded notch in the retaining bracket with the hole in the slot fram
15. Semiconductor CMOS A fast low power semiconductor RAM used to store system configuration data Configuration Byte A set up value in the Baby AT baseboard s BIOS enabling it to establish a pointer to an ATA PC card configuration register Once the pointer has been established the BIOS requires a register location to successfully complete an AT PC card interface Conventional Memory The first 640 KB of acomputer s total memory capacity If a computer has no extended mem ory conventional memory equals the total memory capacity In typical computer systems conventional memory can contain BIOS data the operating system applications application data and terminate and stay resident TSR programs Also called system memory Cylinders Heads Sectors CHS A specification of disk drive operating parameters consisting of the number of disk cylinders disk drive read write heads and disk sectors See also Logical Block Addressing D Default The state of all user changeable hardware and software settings as they are originally configured before any changes are made Disk Operating System DOS One or more programs which allow a computer to use a disk drive as an external stor age device These programs manage storage and retrieval of data to and from the disk and interpret commands from the computer operator Driver A software component of the operating system which directs the computer interface with a hardware device The software
16. Typematic Rate Programming is set to Default this option will not be visible Typematic Rate Sets the speed at which characters repeat when you hold down a key on the keyboard The higher the number the faster the characters repeat The options are 6 8 10 12 15 20 24 and 30 characters per second The default is 6 If Typematic Rate Programming is set to Default this option is not visible Advanced Screen This section describes the Setup options found on the Advanced menu screen If you select certain options from the Advanced screen e g Peripheral Configuration the Setup program switches to a subscreen for the selected option Subscreens are described in the sections following the description of the Advanced screen options Processor Type Reports the CPU type There are no options Processor Speed Reports the CPU clock speed There are no options Cache Size Reports the size of the secondary cache There are no options If your system contains no L2 cache this item will not appear Peripheral Configuration Brings up the Peripheral Configuration subscreen Advanced Chipset Configuration Brings up the Advanced Chipset Configuration subscreen page 25 Power Management Configuration Brings up the Advanced Power Management subscreen Plug and Play Configuration Brings up the Plug and Play Configuration subscreen Peripheral Configuration Subscreen This section describes the screens for the Peripher
17. beginning of the power on self test POST b After a short delay less than 10 seconds the speaker beeps again but at a higher frequency This marks the beginning of the recovery process Atthis point the system is copying the recovery code into the flash device c After about 30 seconds the speaker beeps twice again at the higher frequency marking the end of the recovery process Turn the system off Change the Recovery Boot Enable jumper back to the Normal position Leave the upgrade floppy in drive A and turn the system on Continue with the original upgrade Appendix C Suspend Resume The Suspend Resume Option The suspend resume feature makes it possible to suspend and resume system operation and to shut down and restart system power all by pressing and releasing the power control button on the front of the system This appendix tells how to e Suspend and resume system operation e Shut down and restart system power e Reset the system gt Note Chapter 2 in this manual tells how to turn off system power and how to reset the system If your system contains the suspend resume option use the information in this appendix for turning off re starting and resetting the system Suspending and Resuming Operation When you use the suspend mode of operation you reduce the computer s energy consumption in accordance with the EPA Energy Star specification The resume feature returns the system to an active sta
18. cache jumpers Replace any add in boards or other system components that were removed to gain access to the SRAM sockets i lt C OM03938 Figure 3 4 Installing Cache and Tag Memory Enhanced IDE Peripheral Interface The system provides two high speed 32 bit IDE interfaces Each IDE interface supports Up to two IDE hard drives on the PCI bus PIO Mode 3 and 4 and AT API devices In conjunction with the system BIOS the IDE interface provides an option that supports logical block addressing LBA of hard drives larger than 528 MB If you are using third party controllers or non IDE hard disk drives the system Setup program provides options that allow you to manually configure the controller functions page 44 System I O A single onboard I O controller integrates the functions for the serial ports parallel port and diskette drive This com ponent provides e Multimode bi directional parallel port Standard mode Centronics compatible operation Support for Enhanced Parallel Port High speed mode support for Enhanced Capabilities Port e Two RS 232C compatible 9 pin serial ports e Industry standard diskette drive controller
19. disk If Hard Disk Type is set to Auto Configured this reports the number of sectors for your hard disk and cannot be modified Maximum Capacity Reports the maximum capacity of your hard disk It is calculated from the number of cylinders heads and sectors There are no options here IDE Translation Mode Specifies the IDE translation mode The options are Standard CHS standard cylinder head sector less than 1024 cylinders Logical Block Extended CHS extended cylinder head sector greater than 1024 cylinders and Auto De tected BIOS detects IDE drive support for LBA The default is Auto Detected Use the Auto Detect feature first to determine if your drive is recognized by the BIOS This ensures that the drive is configured and formatted properly by any system that supports autotyping D CAUTION Do not change this from the option selected when the hard drive was formatted Changing the option can result in corrupted data or problems booting the system Multiple Sector Setting Sets the number of sectors transferred by an IDE drive per interrupt generated The options are Disabled 4 Sectors Block 8 Sectors Block or Auto Detected The default is Auto Detected Check the specifications for your hard disk drive to determine which setting provides optimum performance for your drive Fast Programmed I O Modes Sets how fast transfers on the IDE interface occur The options are Disabled or Auto Detected The default is Aut
20. during which the CPU suspends processing while waiting for data to be transferred to or from the system data or address buses X Y Z Xmodem A popular serial communication protocol which specifies among other things the size of data packets to be transmitted or received and error correction methodology page 96
21. e Real time clock for the system e Keyboard and mouse controller System BIOS The system BIOS from American Megatrends Incorporated AMI provides ISA and PCI compatibility The BIOS is contained in a flash memory device on the system board The BIOS provides the power on self test POST the system Setup program a PCI and IDE auto configuration utility and BIOS recovery code BIOS Upgrades Because the BIOS is stored in a flash memory device you can easily upgrade the BIOS without having to disassemble the system The flash upgrade process can be done by running a utility from a diskette or hard disk or over a network The DOS based upgrade utility Flash Memory Update Program FMUP has three main options e Update the flash BIOS from a file on disk e Copy the current BIOS code from the flash device to a disk file to provide a backup if the upgrade cannot be finished e Compare the flash BIOS to a disk file to verify that the versions are the same and make sure that the sys tem has the correct BIOS version For information about the latest BIOS update contact your service representative page 45 Plug and Play Your system is fully Plug and Play compatible Plug and Play makes it easier to add components to your system This feature provides these important benefits e PCI cards and Plug and Play ISA cards are configured automatically e IDE hard disks and main memory are configured automatically e Windows95 Plug and Pl
22. in use or is tested by POST Make sure the power and signal cables for the drive are properly installed Check that the drive is properly configured and en abled in Setup What happens What to do page 72 Hard drive light does not go Make sure the power and signal cables for the drive on when drive is in use or is are properly installed tested by POST Make sure the front panel connector is securely at tached to the system board headers Check that the drive is properly configured and en abled in Setup Check the drive manufacturer s manual for proper configuration for remote hard disk drive activity Power on light does not go If the system is operating normally check the con on nector between the system board and the front panel If OK the light may be defective Prompt doesnt appear after See Problems at Initial System Start up system boots Setup can enter If you can enter Setup to make changes check the switch that disables entry into Setup Chapter 6 If the switch is set to allow entry into Setup you might need to clear CMOS RAM to the default values and reconfigure the system in Setup System halts before completing This indicates a fatal system error that requires im POST mediate service attention Note the screen display and write down any beep code emitted Provide this information to your service representative Error and Information Messages The rest of t
23. interface to the driver is standardized such that application software calling the driver requires no specific operational information about the hardware device page 91 Dual In Line Package DIP A semiconductor package configuration consisting of a rectangular plastic case with two rows of pins one row on each lengthwise side Dynamic Bus Sizing The ability of the Intel386EX microprocessor via a dedicated signal from the memory bus con troller to engage 16 bit to 8 bit conversion cycles and adjust wait states when accessing an 8 bit device Dynamic Random Access Memory DRAM Semiconductor RAM memory devices in which the stored data will not remain permanently stored even with the power applied unless the data are periodically rewritten into memory during a refresh operation E Electrically Erasable Programmable ROM EEPROM Specifically those EPROMs which may be erased elec trically as compared to other erasing methods Erasable Programmable ROM EPROM A semiconductor ROM device capable of being erased and repro grammed by the user as often as desired Once programmed the EPROM is a nonvolatile memory that will hold its stored data indefinitely Extended Data Out EDO A type of DRAM that allows higher memory system performance since the data pins are still driven when CAS is de asserted This allows the next DRAM address to be presented to the device sooner than with Fast Page Mode DRAM Extended Memory The RAM addr
24. is not available you can provide some ESD protection by wearing an antistatic wrist strap and attaching it to a metal part of the system chassis Add in boards can be extremely sensitive to ESD and always require careful handling After remov ing the board from its protective wrapper or from the system place the board flat on a grounded static free surface component side up Use a conductive foam pad if available but not the board wrapper Do not slide the board over any surface and Inspect the Baby AT baseboard Unpack and visually inspect the board for damage which may have occurred in shipment Retain all packing material and shipping documentation DO NOT REMOVE ANY MODULES FROM THEIR ANTI STATIC BAGS UNLESS YOU ARE IN A STATIC FREE ENVIRON MENT THE BABY AT BASEBOARD LIKE MOST OTHER ELECTRONIC DEVICES IS SUSCEPTIBLE TO ESD DAMAGE ESD DAMAGE IS NOT ALWAYS IMMEDIATELY OBVIOUS IT CAN CAUSE A PARTIAL BREAKDOWN IN SEMICONDUCTOR DEVICES THAT MIGHT NOT IMMEDIATELY RESULT IN FAILURE If damage has occurred in shipment notify the carrier at once to initiate a damage claim Contact your dealer or Radi Sys customer service for replacement of damaged products Make sure you take great care in providing protection from Electro Static Discharge ESD Do not flex or scrape a printed circuit board when handling If you are working with a new system skip ahead to the appropriate section of this chapter page 6 Removing the Old System
25. pins 1 6 as shown below The jumper selection is used in conjunction with switch 7 and switch 8 for speed options CPU J1 Switch 7 Switch 8 75 MHz 2 3 4 5 on off 90 MHz 2 3 4 5 off off 100 MHz 2 3 4 5 on on 120 MHz 1 2 4 5 off off 133 MHz 1 2 4 5 on on 150 MHz 1 2 5 6 off off 166 MHz 1 2 5 6 on on 200 MHz 2 3 5 6 on on Table 3 2 CPU Speed Settings 1 Jumper or Function Settings Switch Switch 2 CPU voltage regulator OFF Default VR mode some upgrade processors 3 3 V 3 465 V may require changing ON VRE mode 3 465 V 3 63 V from the default VR set ting to the VRE setting CAUTION This switch should only be changed to the VRE setting if documentation that came with your upgrade CPU indicates that the required voltage must be between 3 465 V and 3 63 V page 35 Switch I ISA bus clock speed OFF default 8 33 MHz 75 MHz CPU sets the ISA bus to a 10 0 MHz 90 MHz CPU slower or faster setting 11 0 MHz 100 MHz CPU 10 0 MHz 120 MHz CPU 11 0 MHz 133 MHz CPU 10 0 MHz 150 MHz CPU 11 0 MHz 166 MHz CPU 11 0 MHz 200 MHz CPU ON 8 33 MHz 75 MHz CPU 7 50 MHz 90 MHz CPU 8 33 MHz 100 MHz CPU 7 50 MHz 120 MHz CPU 8 33 MHz 133 MHz CPU 7 50 MHz 150 MHz CPU 8 33 MHz 166 MHz CPU 8 33 MHz 200 MHz CPU Table 3 3 System Board CPU Jumper and Switch Settings Installing the Upgrade To install the upgrade do the following
26. secondary IDE controller has requested a Conflict resource that is already in use Serial Port T Resource Conflict Serial port I has requested a resource that is al ready in use Serial Port 2 Resource Conflict Serial port I has requested a resource that is al ready in use Static Device Resource Conflict A non Plug and Play ISA card has requested a resource that is already in use System Board Device Resource Con A non Plug and Play ISA card has requested a flict resource that is already in use Resetting the System To reset the system from the keyboard press the key sequence lt Ctrl Alt Del gt You can also reset the system by shutting system power off and then powering back up To do this page 77 1 4 Press and release the front panel power control button Moving the rear panel power enable switch to the 0 position will also power down the system Wait at least 20 seconds Press and release the front panel power control button If you moved the power enable switch at the back of the system to 0 you must move it back to the 1 position before pressing the front power con trol switch The system powers up and immediately begins the power on self test POST Note If your system contains the suspend resume power feature the power control button on the front of the system gives you additional control features See Chapter 6 Support and Service In North Am
27. ter 2 Replacing the Battery A lithium battery installed in a socket on the system board provides backup for the real time clock and CMOS RAM The battery has an estimated life expectancy of seven years When the battery starts to weaken it loses voltage when the voltage drops below a certain level the system settings page 47 stored in CMOS RAM for example the date and time may be wrong If the battery fails you will need to replace it with the same or equivalent type of battery installed in the system As long as local ordinace permits you may dispose of individual batteries as normal trash Do not expose batteries to excessive heat or fire Keep all batteries away from children CAUTION Danger of explosion if the battery is incorrectly replaced Replace only with the same or equivalent type rec ommended by the equipment manufacturer Discard used batteries according to manufacturer s instructions ATTENTION Il y a danger d explosion s li y a remplacement incorrect de la batterie Remplacer uniquement avec une bat terie du m me type ou d un type recommand par le constructeur Mettre au r but les batteries usag es con form ment aux instructions du fabricant ADVARSEL Lithiumbatteri Eksplosionsfare ved fejlagtig handtering Udskiftning ma kun ske med batteri af samme fab rikat og type Lev r det brugte batteri tilbage til leverandgren ADVARSEL Lithiumbatteri Eksplosjonsfare Ved utskifting ben
28. the flash upgrade menu appears choose Update Flash Memory Area from a file 5 When the menu asks you to enter a path filename use the arrow keys to select the bio file and press lt Enter gt 6 The utility asks for a confirmation that you want to load the new flash into memory Select Continue with Programming 7 After the upgrade completes remove the upgrade disk 8 Reboot the system and start the Setup program Press lt F5 gt to reset the BIOS defaults Then use the copy of the Setup selections you made at the beginning of this procedure to set the options BIOS Recovery It is unlikely that anything will interrupt the Flash upgrade process However if an interruption occurs that prevents continuing with the upgrade it is possible the BIOS may be left in an unusable state The steps below tell how to re cover from this kind of problem gt Note Because of the small amount of code available in the non erasable boot block area no video is avail able to direct the procedure You must monitor the flash recovery by listening to the speaker page 86 page 87 Change the Recovery Boot Enable jumper to the Recovery mode position see Chapter 6 for the loca tion of the jumper Install the bootable upgrade diskette into diskette drive A Reboot the system Listen to the speaker You should hear beeps in the following sequence a After you reboot the system the speaker beeps once This beep marks the
29. 0 Reserved Interval Timer 1 Reserved Keyboard buffer full 2 Reserved Cascade interrupt from slave PIC 3 Serial Port 2 4 Serial Port 1 5 Parallel port 2 6 Floppy 7 Parallel Port 1 8 Real Time Clock 9 User available 10 User available 11 User available 12 On board Mouse Port Avail if no PS 2 mouse 13 Reserved Math coprocessor 14 Primary IDE if enabled else user available 15 Secondary IDE if enabled else user available Table 3 Table A 3 Board Interrupts DMA page 84 DMA Data Width System Resource Channel 0 8 or 16 bits Open 1 8 or 16 bits Open Normally used for LAN 2 8 or 16 bits Floppy 3 8 or 16 bits Parallel Port 4 Reserved Cascade channel 5 16 bits Open 6 16 bits Open 7 16 bits ISA IDE Table 4 Table 4 4 DMA NOTES page 85 Appendix B BIOS Update and Recovery BIOS Update The system BIOS resides on a flash component You can upgrade a flash BIOS through software without taking the system apart or replacing the flash component This appendix tells how to upgrade your system BIOS from a diskette The appendix also tells how to recover from an interrupted upgrade Your service representative can provide you with the latest BIOS upgrade for your system Using the Upgrade Utility 1 Write down the Setup selections currently set on your system Chapter 2 tells about the Setup program 2 Insert the upgrade diskette in your system s diskette drive 3 Reboot the system 4 When
30. 000 000000 000000 OM04149 Figure 3 2 Installing an OverDrive Microprocessor Upgrade System Memory The system supports base conventional and extended memory Operating systems such as MS DOS OS 2 UNIX and all application programs use base memory For better performance Windows95 OS 2 and UNIX as well as many MS DOS applications use extended memory For the system memory map See Appendix A The system supports up to 128 MB of DRAM DRAM is implemented through four 72 pin single in line memory mod ules SIMMs Installing Single In line Memory Modules SIMMs The system board contains four 72 pin gold contact SIMM sockets The sockets are defined as Bank 0 and Bank 1 Two SIMM sockets make up one SIMM bank Figure 3 3 A shows the sockets that make up Bank 0 Figure 3 3 B shows Bank 1 The types of SIMMs that can be installed in the system are as follows 4 MB 8 MB 16 MB and 32 MB When you install SIMMs you must completely fill at least one bank The computer automatically detects the installed memory so it doesn t matter which bank is used as long as both sockets in the bank are filled You can mix SIMM sizes and types between banks but not within a bank For example you should not install a 4 MB SIMM in one socket of Bank 0 and install an 8 MB SIMM in the second socket of the same bank Likewise you should not mix EDO and Fast Page Mode FPM SIMMs in the same bank You can however install 4 MB SIMMs in B
31. 1 DRQ3 Ground 23 VO Write Ground 25 I O Read Ground 27 IOCHRDY BALE 29 DACK3 Ground 31 IRQ14 IOCS16 33 Addr 1 Ground 35 Addr 0 Addr 2 37 Chip Select 0 Chip Select 1 39 Activity Ground Table 4 6 IDE Peripheral Connectors page 56 Turbo Connector 1716 14 121110 87 5 2 1 CECI CCE XO Ok om OM03945 Pin Signal Name ik PULL_UP_330 2 LED_TURBO Table 4 7 Turbo Connector page 57 Hard Disk Drive LED Connector 1716 IT 14 121110 87 5 2 1 OO KT Pin OM03946 Signal Name PULL_UP_330 Key HD ACTIVE PULL_UP_330 Table 4 8 Hard Disk Drive LED Connector page 58 Keylock Power LED Connector 1716 4 121110 87 5 21 oO OKI 00 O OM03947 Pin Signal Name 10 Ground 11 KEY LOCK 12 Ground 13 Key 14 LED_PWR Table 4 9 Keylock Power LED Connector page 59 Reset Connector 1716 14 121110 87 5 21 eee 000 CC OM03948 Pin Signal Name 16 Ground 17 RESET page 60
32. 200 MHz 33 MHz 11 0 MHz 8 33 MHz Table 2 3 PCI ISA Bus Clock Speeds for Different CPUs To change the ISA bus clock speed switch 1 Turn off power and remove the system cover 2 Move switch 1 to the desired position 3 Replace the system cover and turn power back on Changing the BIOS Recovery Jumper Appendix B tells how and when to use the BIOS recovery jumper Changing the Secondary Cache Jumpers You must change the secondary cache jumpers if you install cache memory See Installing Cache and Tag Memory later in this chapter for instructions for adding cache memory including changing the secondary cache jumpers Power Supply Requirements Power the Baby AT baseboard using the P8 P9 connector found on any standard PC AT compatible power supply Installing the Motherboard D CAUTION Do not flex any printed circuit board or scrape any board components page 11 Upgrade If you are swapping out motherboards in an existing system identify and mark any cables or peripheral cards before removing them Use your system log to record the system configuration so that you can complete a full recovery if necessary Note that you may be completely replacing a system I O board that contains serial and parallel ports plus the hard disk drive and floppy disk drive controller Consider backing up your hard disk drive as well New System If you are building a system for the first time take note of whether the motherboard ca
33. 3 741 824 to be exact page 92 H Hang A condition where the system microprocessor suspends processing operations due to an anomaly in the data or an illegal command in the instruction set Header A mechanical pin and sleeve style connector on a circuit board The header may exist in either a male or fe male configuration For example a male header has a number and pattern of pins which corresponds to the number and pattern of sleeves on a female header plug Hexadecimal h A base 16 numbering system using numeric symbols 0 through 9 plus alpha characters A B C D E and F as the 16 digit symbols Digits A through F are equivalent to the decimal values 10 through 15 I Industry Standard Architecture ISA A popular microcomputer expansion bus architecture standard The ISA standard originated with the IBM PC when the system bus was expanded to accept peripheral cards Input Output I O The communication interface between system components and between the system and connect ed peripherals Integrated Drive Electronics IDE A hard disk drive controller interface standard IDE drives contain the controller circuitry at the drive itself as compared to the location of this circuitry on the computer motherboard in non IDE systems IDE drives typically connect to the system bus with a simple adapter card containing a mini mum of on board logic Interrupt Request INT A software generated interrupt request Interrupt Reques
34. 5 ns or faster SRAMs in the cache sockets 3 Leave the Tag SRAM in its socket Table 3 6 Guidelines for Adding or Upgrading Cache and Tag Memory Contact your service representative for a recommendation on specific part numbers for installing cache Tag memory page 42 Before you can install or remove cache tag SRAM you must remove the system cover and any add in boards that are blocking access to the cache Tag memory sockets After you are finished replace any system parts you removed Re fer to Chapter 2 for the procedures to remove and replace the system cover and add in boards page 43 1 2 Remove one of the SRAMs from its antistatic package being careful not to touch the pins on the device For 32 KB x 8 memory devices Position the SRAM so that the top four pins of the socket are uncon nected Figure 3 4 C For 64 KB x 8 memory devices Position the SRAM so its orientation mark either a notch or a small dot on the top of the short side aligns with the end of socket that has a notch Figure 3 4 D Notice that with 64 KB x 8 memory devices all the pins in the socket are used Press the SRAM into the socket Be careful not to bend the pins Repeat steps through 3 to install the remaining SRAMs in the remaining empty SRAM sockets Change the secondary cache jumper settings to match the amount of cache now present on the system board Refer to Table 2 1 and Figure 2 1 for the correct settings for the secondary
35. 6 MB 32 MB total in Bank 0 4 MB 8 MB total in Bank 1 48 MB 16 MB 32 MB total in Bank 0 8 MB 16 MB total in Bank 1 64 MB 16 MB 32 MB total in Bank 0 16 MB 32 MB total in Bank 1 64 MB 32 MB 64 MB total in Bank 0 Empty 72 MB 32 MB 64 MB total in Bank 0 4 MB 8 MB total in Bank 1 80 MB 32 MB 64 MB total in Bank 0 8 MB 16 MB total in Bank 1 96 MB 32 MB 64 MB total in Bank 0 16 MB 32 MB total in Bank 1 128 MB 32 MB 64 MB total in Bank 0 32 MB 64 MB total in Bank 1 page 39 Table 3 5 Memory Options To install SIMMs do the following procedure page 40 1 2 8 Observe the precautions in Before You Begin Turn off all peripheral devices connected to the system Turn off the system Remove any full length add in boards or other components as needed to gain access to the sockets see Chapter 2 for assembly procedures and precautions Holding the SIMM only by the edges remove it from its antistatic package A SIMM has a small notch in the middle of the bottom edge that mates with a raised bump in the SIMM socket There is also a notch at one side of the module Hold the SIMM at approximately a 60 angle relative to the socket Figure 3 3 C Firmly insert the bottom edge of the SIMM into the socket Press evenly against the SIMM s upper corners and rotate the module to approximately a 30 40 angle relative to the socket Secure the SIMM with the retaining clips of the connector Fig
36. B 2 3 1 2 1 2 Switches Reserved CAUTION These switches have been set by 8 7 6 the factory for your system do not change these switches from the factory setting unless you are installing a new CPU Make sure Jumper J1 is set correctly when changing these settings Refer to CPU Chapter 3 Switch 5 Enables disables access to Set OFF Setup program can be up Program accessed Default ON Setup program access disabled Switch 4 Reset CMOS settings to de OFF Normal mode Default fault CMOS RAM values ON Reset CMOS settings Switch 3 Clear password OFF Normal mode Default ON Clear password page 9 Table 2 1 System Board Jumper and Switch Settings Jumper or Switch in Function Settings Figure 2 1 Switch 2 CPU Voltage Regulator Refer to CPU Chapter 3 Switch T ISA bus clock speed Refer to CPU Chapter 3 Table 2 2 CPU Jumper and Switch Settings How to Disable Access to the Setup Program 1 Turn off power and remove the system cover 2 Move switch 5 to the ON position 3 Replace the system cover and turn power back on 4 To enable access to the setup program move switch 5 back to the OFF position How to Clear CMOS RAM This procedure should be done after the system BIOS is updated 1 2 Turn off power and remove the system cover Move switch 4 to the ON position Turn on power and allow the system to boot Turn off power Move switch 4 back to the OFF posi
37. RadiSys Long Life Baby AT Baseboard Hardware Reference Manual RadiSys Corporation 5445 NE Dawson Creek Drive Hillsboro OR 97124 503 615 1100 FAX 503 615 1150 http www radisys com RadiSys is registered trademark of RadiSys Corporation IBM PC XT and PC AT are registered trademarks of International Business Machines Corporation Microsoft Windows Windows 95 Windows NT and MS DOS are registered trademarks of Microsoft Corporation Intel and Pentium are registered trademarks of Intel Corporation All other trademarks registered trademarks service marks and trade names are property of their respective owners January 1997 Copyright 1997 by RadiSys Corporation All rights reserved Hardware Warranty RadiSys Corporation RadiSys warrants this product to the original purchaser for two years from the product s ship ping date If a product fails to operate in compliance with its specification during this period RadiSys will at its op tion repair or replace the product at no charge The customer is however responsible for shipping the product RadiSys assumes no responsibility for the product until it is received This warranty does not cover repair of products that have been damaged by abuse accident disaster misuse or incorrect installation RadiSys limited warranty covers products only as delivered User modification such as the addition of memory arrays or other devices may void the warranty and if th
38. al Configuration subscreen Configuration Mode Enables you to choose between setting the peripheral configuration yourself or having the system do it The options are Auto and Manual The default is Auto When Auto is selected the system peripherals are automatically configured during power up The options below for PCI IDE Interface Floppy Interface Serial Port 1 and Serial Port 2 Addresses Serial Port 2 IR Mode and the Parallel Port Address cannot be modified The settings displayed for those options reflect the current state of the hardware PCI IDE Interface Enables or disables the PCI IDE hard disk interface The options are Enabled and Disabled The default is Enabled If Configuration Mode is set to Auto this option cannot be modified If you need to use a IDE PCI add card with IDE enabled on the card disable the motherboard s IDE interface using this option Floppy Interface Enables or disables the floppy diskette drive interface The options are Enabled and Disabled The default is Enabled If Configuration Mode is set to Auto this option cannot be modified If using an IDE PCI add in card with the floppy enabled on the card disable the motherboard s floppy interface using this option Serial Port 1 Address Selects the address of the serial port The options are Disabled COM1 3F8h COM2 2F8h COM3 3E8h and COM4 2E8h The default is COM1 3F8h If the Configuration Mode is set to Auto the Setup program
39. ally related to improper board installation or interrupt and address conflicts Go through the checklist below to see if you can correct the problem If the problem persists after you have checked and corrected all of these items contact the board vendor s customer service representative Did you install the add in board according to the manufacturer s instructions Check the documentation that came with the board ___ Are all cables installed properly The following items are suggestions for troubleshooting problems related to ISA legacy non Plug and Play add in boards If the ISA legacy board uses an interrupt run Setup and set the interrupt that is being used by the ISA board to Used by ISA Card If the ISA legacy board uses memory space between 80000H 9FFFFH run Setup and set conventional memory to 512 K ___ If the ISA legacy board uses shared memory between C8000H DFFFH run Setup and enable shared memory for the appropriate memory space Problems and Suggestions Contact your service representative if the suggested actions don t solve the problem What happens What to do page 71 Application software prob lems Make sure all cables are installed correctly Verify that the system board jumpers are set properly Verify that your system hardware configuration is set cor rectly In Setup check the values against the system set tings you recorded previously If an error is evident wrong type o
40. an add in card s ROM to the same address in system page 29 memory This provides faster access and achieves higher performance By default all upper memory is shadowed ISA Shared Memory Base Address Sets the base address for the ISA Shared Memory The options are C8000h CC000h D0000h D4000h D8000h and DC000h The default is C8000h This setting could affect the ISA Shared Memory Size item The value entered in the ISA Shared Memory Size item cannot extend to the E0000h address For example if a size of 64K was selected options D4000h D8000h and DC000h are not available IRQ 3 4 5 7 9 10 11 12 Sets the status of the IRQ The options are Available and Used By ISA Card The default is Available The PCI auto configuration code looks here to see if these interrupts are available for use by a PCI add in board If an interrupt is available the PCI auto configuration code assigns the interrupt to be used by the system If your system contains an ISA agent that uses one of these interrupts select Used By ISA Card for that interrupt gt Note IRQ 3 4 5 and 7 may not be available in this option depending on the setting chosen for the COM1 COM2 and parallel ports in the Peripheral Configuration Subscreen Security Screen This section describes the two access modes that can be set using the options found on the Security screen and then describes the Security screen options themselves Administrative and User Access Mo
41. ank 0 and 8 MB SIMMs in Bank 1 You can also install EDO SIMMs in one bank and FPM SIMMs in the second bank When adding SIMMs use only tin lead 72 pin EDO or FPM DRAM Table 3 4 shows which speed DRAMS should be used with which CPU Faster devices can be used but will not improve system performance page 38 CPU Speed EDO DRAM Speed Fast Page Mode DRAM Speed 75 MHz 70 ns 70 ns 90 MHz 70 ns 70 ns 100 MHz 60 ns 70 ns 120 MHz 70 ns 70 ns 133 MHz 60 ns 70 ns 150 MHz 70 ns 70 ns 166 MHz 60 ns 70 ns 200 MHz 60 ns 70 ns Table 3 4 Required SIMM Speeds By using various combinations of SIMMs you can configure the system memory from 8 MB to 128 MB Table 3 5 shows the possible combinations of SIMM types and the resulting amount of system memory Remember that each SIMM bank contains two SIMM sockets Therefore the amount of memory in one bank includes the memory installed in both sockets in that bank aes Install a 72 pin SIMM of the follow Install a 72 pin SIMM of the follow Memory ing size in each socket in SIMM Bank ing size in each socket in SIMM Of 0 Bank 1 8 MB 4 MB 8 MB total in Bank 0 Empty 16 MB 4 MB 8 MB total in Bank 0 4 MB 8 MB total in Bank 1 16 MB 8 MB 16 MB total in Bank 0 Empty 24 MB 8 MB 16 MB total in Bank 0 4 MB 8 MB total in Bank 1 32 MB 8 MB 16 MB total in Bank 0 8 MB 16 MB total in Bank 1 32 MB 16 MB 32 MB total in Bank 0 Empty 40 MB 1
42. assigns the first free COM port normally COM 1 3F8h as the serial port 1 address regardless of what is selected under the Serial Port 1 Address option If Configuration Mode is set to Auto this option cannot be modified Serial Port 2 Address Selects the address of the serial port The options are Disabled COM1 3F8h COM2 2F8h COM3 3E8h and COM4 2E8h The default is COM2 2F8h page 26 If the Configuration Mode is set to Auto the Setup program assigns the first free COM port normally COM2 2F8h as the serial port 2 address regardless of what is selected under the Serial Port 2 Address option If Configuration Mode is set to Auto this option cannot be modified gt Note If either serial port address is set the address it is set to does not appear in the options dialog box of the other serial port If an ATI mach32 or an ATI mach64 video controller is active the COM4 2E8h address does not appear in the options dialog box of either serial port Serial Port 2 IR Mode Makes Serial Port 2 available to infrared applications The options are Enabled and Disabled The default is Disabled If Configuration Mode is set to Auto this option cannot be modified Parallel Port Address Selects the address and IRQ of the parallel port The options are Disabled LPT3 3BCh IRQ7 LPT1 378h IRQ7 LPT1 378h IRQ5 and LPT2 278h IRQ5 The default is LPT1 378h IRQ7 If the Configuration Mode is set to Auto the setup prog
43. ay ready Expansion Slots The system has four dedicated 16 bit ISA AT compatible three dedicated PCI compatible expansion slots and one combination slot that can be used by either a PCI or an ISA board See Chapter 2 for more information about expan sion slots and installing add in boards Power Management Your system supports the Intel Advanced Power management APM specification Advanced Power Management consists of one or more layers of software that support power management in computer with power manageable hard ware Power Management works with APM capable operating systems to reduce power consumtion in your system IDE hard drives and monitor graphics card combinations that support the VESA DPMS standards can be put to sleep along with the processor after a user defined period of inactivity The system Setup program provides options for de fining a time and a hotkey to enable the power saving mode Turning the System Off There are two ways to power off the system e Press and release the front panel power control button e Flip the rear power enable switch to the 0 position gt Note If your system contains the suspend resume power feature the power control button on the front of the system gives you additional control features See Appendix C for a description of the suspend resume features Resetting the System To reset the system from the keyboard press the key sequence lt Ctrl Alt Del gt page 46
44. board Characteristic Value Physical Length 13 inches 330 mm Height 8 11 16 inches 220 mm Thickness 1 1 2 inches 40 mm including SIMM and CPU fan Table 1 3 Physical Specifications Additional References Memory Products Data Manual Intel Corporation 1995 Plug and Play BIOS Specification 1 0A Compaq Computer Corp Phoenix Technologies Ltd Intel Corp May 5 1994 PCI Local Bus Specification Revision 2 1 PCI Special Interest Group June 1 1995 Pentium Processor User s Manual Intel Corporation 1995 Technical Reference Personal Computer AT International Business Machines Corporation 1985 page 4 Chapter 2 Getting Started This chapter explains how to install and set up your System Board including e Removing an old board optional and installing the new system board and optional devices e Turning on the system at first start up e Using the menu driven software to set up the Baby AT system e Setting jumpers on the board Before You Begin Before you begin an installation into a new system have the following equipment ready to use e Video device VGA or better monitor or flat panel display e Video graphics adapter card PCI or ISA e Power supply PC or portable power supply e PC AT PS 2 style keyboard to enter BIOS setup information e Two SIMMs 4 MB or larger 5 V 70 ns or better recommended see Chapter 3 e PS 2 style mouse a mouse is not optional for some ope
45. bout the system When you need this information it is easier to consult the log than to open up and examine the system 2 Inspect the board noting the location of the connectors and major components 3 Check and record the jumper settings to make sure they are correct In most cases the jumper defaults should be adequate for your needs For more information about the jumper settings refer to the next section of this chapter 4 Insert plastic standoffs into motherboard if required Jumper and Switch Block Overview The system board in your computer contains two sets of moveable jumpers and a switch block with eight slide switch es Refer to Figure 2 1 for a complete drawing of the motherboard jumpers The jumpers and switches make it possible to change certain aspects of the system configuration For instance you can prevent access to the system Setup program by changing a switch The system has been properly configured at the factory Normally the only time you change the jumper or a switch is if you want to do the following e Disable or enable access to the Setup program e Reset the CMOS RAM settings to the default values e Clear the system password e Change the ISA bus clock speed e Recover from a corrupted BIOS during a BIOS upgrade e Upgrade the secondary cache e Upgrade the CPU Table 2 1 describes the function of the switches and jumper Figure 2 2 shows the location of the switches and jumper on the system board Des
46. cards that don t support burst cycles If the display appears to be corrupted disable this field The default is enabled Bank O SIMM Detected Reports the type of memory fast page mode or EDO found in the bank 0 SIMM slots There are no options Bank 1 SIMM Detected Reports the type of memory fast page mode or EDO found in the bank 1 SIMM slots There are no options Power Management Configuration Subscreen This section describes the options available on the Power Management Subscreen Advanced Power Management Enables or disables the Advanced Power Management APM support in your system s BIOS The options are En abled and Disabled The default is Enabled Power Management will only work with APM capable operating systems to manage power consumption in your system If Advanced Power Management is set to Disabled none of the fields page 28 in the Advanced Power Management subscreen will be visible IDE Drive Power Down Sets any IDE drives to spin down when the system goes into power managed mode The options are Enabled and Dis abled The default is Enabled VESA Video Power Down Sets the command issued to your graphics controller when the system goes into power managed mode The command options are Disabled Standby Suspend and Sleep The default is Sleep which is the setting for the greatest power savings Inactivity Timer Sets how long the system must be inactive before it enters power managed mode Ente
47. che sockets that make it possible to install either 256 or 512 KB of secondary cache memory as an upgrade to the system Installing Cache and Tag Memory The system may not come with secondary cache memory installed on the system board You can add secondary cache by following the guidelines in Table 3 6 Whenever you upgrade from 0 cache you must also install a memory device in the Tag socket The cache will not function properly without the Tag device The cache memory plugs into the sockets shown in Figure 3 4 A Each cache socket can hold either a 32 KB x 8 or 64 KB x 8 3 3 V 15 ns or faster SOJ SRAM component The tag memory plugs into the socket shown in Figure 3 4 B The tag socket can only hold a 32 KB x 8 5 volt 15 ns or faster SOJ SRAM component gt Note All eight of the cache sockets must either be empty or fully populated with the same type of device Do not mix 32 KB x 8 devices with 64 KB x 8 devices To upgrade from Do This 0 to 256 KB 1 Install eight 32 KB x 8 3 3 volt 15 ns or faster SRAMs in the eight cache sockets 2 Install one 32 KB x 8 5 volt 15 ns or faster SRAM in the Tag socket 0 to 512 KB 1 Install eight 64 KB x 8 3 3 volt 15 ns or faster SRAMs in the eight cache sockets 2 Install one 32 KB x 8 5 volt 15 ns or faster SRAM in the Tag socket 256 KB to 512 KB 1 Remove the eight 32 KB x 8 SRAMs from the cache sockets 2 Install eight 64 KB x 8 3 3 volt 1
48. criptions of how to change the switches and jumper follow Figure 2 2 page 8 CAUTIONS To change a jumper or switch in an existing system remove the system cover and optionally add in boards or other system components To change a jumper or switch on a new motherboard before installation be sure to follow the pre cautions and procedures provided earlier in this chapter when you remove the cover or other system parts Do not squeeze the pliers or other tool you use to remove a jumper or you may bend or break the pins D Note A jumper is a small plastic encased conductor that slips over jumper pins To change a jumper set ting use a pair of fine needle nosed pliers to remove the jumper from its current location and slide it onto the new pins to obtain the desired setting Figure 2 2 System Board Switch and Jumper Blocks see Table 2 1 Jumper or Function Settings Switch in Figure 2 1 JumperJT CPU Bus Clock Speed Refer to CPU Chapter 3 Jumper Recovery boot enable jumper Pins I 2 Normal Default JINI If the BIOS is corrupted during a BIOS upgrade this jumper Pins 2 3 Recovery boot enable allows you to boot the system and recover the BIOS see Ap pendix C JIAT JIAZ Secondary cache these jump Cache Size JIAT JIAZ J3AI J3Al ers must be set according to mem the amount of secondary cache 9 KB default 1 2 1 2 No jumper installed 256 KB 1 2 2 3 No jumper 512 K
49. d Hard Disk Configuration Subscreen Hard Disk Type Used to configure the hard drive manually or have the system auto configure it The options are Auto Configured User Definable or Disabled The default is Auto Configured By selecting User Definable you can modify the Num ber of Cylinders Number of Heads and Number of Sectors items can be modified If you set up the system to Auto Configure when no C drive is present the system can spend up to 15 seconds search ing for the nonexistent drive Note that when you select Auto Configure the system configures automatically each time it boots up D CAUTION Do not change cylinders heads and sectors information from the entries used when the hard drive was for matted Changing the configuration can result in corrupted data or problems booting the system Number of Cylinders If Hard Disk Type is set to User Definable you must enter the correct number of cylinders for your hard disk If Hard Disk Type is set to Auto Configured this reports the number of cylinders for your hard disk and cannot be modified page 22 Number of Heads If Hard Disk Type is set to User Definable you must enter the correct number of heads for your hard disk If Hard Disk Type is set to Auto Configured this reports the number of heads for your hard disk and cannot be modified Number of Sectors If Hard Disk Type is set to User Definable you must enter the correct number of sectors for your hard
50. des The options on the Security screen menu make it possible to restrict access to the Setup program by enabling you to set passwords for two different access modes Administrative mode and User mode In general Administrative mode has full access to the Setup options whereas User mode has restricted access to the options Thus by setting separate Administrative and User passwords a system administrator can limit who can change critical Setup values The actual limitations depend on whether either the Administrative or User passwords or both are set See the table below for a description of how the passwords actually work together To limit access to who can boot the system set the User password This is the password that the system asks for before booting If only the Administrative password is set the system boots up without asking for a password If both pass words are set you can enter either password to boot the system The following table shows the effects of setting the Administrative and User passwords The table is for reference only and is not shown on the Security screen In the table the statement Can change a limited number of options means you can change the system date and time the power management hot key the User password the security hot key and unattended start Administrative and User Password Functions Password Set Administrative User mode Password Required Dur mode can can ing Boot Process Nei
51. disk is it properly formatted or defined page 69 ___ Are all SIMMs installed correctly Try reseating the SIMMs ____Is the operating system properly loaded See the operating system documentation Problems After the System Has Been Running Cor rectly After the system hardware and software have been running correctly problems often indicate equipment failure Go through the checklist below to see if the situation is one that may be easily corrected If the problem recurs after you have checked and corrected all of these items refer to the troubleshooting procedures see Troubleshooting Procedure in this chapter ____ If you are running the software from a diskette try a new copy ____ If you are running the software from a hard disk try running it from a diskette If the software runs cor rectly there may be a problem with the copy on the hard disk Reinstall the software on the hard disk and try again Make sure all the necessary files are installed Try clearing CMOS RAM and running Setup If the problems are intermittent there may be a loose cable dirt in the keyboard if keyboard input is incorrect a marginal power supply or other random component failures A transient voltage spike power outage or brownout may have occurred Symptoms of voltage spikes include a flickering video display unexpected system reboots and the system not responding to user commands Reload the software and try again Voltage
52. e The retaining bracket fits into the space that was occupied by the slot cover Insert a screw but push the notch against the screw before tightening Otherwise the bracket may in terfere with the bracket of an adjacent slot cover or with another add in board Connect cables if any are needed to the installed board OM03758 Figure 2 5 Installing an Add in Board Removing an Add in Board 1 Observe the precautions in Before You Begin 2 Disconnect any cables from the board you are going to remove 3 Remove the screw that holds the board retaining bracket to the chassis 4 Holding the board at each end pull firmly until the edge connectors pull free Be careful not to scrape the add in board against other components 5 Store the board in an antistatic protective wrapper 6 If you disconnected cables from the board and you are not reinstalling this board or one like it remove the cables from the system gt Note There must be covers on the vacant expansion slots to maintain the electromagnetic emissions and cooling characteristics of the system Connecting Devices When Configuring the System To configure the system you must add a monitor graphics controller and keyboard to the system If the system nor page 16 mally operates without a monitor or keyboard for example as a network server remove the appropriate devices after configuring the system Before Installing O
53. e address which specifies the fixed base address to which the offset is applied Serial Host A computer connected to another through a serial interface Connected together this way one computer can execute a program remotely on the other host computer page 95 Serial Port A physical connection with a computer for the purpose of serial data exchange with a peripheral device The port requires an I O address a dedicated IRQ line and a name to identify the physical connection and establish serial communication between the computer and a connected hardware device A serial port is often referred to as a COM port Shadow Memory RAM in the address range 0xC000h through OxFFFFFh used for shadowing Shadowing is the pro cess of copying BIOS extensions from ROM into DRAM for the purpose of faster CPU access to the exten sions when the system requires frequent BIOS calls Typically system and video BIOS extensions are shadowed in DRAM to increase system performance Single In Line Memory Module SIMM A small rectangular circuit board on which is mounted semiconductor memory ICs Standoff A mechanical device typically constructed of an electrically non conductive material used to fasten a cir cuit board to the bottom top or side of a protective enclosure Static Random Access Memory SRAM A semiconductor RAM device in which the data will remain permanently stored as long as power is applied without the need for periodically rewr
54. e disk in floppy drive A but cannot boot the system Use another boot disk Keyboard Controller Error The keyboard controller has failed during POST Keyboard is Locked Please Unlock It Some systems have an electronic key that en ables the user to lock the keyboard Keyboard Stuck Key Detected There is a key pressed down Master DMA Controller Error Error in the master DMA channel Master Interrupt Controller Error Master Interrupt Controller failed during POST Memory Size Decreased The amount of memory on the system board is less than the amount in CMOS RAM Run Setup Error Message Explanation page 75 Off Board Parity Error Parity error in memory installed in an ex pansion slot The format is OFF BOARD PARITY ERROR ADDR HEX XXXX XXXX is the hex address where the error occurred Slave DMA Controller Error Error in the slave DMA channel Slave Interrupt Controller Error Slave Interrupt Controller failed during POST System Memory Size Mismatch The amount of memory on the system board is different than the amount in CMOS RAM Run Setup Timer Channel 2 Error Most systems include two timers There is an error in timer 2 PCI Configuration Status and Error Messages The following PCI messages are displayed as a group with bus device and function information Message Explanation Floppy Disk Controller Res
55. e product is damaged during installation of the modifications this warranty does not cover repair or replacement This warranty in no way warrants suitability of the product for any specific application INNOEVENT WILL RADISYS BE LIABLE FOR ANY DAMAGES INCLUDING LOST PROFITS LOST SAV INGS OR OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABIL ITY TO USE THE PRODUCT EVEN IF RADISYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR FOR ANY CLAIM BY ANY PARTY OTHER THAN THE PURCHASER THE ABOVE WARRANTY IS IN LIEU OF ANY AND ALL OTHER WARRANTIES EXPRESSED OR IMPLIED OR STATUTORY INCLUDING THE WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICU LAR PURPOSE OR USE TITLE AND NON INFRINGEMENT Repair or replacement as provided above shall be the Purchaser s sole and exclusive remedy and RadiSys exclusive liability for any breach of warranty iii Table of Contents Chapter 1 Introduction 1 Purpose 1 About This Manual 1 Safety Compliance 2 System Environment 2 Specifications 2 Physical Measurements 4 Chapter 2 Getting Started 5 Before You Begin 5 Supplied Equipment 5 Optional Parts 5 Unpack and Inspect the Baby AT baseboard 6 Removing the Old System Board 7 Before Installing the New Board 8 Jumper and Switch Block Overview 8 How to Disable Access to the Setup Program 10 How to Clear CMOS RAM 10 How to Clear the Password 10 How to Set the ISA Bus Clock Speed Switch Switch 1 11 Changing the
56. eed the option of repairing their own equipment all components are available in a spares program RadiSys charges a minimum billing for this program Arranging Service To schedule service for a product please call the RadiSys Technical Support Department The telephone number ap pears on the cover of this manual Have the product model and serial numbers available along with a description of the problem A technical support representative will issue a Returned Materials Authorization RMA number a code number by which RadiSys tracks the product while it is being processed Once you receive the RMA number follow the instructions of the technical support representative and return the product to RadiSys freight prepaid Mark the RMA number clearly on the exterior of the package If possible re use original shipping containers and packaging In any case be sure you follow good ESD control practices when handling the product Use anti static bags and packing materials with adequate padding and shock absorbing properties Before you ship the product include the following information return address contact names and phone numbers in purchasing and engineering and a description of the problem If available include ancillary information related to the problem Ship the product freight prepaid to the RadiSys Product Service Center at the address shown on the front cover of this manual Other Countries Use the RadiSys world wide web site t
57. er The options are Disabled and 1 MB The default is Disabled If this is set to 1 MB then the ISA LFB Base Address field displays The base of this memory reported to the operating system will be 1 MB below the base address of the LFB Use only for older ISA expansion cards that are not Plug and Play com patible ISA LFB Base Address Reports the base address of the LFB which is set to 15 MB There are no options This field does not display if the ISA LFB Size is set to Disabled Video Palette Snoop Controls the ability of a primary PCI graphics controller to share acommon palette with an ISA add in video card by snooping write cycles to an ISA graphics card s color pallet registers Some video capture or TV tuner add in boards may require this feature to be enabled The options are Enabled and Disabled The default is Disabled Latency Timer PCI Clocks Sets the length oftime an agent on the PCI bus can hold the bus when another agent has requested the bus Valid num bers are between 0 and 256 The default is 66 One PCI clock is 1 PCI Bus Speed so if the PCI bus is operating at 33 MHz 1 33 MHz 30 nanoseconds The larger the number entered the longer the amount of time PCI bus agents can conflict with each other and thus the slower the system PCI Burst Enables or disables bursting on the PCI bus When disabled forces normal PCI cycles When enabled allows PCI cycles to be bursted Must be disabled with some graphics
58. erica Technical Support RadiSys maintains a technical support phone that is staffed weekdays except holidays between 8 00 AM and 5 00 PM Pacific time If you require assistance outside these hours you can leave a message on voice mail using the same phone number You can also request help via electronic mail or by FAX addressed to RadiSys Technical Support De partment See the cover of this manual for the RadiSys telephone and FAX numbers The RadiSys e mail address on the internet is support radisys com If you are sending e mail or a FAX please include information on both the hard ware and software being used and a detailed description of the problem specifically how the problem can be repro duced We will respond by e mail phone or FAX by the next business day Technical support services are designed for customers who have purchased their products from RadiSys or an autho rized sales representative If your RadiSys product is part of a piece of OEM equipment or was integrated by someone else as part of a system support will be better provided by the OEM or system vendor that did the integration and un derstands the final product and environment World Wide Web RadiSys maintains an active site on the world wide web The home page URL is http Avww radisys com The site con tains current information about the company and locations of sales offices new and existing products contacts for sales service and technical support informati
59. ess space in a computer so equipped above the 1 MB level External Device A peripheral or other device connected to the computer from an external location via an interface cable F Fast Page Mode FPM A standard type of DRAM that is lower performance than EDO but is less expensive Fixed Disk A hard disk drive or other data storage device having no removable storage medium Fixed disk storage devices use inflexible disk media and are sealed to prevent data loss due to media surface contamination Fixed disks generally provide the most storage space for a given cost when compared to semiconductor tape and other popular mass storage technologies Flash Boot Device FBD A flash memory device containing the computer s BIOS In the Baby AT baseboard a 512 KB Intel 28F400BV T semiconductor flash memory containing the system and video BIOS images the BIOS initializing code and the recovery code which allows self hosted reflashing Flash Card A removable read write flash storage device closely resembling a credit card in size and able to hold sev eral megabytes of data Flash Memory A fast EEPROM semiconductor memory typically used to store firmware such as the computer BIOS Flash memory also finds general application where a semiconductor non volatile storage device is required Flash Recovery See BIOS Recovery Flash Update See BIOS Update Force Update See BIOS Recovery G Gigabyte GB One billion bytes 2 7 1 07
60. f drive specified for example make the change in Setup and reboot the system Record your change Make sure the software is properly configured for the sys tem Refer to the software documentation for information Try a different copy of the software to see ifthe problem is with the copy you are using Try running the software in a different speed mode See Using Keyboard Shortcuts in Chapter 2 If other software runs correctly on the system contact the vendor of the software that fails What happens What to do Characters on screen are distorted Make sure the brightness and contrast controls are or incorrect properly adjusted Make sure the video signal cable and power cables are properly installed Make sure your monitor is compatible with the vid eo mode you have selected Characters do not appear on screen Make sure the video display is plugged in and turned on Check that the brightness and contrast controls are properly adjusted Check that the video signal cable is properly in stalled Make sure a video board is installed enabled and jumpered correctly Reboot the system CMOS RAM settings are wrong If system settings stored in CMOS RAM change for no apparent reason for example the time of day de velops an error the backup battery may no longer have enough power to maintain the settings Re place the battery Diskette drive light does not go on when drive is
61. his chapter describes beep codes and error messages that you might see or hear when you start up the system gt Note In all cases if the problem persists call your service representative Beep Codes Beeps Error Message Description T Refresh Failure The memory refresh circuitry on the moth erboard is faulty 3 Base 64 KB Memory Fail Memory failure in the first 64 KB ure page 73 Timer Not Operational Memory failure in the first 64 KB of memo ry or Timer 1 on the motherboard is not functioning 5 Processor Error The CPU on the motherboard generated an error 6 8042 Gate A20 Failure The keyboard controller may be bad The BIOS cannot switch to protected mode T Processor Exception Inter The CPU generated an exception interrupt rupt Error 8 Display Memory Read The system video adapter is either missing Write Error or its memory is faulty This is not a fatal er ror g ROM Checksum Error The ROM checksum value does not match the value encoded in the BIOS 10 CMOS Shutdown Register The shutdown register for CMOS RAM Read Write Error failed TI Cache Error 7 External The external cache is faulty Cache Bad Error and Information Messages Error Message Explanation Address Line Short Error in the address decoding circuitry on the motherboard Cache Memory Failure Do Not En able Cache Cache memory is defective CMOS Battery Failed CMOS RAM is
62. iguration 26 Plug and Play Configuration 26 Peripheral Configuration Subscreen 26 Configuration Mode 26 PCI IDE Interface 26 Floppy Interface 26 Serial Port 1 Address 26 Serial Port 2 Address 26 Serial Port 2 IR Mode 27 Parallel Port Address 27 Parallel Port Mode 27 Serial Port 1 IRQ 27 Serial Port 2 IRQ 27 Advanced Chipset Configuration Subscreen 27 Base Memory Size 27 ISA LFB Size 28 ISA LFB Base Address 28 Video Palette Snoop 28 Latency Timer PCI Clocks 28 PCI Burst 28 Bank O SIMM Detected 28 Bank 1 SIMM Detected 28 Power Management Configuration Subscreen 28 Advanced Power Management 28 IDE Drive Power Down 29 VESA Video Power Down 29 Inactivity Timer 29 Hot Key 29 Plug and Play Configuration Subscreen 29 Configuration Mode 29 Boot with PnP OS 29 ISA Shared Memory Size 29 ISA Shared Memory Base Address 30 IRQ 3 4 5 7 9 10 11 12 30 Security Screen 30 Administrative and User Access Modes 30 Security Screen Options 31 User Password is 31 Administrative Password is 31 Set User Password 31 Set Administrative Password 31 Unattended Start 31 Security Hot Key CTRL ALT 31 Exit Screen 31 Exit Saving Changes 31 Exit Discarding Changes 32 Load Setup Defaults 32 Discard Changes 32 Chapter 3 Theory of Operation 34 Central Processing Unit CPU 34 Upgrading the Processor 34 Clearance Requirements 34 Internal CPU Bus clock Speed J1 35 Installing the Upgrade 36 System Memory 38 Vi Installing Single In line Memor
63. in code that is used to extend the capabilities of the System BIOS BIOS Image Information contained in the flash boot device in binary file format consisting of initialzation data setup configuration data diagnostic sequences and other instructions necessary to start up acomputer and prepare it to load an operating system BIOS Recovery A process whereby an existing corrupt BIOS image in the flash boot device is overwritten with a new image Also referred to as a flash recovery BIOS Update A process whereby an existing uncorrupted BIOS image in the flash boot device is overwritten with a new image Also referred to as a flash update Bit A binary digit Boot The process of starting a computer and loading the operating system from a powered down state cold boot or after acomputer reset warm boot Before the operating system loads the computer performs a general hard ware initialization and resets internal registers Boot Block A write protected 16KB section of the flash boot device located at physical address FFFFCO00h to FFFFFFFFh which contains code to perform rudimentary hardware intitialization at system power up The boot block also contains code to establish an Xmodem serial communication link with a host PC when re flashing the BIOS page 90 Boot Device The storage device from which the computer boots the operating system Boot Sequence The order in which a computer searches external storage devices for an opera
64. in which case you can specify fast or slow mode by using the Setup program For instance the set slow or fast mode keyboard shortcut will not work if the CPU is being operated in protected mode When you operate Windows in enhanced mode the CPU is operating in protected mode page 18 The numbers and symbols in the following tables refer to the keys on the numeric keypad Setting Fast and Slow CPU Modes To do the following Press at the same time Set slow deturbo mode You ll hear a low tone beep lt Ctrl Alt gt Set fast turbo mode System runs at the full rated speed of the CPU You ll hear a high tone beep lt Ctrl Alt gt Table 2 5 Keyboard Speed Controls Setting Up Add in Boards and Drives Information earlier in this chapter described how to physically install add in boards and drives Note that this system board is fully Plug and Play compatible With Plug and Play capability the system automatically configures IDE hard disk drives diskette drives PCI add in boards and ISA add in boards that are compatible with the Plug and Play stan dard The remainder of this chapter tells how to use the American Megatrends AMI BIOS Setup program that is built into the system BIOS The Setup program makes it possible to change and store system configuration information such as the types of peripherals that are installed the boot up sequence for the system and enabling or disabling the power management s
65. iting the data into memory Symmetrically Addressable SIMM A SIMM the memory content of which is configured as two independent banks Each 16 bit wide bank contains an equal number of rows and columns and is independently addressable by the CPU via twin row address strobe registers in the DRAM controller Synchronous Expansion Bus SEB An extension of the local bus on some systems that is provided for the purpose of convenient interface with a user designed peripheral board The SEB operates at the speed of the CPU and provides an ISA like interface to the SVGA PCM ATA keyboard mouse and IDE controllers System Memory See Conventional Memory U User Editable Drive UED A feature of the Baby AT baseboard s BIOS When a User type hard disk drive setting shows in the IDE Adapter Sub Menu the BIOS queries the hard disk drive for the purpose of retrieving disk geometry If the hard disk drive is capable of providing this information the BIOS uses it to automatically set up the drive for use with the system vV Video Graphics Adapter VGA A popular PC graphics controller and display adapter standard developed by IBM The standard specifies among other things the resolution capabilities of the display device Display devices meeting the VGA standard must be capable of displaying a resolution of 640 horizontal pixels by 480 vertical pixels with 16 screen colors W Wait State A period of one or more microprocessor clock pulses
66. ition The system will power up and immediately begin the power on self test POST gt Note If your system contains the suspend resume power feature the power control button on the front of the system gives you additional control features See Appendix C for a description of the suspend resume features When you boot the system the POST checks the settings stored in CMOS RAM against the actual hardware configu ration During the memory test the POST displays the amount of memory that it has tested The POST can take up to 30 seconds to complete If you do not want to wait for the memory test to complete you can stop the test after it starts by pressing the lt Esc gt key If you want to go into the Setup program press the lt F1 gt key after the POST starts the memory test but before the system boots up Your next step after booting depends on what the POST finds See the following possibilities page 17 What happens What to do Nothing Check power supply and connections to motherboard Make sure P9 P8 connectors properly in stalled Verify power supply by noting if drives spin up No video Check monitor power If okay check power supply to see if motherboard powers up If okay re place video card If the settings in CMOS RAM match the hardware configuration and if the POST does not find any errors the power on testing continues No action needed If the POST finds a fatal error an error that prevents the s
67. ll external peripherals from the system except for the keyboard and the video display Make sure the system is plugged into a properly grounded power outlet Make sure your keyboard and video display are correctly connected to the system Turn on the video display and turn up its brightness and contrast controls to at least two thirds of the maximum refer to the documentation supplied with the video display If the operating system normally loads from the hard disk drive make sure there is no diskette in the diskette drive If the operating system normally loads from a diskette insert the operating system dis kette into the drive Turn on the system If the power indicator does not light but the system seems to be operating normally the indicator is probably defective Monitor the power on self test POST execution Each time you turn on the system the POST checks the system board memory keyboard and certain peripheral devices Note During the memory test the POST displays the amount of memory it has tested Depending on the amount of memory installed the POST can take up to 60 seconds to complete If you do not want to wait for the memory test to complete you can terminate the test after it starts by pressing the lt Esc gt Check the following during the POST a If the POST does not detect any errors the system beeps once and boots up b Errors that do not prevent the boot process non fatal errors display a mes
68. n be attached to the chassis with screws or with plastic standoffs Make sure you have sufficient add in cards such as PCI video recommended over ISA video cards and driver dis kettes plus any operating system diskettes or CD ROMs Installation 1 Align the board over the chassis with the expansion slot connectors toward the back of the system 2 3 NOTE Some system cages allow access by removing a side panel or even a bottom panel The Baby AT baseboard installs in any Baby AT tower or flat cage 4 5 Move the board into place over the mounting screw standoffs until the holes line up If plastic standoffs are used they should be lined up in their guides 6 Make sure the keyboard connector lines up with the insertion hole in the back 7 Secure the board to the chassis with the screws provided 8 If necessary reinstall the front 3 5 inch front drive carrier and any other obstacles that were removed Connecting the SIMMs Select a pair of matching 72 pin SIMMs for use with the Baby AT baseboard You must fully occupy at least one bank at a time Make sure that if possible you are using SIMMs with gold plated connections to match the baseboard s SIMM connectors The SIMM connectors on the Baby AT baseboard are made with gold plating and may not work reliably over the long term with tin plated SIMM connectors It may be necessary to rotate your SIMMs annually to avoid corrosion and pitting if you use tin plated SIMMs
69. ng real mode Real Mode Address A memory address composed of two 16 bit values a segment address and an offset quantity A real mode address is constructed by shifting a segment address 4 bits to the left and then adding the offset value A real mode address is a physical address Real Time Clock RTC Peripheral circuitry on a computer motherboard which provides a nonvolatile time of day clock an alarm calendar programmable interrupt square wave generator and a small amount of SRAM In the Baby AT baseboard the RTC operates independently of the system PLL which generates the internal sys tem clocks The RTC is typically receives power from a small battery to retain the current time of day when the computer is powered down Reflashing The process of replacing a BIOS image in binary format in the flash boot device Register An area typically inside the microprocessor where data addresses instruction codes and information on the status on various microprocessor operations are stored Different types of registers store different types of in formation Register Location A set up value in the Baby AT baseboard s BIOS which defines the base location at which the configuration register block in an ATA PC card may be found Reset A signal delivered to the microprocessor by the control bus which causes a halt to internal processing and resets most CPU registers to 0 The CPU then jumps to a starting address vector to begin the boot pr
70. nges made in the Setup program Exit Saving Changes Saves the changes to CMOS RAM and exits the Setup program You can also press the lt F10 gt key anywhere in the Setup program to do this page 31 Exit Discarding Changes Exits the Setup program without saving any changes This means that any changes made while in the Setup program are discarded and NOT SAVED Pressing the lt Esc gt key in any of the four main screens will do this Load Setup Defaults Resets all of the setup options to their defaults You can also press the lt F5 gt key anywhere in the Setup program to do this This selection loads the default Setup values from the ROM table Discard Changes Discards any changes you made during the current Setup session without exiting the program You can also press the lt F6 gt key anywhere in the Setup program to do this This selection loads the CMOS RAM values that were present when the system was turned on page 32 NOTES page 33 Chapter 3 Theory of Operation This chapter contains information about the following components functions and aspects of the RadiSys Long life Baby AT baseboard e CPU e System and cache memory e Enhanced IDE Peripheral Interface e System I O e System BIOS e BIOS Upgrades e Plug and Play Capability e Expansion Slots e Power Management e System Security e Keyboard Mouse Controller e Battery Central Processing Unit CPU The system is designed to operate wi
71. o Detected If set to Disabled transfers occur at a less than optimized speed If set to Auto Detected occur at the drive s maximum speed Boot Options Subscreen This section describes the options available on the Boot Options subscreen page 23 Boot Sequence Sets which drive the system checks first to find an operating system to boot from The following options are available C First Then A The system checks drive C first If no drive is present or no system files are on the drive the computer checks the floppy for system files A First Then C The computer checks drive A before checking drive C This selection enables you to boot from a diskette if necessary C Only The computer checks drive C and no other drives A Only The computer checks drive A and no other drives The default is A First Then C System Cache Enables or disables both the primary and the secondary cache memory The options are Enabled or Disabled The default is Enabled Disabling the system cache degrades performance significantly but can occasionally be useful during debugging Boot Speed Sets the system s boot and operating speed The options are Deturbo and Turbo The default is Turbo If Turbo is se lected boot up and system operation occurs at full speed If Deturbo is selected the board operates at a slower speed equivalent to a 25 MHz AT which may be necessary to run older software Num Lock Sets the beginning sta
72. o contact us or contact the sales organization from which you purchased your RadiSys product for service and support The RadiSys world wide web URL is http Avww radisys com page 79 Appendix A I O Memory Maps This appendix defines the system I O addresses memory map board interrupts and DMA chan nels System I O Addresses Address Range Size Decimal Description Hexadecimal 0000 000F 16 bytes PIX DMA 1 0020 0021 2 bytes PIX Interrupt Controller 1 0040 0043 4 bytes PIIX Timer 1 0048 004B 4 bytes PIIX Timer 2 0060 1 byte Keyboard Controller Data Byte 0061 1 byte PIIX NMI speaker control 0064 1 byte Keyboard Controller CMD STAT Byte 0070 bit 7 1 bit PIIX Enable NMI 0070 bits 6 0 7 bits PIX Real Time Clock Address 0071 1 byte PIIX Real Time Clock Data 0078 1 byte Reserved Brd Config 0079 1 byte Reserved Brd Config rd only 0080 OO8F 16 bytes PIIX DMA Page Register 00A0 OOA1 2 bytes PIIX Interrupt Controller 2 00C0 OODE 31 bytes PIX DMA 2 OOFO 1 byte Reset Numeric Error 0170 0177 8 bytes Secondary IDE Channel 01F0 01F7 8 bytes Primary IDE Channel 0278 027B 4 bytes Parallel Port 2 02F8 O2FF 8 bytes On Board Serial Port 2 0376 1 byte Secondary IDE Chan Continued page 80 System I O Addresses continued Address Range Size Decimal Description Hexadecimal 0377 1 byte Secondary IDE Channel 0378 037F 8 bytes Parallel port 1 03BC 03BF 4 bytes Parallel Por
73. ocation of a word in memory Each word in a memory storage device or system has a unique address Addresses are always specified as a binary number although octal hexadecimal and decimal numbers are often used for convenience American National Standards Institute ANSD An organization dedicated to advancement of national standards related to product manufacturing Autotype A convenient method of IDE device detection whereby the system BIOS queries the IDE device to obtain operational parameters Ifthe device supports autotype this information is passed to the BIOS where it is used to automatically configure the drive controller B Basic Input Output System BIOS Firmware in a PC compatible computer that runs when the computer is powered up The BIOS initializes the computer hardware allows the user to configure the hardware boots the operat ing system and provides standard mechanisms that the operating system can use to access the PC s peripheral devices BIOS Data Area BDA BIOS Data Area A 256 byte block of DRAM starting at address 400H that contains data initialized and used by the System BIOS detailing the system configuration and errors encountered during POST BIOS Extension An object code module that is typically integrated into the FBD or placed into aROM that is acces sible on the peripheral bus PCI ISA etc in the address range OC0000H through ODFFFFH BIOS exten sions have a pre defined header format and conta
74. ocess Resident Flash Array RFA The RFA represents flash memory that is resident on the hardware platform that is utilized for OS or application purposes Rommable DOS A special DOS designed specifically to load into and operate from semiconductor ROM Rommable DOS consumes much less memory space than DOS and because it resides in ROM boots much more quickly than DOS ROM RAM Disk A feature of the BIOS allowing the use of RAM ROM a PC card or other semiconductor memory storage devices to be accessed by the CPU like a fixed disk in the same manner as a fixed disk RS 232 A popular asynchronous bi directional serial communication protocol Among other things the RS 232 stan dard defines the interface cabling and electrical characteristics and the pin arrangement for cable connectors Row Address Strobe RAS An input signal to an internal DRAM latch register specifying the row at which to read or write data The DRAM requires a row address and a column address to define a memory address Since both parts of the address are applied at the same DRAM inputs use of row addresses and column addresses in a multiplexed array allows use of half as many pins to define an address location in a DRAM device as would otherwise be required S T Segment A section or portion of addressable memory serving to hold code data stack or other information allowing more efficient memory usage in a computer system A segment is the portion of a real mod
75. on You can also send e mail to RadiSys using the web site Requests for sales service and technical support information receive prompt response Repair Services RadiSys provides Factory Repair Service for the entire RadiSys product line Standard service for all RadiSys products covers factory repair with customers paying shipping to the factory and RadiSys paying for return shipment Overnight return shipment is available at customer expense Normal turn around time for repair and re certification is five work ing days Quick Exchange services immediate shipment of a loaner unit while the failed product is being repaired are available Negotiate these or other extra cost services in advance to allow RadiSys to pool the correct product configurations RadiSys does not maintain a general loaner pool units are available only for customers who have negotiated this service in advance RadiSys does not provide a fixed price swap out repair service Many customers indicate that issues of serial number tracking and version control make it more convenient to receive their original products back after repair Warranty Repairs RadiSys will repair at no charge products having manufacturing defects during the warranty period See the warranty information at the front of this manual Products without fault sent in for warranty repair will be subject to a recertifi cation charge Extended warranties are available at a standard price for any product s
76. ource Con The floppy disk controller has requested a re flict source that is already in use NVRAM Checksum Error NVRAM Cleared The ESCD data was reinitialized because of an NVRAM checksum error Try rerunning the ICU NVRAM Cleared By Jumper The Clear CMOS DIP switch has been moved to the ON position and CMOS RAM has been cleared NVRAM Data Invalid NVRAM Cleared Invalid entry in the ESCD Parallel Port Resource Conflict The parallel port has requested a resource that is already in use PCI Error Log is Full This message is displayed when more than 15 PCI conflict errors are detected No additional PCT errors can be logged PCT VO Port Conflict Two devices requested the same resource re sulting in a conflict PCT IRQ Conflict Two devices requested the same resource re sulting in a conflict PCI Memory Conflict Two devices requested the same resource re sulting in a conflict Primary Boot Device Not Found The designated primary boot device hard disk drive diskette drive or CD ROM drive could not be found page 76 Message Explanation Primary IDE Controller Resource The primary IDE controller has requested a re Conflict source that is already in use Primary Input Device Not Found The designated primary input device key board mouse or other if input is redirected could not be found Secondary IDE Controller Resource The
77. ow to install the Baby AT Baseboard set jumpers on the board set up the Phoenix BIOS power up the board and boot an operating system Theory of Operation Contains detailed information about the on board processor memory chipset and peripheral interfaces Connectors Provides pinout diagrams and other information about the connectors and headers on the board Troubleshooting and Error Messages Provides a list of error messages you may encounter and how to resolve error causes Support and Service Provides information about how to contact technical support engineers regard ing this product I O and Memory Maps Provides table information about system I O the memory map board inter rupts and DMA BIOS Update and Recovery Describes how to update the board s BIOS and recover from a corrupt BIOS Suspend Resume Provides in depth information about advanced power management features Glossary Defines terms used in this manual Feature Summary page 1 Intel Pentium microprocessor running at up to 200 MHz Support for up to 128 MB of DRAM installed in single in line memory modules SIMMs Tritonsystem controller data path and ISA IDE accelerator components Super I O controller AMIBIOS in a flash memory device supports system setup and PCI auto configuration Windows95 compatible Plug and Play capability e Two IDE peripheral connectors on the system board e Three dedicated PCI slots e Four dedicated ISA slots
78. ower is not al ways required by PCI add in boards Pin Name 1 GND 2 GND 3 GND 4 3 3 V 5 3 3 V 6 3 3 V Table 4 4 3 3V PCI Power Connector page 54 Diskette Drive Connector 2 34 Ss 15 33 OM03930 Pin Signal Name Signal Name 1 Ground FDHDIN 3 Ground Reserved 5 Key FDEDIN 7 Ground Index 9 Ground Motor Enable A 11 Ground Drive Select B 13 Ground Drive Select A 15 Ground Motor Enable B 17 Ground DIR 19 Ground STEP 21 Ground Write Data 23 Ground Write Gate 25 Ground Track 00 27 Ground Write Protect 29 Ground Read Data 31 Ground Side 1 Select 33 Ground Diskette Table 4 5 Diskette Drive Connector page 55 IDE Connectors The system provides two IDE peripheral connectors Be 2 20 40 _ oo 00000 l goo 00000 1 39 OM03817 Pin Signal Name Signal Name 1 Reset IDE Ground 3 Host Data 7 Host Data 8 5 Host Data 6 Host Data 9 7 Host Data 5 Host Data 10 9 Host Data 4 Host Data 11 11 Host Data 3 Host Data 12 13 Host Data 2 Host Data 13 15 Host Data 1 Host Data 14 17 Host Data 0 Host Data 15 19 Ground Key 2
79. p and fan assembly may vary from the figure above Use the figure and disussion for reference purposes if this is the case 5 Push the lever on the processor socket down and out until it pulls up freely Lift the lever until it stands straight up Figure 3 2 Remove the processor from the socket Do not touch or bend the pins 6 Place the old processor in a piece of conductive foam and store it in an antistatic package Save the pro cessor clamp and heat sink 7 Remove the upgrade processor from its antistatic package do not touch or bend the pins 8 Center the processor over the socket Take care to align the beveled edge of the processor Pin 1 as shown in Figure 3 2 A 9 With the processor in place lower it gently being careful not to bend the pins Push the lever on the socket forward until it snaps into place Figure 3 2 10 Replace any add in boards that were removed 11 If for any reason you need to reinstall the original processor do steps 1 through 10 above remember to replace the clamp that came with the original processor Follow the same procedures to upgrade a CPU chip that you follow to install the Overdrive upgrade page 37 As LI 0000000000000000 e 0000000000000000000 0000 000 6 o o OO o O fe 0000 000000000 000000000 000000000 000000000 0000000000000 0000000000000 0000000000000 0000000000000 G o O o 000000 000
80. page 36 1 Observe the precautions in Before You Begin We recommend you take the following steps to reduce the risk of electronic discharge damage to the processor and system board components e Touch the metal chassis before touching the processor or system board Keep part of your body in contact with the metal chassis to dissipate the static charge while handling the processor e Avoid moving around needlessly 2 Turn off all peripheral devices to the system and turn off the system WARNING The microprocessor and heat sink may be hot if the system has been running To avoid the possibility of a burn if the system has been running let the processor and heat sink cool for 10 minutes before go ing on with this procedure 3 Remove any add in boards that block access to the socket 4 Figure 3 1 shows the location of the processor socket You must first remove the clamp over the heat sink and CPU Insert a small flat bladed screwdriver into the slot on the end of the clamp Release the clamp by pushing outward on the blade of the screwdriver as shown in Figure 3 1 As you move the clamp away from the socket ease the clamp up and away from the processor and heat sink When you remove the clamp the heat sink will slide off the CPU CAUTION When you remove the CPU clamp avoid scraping the clamp against any system board components Figure 3 1 Removing the CPU Heat Sink and Clamp OM04035 NOTE Your heat sink clam
81. powered by a battery The battery power is low Replace the battery page 74 CMOS Checksum Invalid After CMOS RAM values are saved a check sum value is generated for error checking The previous value is different from the current value Run Setup CMOS System Options Not Set The values stored in CMOS RAM are either corrupt or nonexistent Run Setup CMOS Time and Date Not Set Run Setup to set the date and time in CMOS RAM Diskette Boot Failure The boot disk in floppy drive A is corrupt It cannot be used to boot the system Use anoth er boot disk and follow the screen instructions DMA Controller Error Error in the DMA Controller Drive Not Ready Error The BIOS cannot access the floppy drive Check all the appropriate connections after the system is powered down Error Message Explanation Floppy Disk Controller Failure The BIOS cannot communicate with the flop py disk drive controller Check all appropriate connections after the system is powered down Floppy Drive A Failure The BIOS cannot access Drive A Check all the appropriate connections after the system is powered down Floppy Drive B Failure The BIOS cannot access Drive B Check all the appropriate connections after the system is powered down Gate A20 Error Gate A20 on the keyboard controller is not working Call for service Invalid Boot Diskette The BIOS can read th
82. ptional Items Before installing other items such as drives add in boards software and a mouse connect a keyboard graphics con troller and a monitor and let the power on self test POST run Then add your drives boards system board com ponents and software Be sure to follow the warnings and cautions in this manual e Torun the BIOS Setups refer to the next section in this chapter e Chapter 5 contains Troubleshooting information If the POSTis not successful see Turning on the System at First Startup in this chapter and Problems at Initial Sys tem Start up in Chapter 5 Turning on the System at First Start up To power up the system for the first time do the following procedure 1 All system components such as a video monitor and keyboard should be connected before turning on the system All connections should be done while the system is off Make sure the power enable switch at the rear of the system is turned to 0 2 Connect the female end of the AC power cord into the AC power input socket at the rear of the system and plug the male end of the power cord into a grounded electrical outlet 3 Turn on power to the monitor 4 Flip the power enable switch at the rear of the system to the 1 position 5 Press in and release the power control button at the front of the system the green power LED on the front panel will go on If the system is equipped with a keylock ensure that it is in the unlocked po s
83. r enable switch to the 1 position 2 Press and release the power control button at the front of the system Resetting the System To reset the system from the keyboard press the key sequence SCCEL Alt Del gt You can also reset the system by shutting off system power and powering back up 1 Press and hold the front panel power control button for several seconds When you first press the button you ll hear one beep Continue holding in the button until you hear a two tone descending beep Release the button The system will power down 2 Wait at least 20 seconds 3 Press and release the front panel power control button If you moved the power enable switch at the back of the system to 0 you must move it back to the 1 position before pressing the front power con trol button 4 The system will power up and immediately begin the power on self test POST Resetting the system will e Clear the system memory e Restart the power on self test POST e Reinitialize all peripherals e Load the operating system page 89 Appendix G GLOSSARY A Access Time A factor in measurement of a memory storage device s operating speed It is the amount of time required to perform a read operation More specifically it is the period of time between which the memory receives a read command signal and the time when the requested data becomes available to the system data bus Address A number that identifies the l
84. r the number of minutes The range is 2 to 255 minutes The default is 10 minutes Hot Key Sets the hot key that when pressed while holding down the lt Ctrl gt and lt Alt gt keys causes the system to enter power managed mode All alphabetic keys are valid The system takes one minute before entering power managed mode after invoking the hot key Plug and Play Configuration Subscreen This section describes the options found on the Plug and Play configuration subscreen Configuration Mode Sets how the BIOS gets information about ISA cards that do not have Plug and Play capabilities The options are Use Setup Utility and Use ICU ISA Configuration Utility The default is Use Setup Utility If Use ICU is selected the BIOS depends on run time software to ensure that there are no conflicts between ISA boards with Plug and Play capabilities and those without Only Boot With PnP OS is visible Boot with PnP OS Enables the PC to fully utilize the features of an operating system capable of managing Plug and Play add in cards The options are None Other and Windows95 The default is Windows95 ISA Shared Memory Size Enables you to unshadow a block of the upper memory area The options are Disabled 16 KB 32 KB 48 KB 64 KB 80 KB and 96 KB The default is Disabled If this is set to Disabled the ISA Shared Memory Base Address described below will not be visible Shadowing is a technique that copies a block of memory from
85. ram assigns LPT1 378h IRQ7 as the parallel port address regardless of what is selected under the Parallel Port Address option If Configuration Mode is set to Auto this option cannot be modified Parallel Port Mode Selects the mode for the parallel port The options are Compatible Bi directional EPP and ECP The default is Com patible Compatible means the parallel port operates in AT compatible mode Bi directional means the parallel port operates in bi directional PS 2 compatible mode ECP means Extended Capabilities Port IEEE 1284 and EPP means Enhanced Parallel Port Rev 1 7 This option is not affected by the Configuration Mode field above Serial Port 1 IRQ Reports the IRQ number for serial port 1 There are no options If the Serial Port 1 Address field is set to Disabled this field is not visible Serial Port 2 IRQ Reports the IRQ number for serial port 2 There are no options If the Serial Port 2 Address field is set to Disabled this field is not visible Advanced Chipset Configuration Subscreen This section describes the options available on the Advanced Chipset Configuration Subscreen Base Memory Size Sets the size of the base memory The options are 512 KB and 640 KB The default is 640 KB If you use an ISA expansion card that is not Plug and Play compatible and the card uses memory space between 80000h 9FFFFh set this option to 512 KB page 27 ISA LFB Size Sets the size of the linear frame buff
86. rating systems And optionally you ll need one of the following mass storage devices to boot from e IDE hard disk drive w cable e Floppy disk drive w cable Supplied Equipment Each Baby AT baseboard evaluation kit includes the following e Small plastic bag of screws e CPU heatsink already mounted e This manual Optional Parts The following parts are available as options from your dealer or RadiSys page 5 e 4MB SIMM e 8 MB SIMM e 16 MB SIMM e 32 MB SIMM WARNINGS CAUTIONS Unpack The procedures in this chapter assume familiarity with the general terminology associated with personal computers and with the safety practices and regulatory compliance required for using and modifying electronic equipment Disconnect the system from its power source and from any telecommunications links net works or modems before doing any of the procedures described in this chapter Failure to dis connect power telecommunications links networks or internal modems before you open the system or do any procedures can result in personal injury or equipment damage Do not operate the system with the cover removed Always replace the cover before turning on the system The total power draw on the system must not exceed the specifications for the power supply Electrostatic discharge ESD can damage disk drives add in boards and other components Do the procedures described in this chapter only at an ESD workstation If such a station
87. ries 79 Appendix A I O Memory Maps 80 System I O Addresses 80 System I O Addresses continued 81 Memory Map 82 Board Interrupts 83 DMA 84 Appendix B BIOS Update and Recovery 86 BIOS Update 86 Using the Upgrade Utility 86 BIOS Recovery 86 Appendix C Suspend Resume 88 The Suspend Resume Option 88 Suspending and Resuming Operation 88 Turning Off and Restarting the System 88 Resetting the System 89 Appendix G GLOSSARY 90 viii Purpose Chapter 1 Introduction The purpose of this manual is to fully explain the standard software and hardware that ships with each RadiSys Long life Baby AT Baseboard The reader should be able to install this product based on the instructions provided Simple repairs and replacement of easily accessed components should also be possible About This Manual This manual assumes that the reader possesses a good working knowledge of microcomputer system architectures and peripheral devices While inexperienced users should be able to follow the instructions and perform the tasks explained here a moderate degree of competency is assumed This manual consists of the following chapters and information Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Appendix A Appendix B Appendix C Appendix G Introduction This chapter provides an overview of the Baby AT Baseboard and includes electrical and environmental specifications Getting Started Provides information about h
88. routine which a computer runs at power up Along with other testing func tions this comprehensive test initializes the system chipset and hardware resets registers and flags performs ROM checksums and checks disk drive devices and the keyboard interface Program A set of instructions a computer follows to perform specific functions relative to user need or system re quirements In a broad sense a program is also referred to as a software application which can actually con tain many related individual programs Programmable Array Logic PAL A semiconductor programmable ROM which accepts customized logic gate pro gramming to produce a desired sum of products output function R page 94 Random Access Memory RAM Memory in which the actual physical location of amemory word has no effect on how long it takes to read from or write to that location In other words the access time is the same for any address in memory Most semiconductor memories are RAM Read Only Memory ROM A broad class on semiconductor memories designed for applications where the ratio of read operations to write operations is very high Technically aROM can be written to programmed only once and this operation is normally performed at the factory Thereafter information can be read from the memory indefinitely Real Mode The operational mode of Intelx86 CPUs that uses a segmented offset memory addressing method These CPUs can address 1 MB of memory usi
89. s brings up the Floppy Options menu Hard Disk C D E F Reports if an IDE hard disk is connected to the system When selected this brings up the Hard Disk Configuration subscreen Language Specifies the language of the text strings used in the Setup program and the BIOS The default is English Boot Options Displays the Boot Options subscreen Video Mode Reports the video mode There are no options Mouse Reports if a mouse is installed There are no options Base Memory Reports the amount of base memory There are no options Extended Memory Reports the amount of extended memory There are no options page 21 BIOS Version Reports the version number reported by the BIOS There are no options Floppy Options Subscreen Floppy A Reports if a diskette drive is installed in the system as Floppy A There are no options Floppy B Reports if a diskette drive is installed in the system as Floppy B There are no options Floppy A Type Specifies the physical size and capacity of the Floppy A diskette drive The options are Disabled 360 KB 5 25 inch 1 2 MB 5 25 inch 720 KB 3 5 inch 1 44 1 25 MB 3 5 inch 2 88 MB 3 5 inch The default is 1 44 1 25 MB 3 5 inch Floppy B Type Specifies the physical size and capacity of the Floppy B diskette drive The options are Disabled 360 KB 5 25 inch 1 2 MB 5 25 inch 720 KB 3 5 inch 1 44 1 25 MB 3 5 inch 2 88 MB 3 5 inch The default is Disable
90. sage that looks similar to the following Error Message Line 1 Error Message Line 2 Press lt F1 gt for Setup lt Esc gt to Boot You can note the error and press lt Esc gt to resume the boot up process or lt F1 gt to enter Setup c Errors that prevent the boot process from continuing fatal errors are communicated by a series of audible beeps If this type of error occurs refer to the error codes and messages listed at the end of this chapter 7 Confirm that the operating system has loaded Problems at Initial System Start up Problems that occur at initial start up are usually caused by incorrect installation or configuration Hardware failure is a less frequent cause ___ Are all cables correctly connected and secured ____ Are the configuration settings correct in Setup _ Are all drivers properly installed ___ Are switches and jumpers on the system board correct if changed from the default settings ___ Are all jumper and switch settings on add in boards and peripheral devices set correctly For the valid settings see the documentation shipped with these devices Ensure that there are no conflicts for exam ple two add in boards sharing the same interrupt Is the power supply set to the proper input voltage See Chapter 2 ___ Are add in boards and disk drives installed correctly ____ Is there a keyboard attached ____ Is a bootable diskette installed in drive A If the system has a hard
91. spikes can occasionally cause the heads of the disk drive to contact the disk This can corrupt or destroy data files If you are experiencing voltage spikes on the power line install a surge suppressor between the power outlet and the system power cord ____ Try reseating the SIMMs Problems Running New Application Software Problems that occur when you run new application software are usually related to the software Faulty equipment is much less likely especially if other software runs correctly Go through the checklist below to see if the situation is one that may be easily corrected If the problem persists after you have checked and corrected all of these items con tact the software vendor s customer service representative Does the system meet the minimum hardware requirements for the software Refer to the software doc umentation Is the software an authorized copy Unauthorized copies often do not work Obtain an authorized copy of the software If you are running the software from a diskette is it a good copy page 70 ____ If you are running the software from a hard disk is the software correctly installed Were all necessary procedures followed and files installed Are the correct device drivers installed Are the correct video drivers installed Is the software correctly configured for the system Are you using the software correctly Problems Operating Add in Boards Problems related to add in boards are usu
92. t IRQ In ISA bus systems a microprocessor input from the control bus used by I O devices to interrupt execution of the current program and cause the microprocessor to jump to a special program called the interrupt service routine The microprocessor executes this special program which normally involves ser vicing the interrupting device When the interrupt service routine is completed the microprocessor resumes execution of the program it was working on before the interruption occurred Interrupt Service Routine ISR A program executed by the microprocessor upon receipt of an interrupt request from an I O device and containing instructions for servicing of the device J Jumper A set of male connector pins on a circuit board over which can be placed coupling devices to electrically connect pairs of the pins By electrically connecting different pins a circuit board can be configured to func tion in predictable ways to suit different applications K Kilobyte KB One thousand bytes 210 1024 bytes to be exact L Liquid Crystal Display LCD A device containing a series or matrix of liquid crystal diodes Each diode consists of a sandwich of transparent electrodes between which is a layer of liquid crystal Behind the sandwich is a reflective layer In an unpowered state light is reflected through the electrodes and liquid crystal to the re flective layer and back When current is applied to the liquid crystal its molecular str
93. t x 03E8 03EF 8 bytes Serial Port 3 03F0 03F5 6 bytes Floppy Channel 1 03F6 1 byte Primary IDE Channel Command Port 03F7 Write 1 byte Floppy Channel 1 03F7 bit 7 1 bit Floppy Disk Change 03F7 bits 6 0 7 bits Primary IDE Channel 03F8 O3FF 8 bytes On Board Serial Port 1 LPT 400h 8 bytes ECP port LPT 400h OCF8 0CFB 4 bytes PCI Configuration Address Reg OCFC OCFF 4 bytes PCI Configuration Data Reg FFOO FFO7 8 bytes IDE Bus Master Reg Only accessible after PCI configuration space is enabled Table 1 Table A 1 System I O Addresses page 81 Memory Map Address Range Address Range Decimal Hexadecimal Size Description 1024K 131072K 100000 8000000 127M Extended Memory 960K 1023K F0000 FFFFF 64K AMI System BIOS 952K 959K EE000 EFFFF 8K Flash Boot Block Avail able as UMB 948K 951K ED000 EDFFF 4K ECSD Plug and Play con figuration area 944 947K EC000 ECFFF 4K OEM LOGO available as UMB 896K 943K E0000 EBFFF 48K BIOS RESERVED Cur rently available as UMB 800 895K C8000 DFFFF 96K Available HI DOS memory open to ISA and PCI bus 640K 799K A0000 C7FFF 160K Available HI DOS Memory normally reserved for vid eo 639K 9FC00 9FFFF 1K Extended BIOS Data moveable by QEMM 386MAX 512K 638K 80000 9FBFF 127K Extended conventional OK S11K 00000 7FFFF 512K Conventional page 82 Table 2 Table A 2 Memory Map Board Interrupts page 83 Interrupt System Resource Request NMI Parity error
94. te To suspend system operation do one of the following e Press and immediately release the front panel power control button You will hear one beep e Press a user defined keyboard hot key sequence the Hot Key option in the Power Management Config uration Subscreen described in Chapter 2 e Wait until the Inactivity Timer automatically switches the system into suspended mode the Inactivity Timer option in the Power Management Configuration Subscreen described in Chapter 2 To resume system operation do one of the following e Press and immediately release the front panel power control button You will hear one beep e Press any key on the keyboard e Move or click the mouse configurable via Power Management Turning Off and Restarting the System There are two methods for shutting down system power page 88 To shut down system power with the power control button 1 Press and hold the front panel power control button for several seconds When you first press the button you ll hear one beep Continue holding in the button until you hear a two tone descending beep Release the button The system will power down 2 When you want to turn the power on again press and release the power control button You can also shut down system power by moving the power enable switch at the rear of the system to the 0 position To turn on power after you have moved the rear power enable switch to 0 do the following 1 Flip the powe
95. te of the Num Lock feature on your keyboard The options are On and Off The default is Off Setup Prompt Turns on or off the Press lt F1 gt Key if you want to run Setup prompt during the power up sequence The options are Enabled and Disabled The default is Enabled gt Note This option has no effect on your ability to access the Setup program It only toggles the prompt Hard Disk Pre Delay Sets the hard disk drive pre delay The options are Disabled 1 2 3 4 5 6 or 7 seconds The default is 3 seconds When enabled this option causes the BIOS to wait the specified time before it accesses the first hard drive If your page 24 system contains a hard drive and you don t see the drive type displayed during boot up the hard drive may need more time before it is able to communicate with the controller Setting a pre delay provides additional time for the hard drive to initialize If your hard drive type displays on time you may be able to disable this option in order to boot faster Typematic Rate Programming Sets the typematic rates The options are Default and Override The default is 250 millisecond delay and 6 characters per second Choosing Override displays prompts for Typematic Rate Delay and Typematic Rate Typematic Rate Delay Sets how long it takes for the key repeat function to start when you hold down a key on the keyboard The options are 250 500 750 and 1000 millisecond delays The default is 250 If
96. th the 75 90 100 120 133 166 or 200 MHz Intel Pentium microprocessor The Pentium processor in addition to its expanded data and addressing capabilities includes the following features e Ready for next generation OverDrive processor e Backward compatibility with Intel microprocessor architecture Onchip numeric coprocessor compatible with the Intel486 DX processor and compliant with ANSI IEEE standard 754 1985 Onchip 16 KB cache 8 KB for data 8 KB for code e Burst mode bus cycles Upgrading the Processor This section tells how to install an OverDrive processor upgrade in your system Be sure to read the Clearance Re quirements section below before installing a processor upgrade in your system D CAUTION You do not need to change any jumpers to install an OverDrive processor upgrade Clearance Requirements The OverDrive processor comes with a heat sink mounted on top To maintain proper airflow once the upgrade is installed in the system the processor and heat sink require certain clearances Table 1 shows the required clearances page 34 Location Minimum Tlearance Clearance above the top of the OverDrive proces 0 4 inches sor s heat sink Clearance on at least 3 of the 4 sides of the upgrade 0 2 inches processor Table 3 1 Clearances for OverDrive Processor Upgrades Internal CPU Bus clock Speed J1 The internal CPU speed is controlled by changing the jumpers on
97. ther Can change all op Can change all op None tions tions page 30 Administrative Can change all op Can change a limited None only tions number of options User only N A Can change all options User Both Can change all op Can change a limited Administrative or User tions number of options If no password is set any user can change all Setup options Security Screen Options User Password is Reports if there is a User password set There are no options Administrative Password is Reports if there is an Administrative password set There are no options Set User Password Sets the User password The password can be up to seven alphanumeric characters Set Administrative Password Sets the Administrative password The password can be up to seven alphanumeric characters Unattended Start Controls when the security password is requested The options are Enabled and Disabled The default is Disabled The User password must be enabled before you can enable this option If Enabled is selected the system boots but the keyboard will be locked until the User password is entered Security Hot Key CTRL ALT Sets a hot key that when pressed locks the keyboard until the User password is entered The Keyboard LEDs flash to indicate that the keyboard is locked When you enter the User password you do not have to press the lt Enter gt key Exit Screen This section describes the different ways to exit and save or not save cha
98. till under original warranty Radi Sys will gladly quote prices for extended warranties on products with lapsed original warranties contact the factory if this applies page 78 Customer induced damage resulting from misuse abuse or exceeding the product specifications is not covered by warranty Non Warranty Services There are several classes of non warranty service These include repair of customer induced problems repairs of fail ures for products outside the warranty period recertification functional testing of a product either in or out of war ranty and procurement of spare parts All non warranty repairs are subject to service charges RadiSys has determined that pricing repairs based on time and materials is more cost effective for the customer than a flat rate repair charge RadiSys analyzes the product after it is received When instructed to do so RadiSys informs the customer of repair costs for authorization After the customer authorizes repairs and makes billing arrangements RadiSys repairs the product and returns it to the customer RadiSys provides a recertification service for products either in or out of warranty This service verifies correct oper ation of a product by inspecting and testing the product using standard manufacturing tests There is a product depen dent charge for recertification Generally very few components are field repairable However since RadiSys understands that some customers want or n
99. ting system to boot The boot device must be the first in the boot sequence Byte A group of 8 bits C Central Processing Unit CPU A semiconductor device which performs the processing of data in a computer The CPU also referred to as the microprocessor consists of an arithmetic logic unit to perform the data process ing and a control unit which provides timing and control signals necessary to execute instructions in a pro gram Chipset One or more integrated circuits that along with a CPU memory and other peripherals implements an IBM PC AT compatible computer The chipset typically implements aDRAM controller bus interface logic and PC peripheral devices Complimentary Hi performance Metal Oxide Semiconductor CHMOS A proprietary CMOS technology used by Intel Corporation in the 336EX CPU and other Intel microprocessor ICs Column Address Strobe CAS An input signal from the DRAM controller to an internal DRAM latch register spec ifying the column at which to read or write data The DRAM requires a column address and a row address to define a memory address Since both parts of the address are applied at the same DRAM inputs use of column addresses and row addresses in a multiplexed array allows use of half as many pins to define an address lo cation ina DRAM device as would otherwise be required COM Port A bi directional serial communication port which implements the RS 232 specification Complimentary Metal Oxide
100. tion to restore normal operation Replace the system cover and turn power back on How to Clear the Password This procedure should only be done if the user password has been forgotten page 10 1 2 Turn off power and remove the system cover Move switch 3 to the ON position Turn on power and allow the system to boot Turn off power Move switch 3 back to the OFF position to restore normal operation Replace the system cover and turn the power back on How to Set the ISA Bus Clock Speed Switch Switch 1 Depending on the speed of the CPU in your system the default setting for the ISA bus clock switch ranges from 7 5 MHz to 8 33 MHz You may be able to improve the performance of some ISA add in boards by speeding up the ISA bus clock speed However keep in mind that some ISA add in boards may have problems operating above the ISA bus clock standard of 8 MHz If you change switch 1 to ON and experience operating problems with ISA boards you may want to move the switch back to the OFF position below shows how the two settings for switch 1 affect the ISA bus clock speed for different CPUs PCI ISA Bus Clock Speed CPU Speed PCI Switch 1 OFF Switch 1 ON speed default setting TS MHZ ZS MHZ 8 33 MHZ S33MHzZ 90 MHz 30 MHz 10 0 MHz 7 50 MHz 100 MHz 33 MHz 11 0 MHz 8 33 MHz 120 MHz 30 MHz 10 0 MHz 7 50 MHz 133 MHz 33 MHz 11 0 MHz 8 33 MHz 150 MHz 30 MHz 10 0 MHz 7 50 MHz 166 MHz 33 MHz 11 0 MHz 8 33 MHz
101. ucture changes in such a way as to prevent light from passing back from the reflective layer Logical Address The memory mapped location of a segment after application of the address offset to the physical address Logical Block Addressing LBA A method the system BIOS uses to reference hard disk data as logical blocks with each block having a specific location on the disk LBA differs from the CHS reference method in that the BIOS requires no information relating to disk cylinders heads or sectors LBA can be used only on hard disk page 93 drives designed to support it M N Megabyte MB One million bytes 27 1 048 576 bytes to be exact Memory A designated system area to which data can be stored and from which data can be retrieved A typical com puter system has more than one memory area See Conventional Memory and Extended Memory O Offset The difference in location of memory mapped data between the physical address and the logical address Operating System See Disk Operating System P Q Peripheral Connect Interface PCI A popular microcomputer bus architecture standard Peripheral Device An external device connected to the system for the purpose of transferring data into or out of the system Personal Computer Advanced Technology PC AT A popular computer design first introduced by IBM in the ear ly 1980s Personal Computer Memory AT Attachment PCM ATA A popular standard for interfacing flash memory cards
102. upport The Setup information is stored in CMOS random access memory RAM and is backed up by a battery when power to the system is off If the system does not operate as described here see the section Solving Problems for problem descriptions and error messages If you want to go into the Setup program press the lt F1 gt key after the POST starts the memory test but before the system boots up You have about five seconds to press lt F1 gt to enter Setup before the boot process continues Make a Record of the Setup Configuration To make sure you have a reference to the Setup values for your system we recommend you write down the current settings and keep this record up to date For example there are blank NOTES pages at the end of several chapters in this book Overview of the Setup Menu Screens The Setup program initially displays the Main menu screen In each screen there are options for modifying the system configuration Select a menu screen by pressing the left lt lt gt or right lt gt arrow keys Use the up lt T gt or down lt 4 gt arrow keys to select items in a screen Use the lt Enter gt key to select an item for modification For certain items press ing lt Enter gt will bring up a subscreen After you have selected an item use the arrow keys to modify the setting page 19 Setup Menu Screen Main Advanced Security Exit Setup Subscreen Floppy Options Hard Disk Configuration Boot Options
103. ure 3 3 D If the SIMM does not install correctly gently spread the retaining clips just enough so that you can pull away the top edge of the SIMM and try again Reinstall and reconnect any parts you removed or disconnected to gain access to the SIMM sockets OM04034 Figure 3 3 SIMM Installion Removing SIMMs To remove a SIMM do the following page 41 1 2 Observe the precautions in Before You Begin Turn off all peripheral devices connected to the system Turn off the system Remove any full length add in boards or other components as needed to gain access to the sockets Gently spread the retaining clips just enough so you can rotate the top edge of the module upward until the module is loose in the socket Figure 3 3 D Holding the module only by the edges lift it away from the socket and store it in an antistatic package 7 Reinstall and reconnect any parts you removed or disconnected to gain access to the SIMM sockets Cache Memory The Pentium microprocessor includes 16 KB of cache on the chip The core chip set includes a cache controller that supports secondary write back cache memory The system board provides eight secondary ca
104. y Modules SIMMs 38 Removing SIMMs 41 Cache Memory 42 Installing Cache and Tag Memory 42 Enhanced IDE Peripheral Interface 44 System I O 45 System BIOS 45 BIOS Upgrades 45 Plug and Play 46 Expansion Slots 46 Power Management 46 Turning the System Off 46 Resetting the System 46 System Security 47 Keyboard Mouse Controller 47 Battery 47 Replacing the Battery 47 Instructions 48 Chapter 4 Connectors 50 Parallel Connector 51 Serial Connectors 52 Primary Power Connector 53 3 3 V PCI Power Connector 54 Diskette Drive Connector 55 IDE Connectors 56 Turbo Connector 57 Hard Disk Drive LED Connector 58 Keylock Power LED Connector 59 Reset Connector 60 Sleep Resume Connector 61 Infra red Connector 62 12 Volt Fan Power Connector 63 Speaker Connector 64 ISA Connector 65 PCI Connector 66 Chapter 5 Troubleshooting amp Error Messages 68 Troubleshooting 68 Troubleshooting Procedure 68 Problems at Initial System Start up 69 Problems After the System Has Been Running Correctly 70 Problems Running New Application Software 70 Problems Operating Add in Boards 71 Problems and Suggestions 71 Error and Information Messages 73 Vil Beep Codes 73 Error and Information Messages 74 PCI Configuration Status and Error Messages 76 Resetting the System 77 Chapter 6 Support and Service 78 In North America 78 Technical Support 78 World Wide Web 78 Repair Services 78 Warranty Repairs 78 Non Warranty Services 79 Arranging Service 79 Other Count
105. ystem from continuing the boot process it generates a series of beeps A specific number of beeps indicates a certain error message Record the number of beeps See Chapter 5 for a description of the system beep codes and trou bleshooting procedures If the POST finds a non fatal error an error that doesn t stop the boot process from continuing the system displays a message in the following format Error Message Line 1 Error Message Line 2 Press lt F1 gt for Setup lt Esc gt to Boot Locate the error message in Chapter 5 and take action as indicated under the explanation for the error message If needed run the Setup program If you need to reconfigure the system setup start the Setup program To enter Setup press the lt F1 gt key after the POST starts the memory test but before the system boots up You have about five seconds to press lt F1 gt to enter Setup before the boot process con tinues If you need to begin again reboot the system Press lt Ctrl Alt Del gt Table 2 4 Problems During First Power Up Using Keyboard Shortcuts The keyboard controller supports using shortcuts to reset the system soft boot and toggle between fast turbo and slow CPU speed Normally the CPU runs in fast turbo mode at its full rated speed Some application software require that you run the system in slow mode Using shortcuts to change to fast mode may not be supported by some systems or by some applications
106. yttes kun batteri som anbefalt av apparatfabrikanten Brukt batteri returneres apparatleverandgren VARNING Explosionsfara vid felaktigt batteribyte Anv nd samma batterityp eller en ekvivalent typ som rekommen deras av apparattillverkaren Kassera anv nt batteri enligt fabrikantens instruktion VAROITUS Paristo voi r j ht jos se on virheellisesti asennettu Vaihda paristo ainoastaan laitevalmistajan suosit telemaan tyyppiin H vit k jtetty paristo valmistajan ohjeiden mukaisesti Instructions To replace the battery do the following page 48 1 Observe the precautions in Before You Begin 2 Turn off all peripheral devices connected to the system 3 Turn off the system 4 Remove any components that are blocking access to the battery 5 Figure 3 5 shows the battery location on the system board Gently pry the battery free from its socket taking care to note the and orientation of the battery Figure 3 5 6 Install the new battery in the socket 7 Replace any system parts that were previously removed 8 Run Setup to reset the date and time OM03774 Figure 3 5 Replacing the Battery page 49 Chapter 4 Connectors This chapter describes the connectors on the RadiSys Long life Baby AT baseboard These connectors adhere to ex isting standards This chapter shows illustrations of each connector with pins oriented as they appear when viewing the front of the connector

Chapter 4 - Connectors

Contents

Download Pdf Manuals

Related Search

Related Contents