GA - 486VS / 486VF
Contents
1. 12 ints ned wd 12 Su MAINBOARD 13 3 3 QUICK REFERENCE FOR JUMPERS 8 CONNECTORS 14 34 DRAM INSTALLAT ON 22 de vocc ir eco eee ie ds 17 3 5 SRAM INSTALLATION AND JUMPERS 5 19 3 6 CPU INSTALLATION AND JUMPERS SETUP 20 S A EXT POWER CONTROL 21 3 8 CMOS BATTERY JUMPER 21 3 9 SPEAKER CONNECTOR INSTALLATION 22 3 10 POWER LED amp KEY LOCK CONNECTOR INSTALLATION 22 3 11 TURBO SWITCH CONNECTOR INSTALLATION 23 3 12 TURBO LED CONNECTOR 23 3 13 HARDWARE RESET SWITCH CONNECTOR INSTALLATION 23 3 14 GREEN FUNCTION INSTALLATION 23 3 15 PERIPHERAL DEVICE INSTALLATION 24 BIOS GONEIGURATIODN im tense rau neos rr ine Ree 25 AL ENTERING SETUP CER I 25 4 2 CONTROL KEY S honed 25 obtener eben 26 4 3 1 Matti e bog tec ed b cer ex cvi2. 26 4 3 2 Status Page Setup Menu Option Page Setup Menu 26 ZA THE MAIN MENU a ater e Do p gi rra e 27 4 5 STANDARD CMOS 2 225 6 rn noinen anna n na ta eri 28 4 5 BIOS FEATURES SETUP iiti bM 33 4 7 GHIPSET FEATURES 36 t This options is valued from BIOS Date Code 03 25 94 39 4 8 POWER MANAGEMENT 39 AS COAG BIOS DEFAULTS utate t ct ia deae t be cts 41 4 10 LOAD SETUP DEFAULTS rk RT 42 4 11 PASSWORD SETTING iar bu voee ecd 43 4 12 1DE HDD AUTO DETEG TION 7223 tae teca acis 44 4 13 SAVE amp EXIT SETUP ucro rr Eee hor 45 4 14 EXIT WITHOUT SAVING 2 204 444 46 486 5 4 15 KEYBOARD SETTING i 46 5 AT TECHNICAL 0008 47 5 BUS CONNECTOR PIN OUT cea ota tate 47 5 1 T ISA BUS SLOT PIN OUT eccesso tu tor tandi decas 47 5 1 2 VL BUS SLOT EINE 48 5 2 0 S MEMORY MAP gated reae 49 5 3 TIMER amp DMA CHANNELS esee 49 5 4 INTERRUPT MAP kie aed Mak 50 5 5 RTC amp CMOS RAM
3. 51 APPENDIX A POST MESSAGE ipei es 52 APPENDIX B POST ads haie die 56 APPENDIX C BIOS DEFAULT DRIVE 59 APPENDIX D PROBLEM SHEET toon bl eth peut 61 Introduction 1 INTRODUCTION 1 1 PREFACE Welcome to use the GA 486VF 486VS motherboard The motherboard is a 64 KB 512 KB CACHE 486DX PC AT compatible system with ISA bus and VESA LOCAL BUS VL Bus and has been designed to be the fastest 486 PC AT system and the GREEN FUNCTION Power Down Mode had be added There are some new features allow you to operate the system with just the performance you want This manual also explains how to install the motherboard for operation and how to set up your CMOS CONFIGURATION with BIOS SETUP program 1 2 KEY FEATURES 0 80486 based PC AT compatible mainboard with VL Bus 3 VL Bus slots Supports 486DX DX2 SX S Series OverDrive P24T DX4 running at 25 100 MHz Supports True Green Function Supports Intel AMD and Cyrix CPU Supports 237 pin Socket 3 ZIF White socket LIF socket on board D D D DO Supports 64 128 256 512 KB 2nd cache memory operated in BURST mode Write Back cache operation 0 Supports 1 128 MB DRAM memory on board 0 Supports 256 KB DRAM re map function GA 486VF VS Q
4. ue mu 51 9 rl Micropolis1325 17 98 ee Maxtor 170 33 43MB 1024 5 17 14 14 10MB 2 2 7 128 612 35 77MB 1944 9 17 6555 104 38 68MB 1024 8 17 52 14 37 4 8 615 8 17 128 5 25 11887 3 dz 972 40 41MB 820 6 17 820 8200 SeagateST251 Miniscribe3053 6053 Miniscribe3053 6053 ALL 59 486 5 43 Miniscribe 3650 44 69 MB 65535 Miniscribe 3650 RLL 45 65535 Conner CP3104 46 65535 Conner CP3204 60 Appendix D Problem Sheet APPENDIX D PROBLEM SHEET 1 Customer Data Name Tel No Address Fax No Purchase Date 2 Mainboard Data Model No GA Rev No Serial No 3 System Configuration CPU Type CPU Brand CPU Speed DRAM 1 O2 4 8 16 DRAM Speed 80 70 60 ns DRAM Total Size MB DRAM Brand SRAM Size 64 KB 128KB 256KB 512KB SRAM Part No TAG DATA Video Card Video Chip or Brand Floppy Drive A Capacity amp Brand Floppy Drive B Capacity amp Brand Storage Controller Type MFM RLL IDE ESDI Hard Drive C Brand amp Type Hard Drive D Brand amp Type LAN Controller Type LAN Card Brand amp Model Serial Parallel Chip Brand amp Model Mouse Brand amp Model 32 MB Q SCSI 5 DOS 05 2 NETWARE UNIX vER 4 AUTOEXEC BAT 8 CONFIG SYS File 5 Problem D
5. SPEED 25 33 40 50 MHz system and VL Bus speed 8MHz programmable Bus speed H W and S W speed switchable function cache or non cache B GREEN FUNCTION Power Down Timer from 10 sec to 10 mins When enter Power Down Mode 8 MHz system speed for non S Series and 0 MHz system speed for S Series Ext Power Control Port for Monitor Power ON OFF Support IDE Hard Disk Standby Mode control Wake Up by all IRQ and DMA Local Bus Master and Device Cannel Support Green LED Indicator and Green Switch DRAM MEMORY 2 banks 30 pins SIMM module sockets on board for 486VF 8 banks 72 pins SIMM module sockets on board for 486 5 Use 256 KB 1 4 16 MB 70 ns SIMM module DRAM for 486VF Use 256 1 2 4 8 16 32 70 ns SIMM module DRAM for 486VS Support Fast Page DRAM access mode B CACHE MEMORY 8KB cache memory included in 80486 DX SX 16 KB cache memory included in DX4 64 128 256 512 KB 2 cache memory on board Support 486 Burst mode on 2nd cache memory access SHADOW RAM Main BIOS shadow function programmable Video BIOS shadow function programmable Shadow RAM cacheable function programmable 10 Specification B RE MAP DRAM 256 KB DRAM re locatable m O BUS SLOTS 3 VL Bus 6 AT Bus 1 XT Bus DIMENSION 2 3 Baby AT size 25 cm x 22 cm 2 2 5 m BIOS Licensed AWARD BIOS AT CMOS Setup Advanced Chipset
6. 53 GA 486VF VS KEYBOARD ERROR OR NO KEYBOARD PRESENT Cannot initialize the keyboard Make sure the keyboard is attached correctly and no keys are being pressed during the boot If you are purposely configuring the system without a keyboard set the error halt condition in Setup to HALT ON ALL BUT KEYBOARD This will cause the BIOS to ignore the missing keyboard and continue the boot D Memory Address Error at Indicates a memory address error at a specific location You can use this location along with the memory map for your system to find and replace the bad memory chips MEMORY SIZE HAS CHANGED SINCE LAST BOOT Memory has been added or removed since the last boot In EISA mode use Configuration Utility to re configure the memory configuration In ISA mode enter Setup and enter the new memory size in the memory fields Memory Verify Error at Indicates an error verifying a value already written to memory Use the location along with your system s memory map to locate the bad chip po OFFENDING ADDRESS NOT FOUND This message is used in conjunction with the CHANNEL CHECK and RAM PARITY ERROR messages when the segment that has caused the problem cannot be isolated po OFFENDING SEGMENT This message is used in conjunction with the CHANNEL CHECK and RAM PARITY ERROR messages when the segment that has caused the problem has been isolated 54 Appendix Post Message po PRESS A
7. F1 key General help only for Status Page Setup Menu and Option Page Setup Menu Change color from total 16 colors Calendar only for Status Page Setup Menu Reserved F5 key Restore the previous CMOS value from CMOS only for Option Page Setup Menu F6 key Load the default CMOS value from BIOS default table only for Option Page Setup Menu 4 3 GETTING HELP 4 3 1 Main Menu The on line description of the highlighted setup function is displayed at the bottom of the screen 4 3 2 Status Page Setup Menu Option Page Setup Menu Press F1 to pop up a small help window that describes the appropriate keys to use and the possible selections for the highlighted item To exit the Help Window press lt Esc gt 26 BIOS Configuration 4 4 THE MAIN MENU Once you enter Award BIOS CMOS Setup Utility the Main Menu Figure 1 will appear on the screen The Main Menu allows you to select from seven setup functions and two exit choices Use arrow keys to select among the items and press Enter to accept or enter the sub menu Figure 1 Main Menu ROM ISA BIOS 2C4I8G01 CMOS SETUP UTILITY AWARD SOFTWARE INC STANDARD CMOS SETUP PASSWORD SETTING BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP SAVE amp EXIT SETUP POWER MANAGEMENT SETUP EXIT WITHOUT SAVING LOAD BIOS DEFAULTS LOAD SETUP DEFAULTS ESC Save amp Exit Setup aS gt e Select Item F10 Quit Shift F2 Chang Color Time Date
8. JP4 SRAM Size Setup Jumpers JP OFF ON ON ON B Jp2 OFF OFF ON ON ON OFF OFF OFF OFF wa 12 28 12 12 Using 64 KB x 8 SRAM from U1 to 04 JP11 AMD CPU Selection Jumper 1 2 Close for Non AMD CPU Selection Open for AMD CPU Selection JP18 Cyrix CPU Selection For Cyrix CPU installed JP20 Delay CPU Clock For some VL Bus interface card that need more address hold time in DX4 100 DX4 75 DX2 50 If you don t have any problem please always keep the jumper pin 2 3 short 1 2 Close for normal operation GA 486VF VS 9 JP21 Cyrix amp P24D CPU Selection Cyrix CPU P24D P24D is suppored from PCB REV 8A amp BIOS July 12 1994 or later 1 2 Others This option is valued from Rev 6 JP24 DX4 amp Cyrix amp P24D CPU Selection Open for DX4 CPU x 3 Close for DX4 CPU x 2 Close for Cyrix CPU This option is valued from Rev 6 2 5 Close for P24D P24D is suppored from PCB REV 8A amp BIOS July 12 1994 or later 9 JP36 JP37 CPU Voltage Selection JP36 JP37 For 5 Voltage CPU For 3 3 Voltage DX4 CPU 5 JP7 Clock Generator Frequency Setup Close for Normal Operation 2 3 Close for Not Supplying Power to CMOS Clear JP29 VL Bus Speed Configuration For DX 50 40 MHz JP29
9. 0 Supports shadow RAM for BIOS 8 VIDEO BIOS Supports shadow RAM cacheable function to improve performance Supports H W amp S W speed change function Licensed AWARD BIOS Ni HY Rechargeable battery on board Lf b Y C size 22 cm x 25 cm with 6 AT slots 1 XT slot Introduction 1 3 PERFORMANCE LIST The following performance data list is the testing results of some popular benchmark testing programs These data are just referred by users and there is no responsibility for different testing data values gotten by users The different H W amp S W configuration will result in different benchmark testing results CPU Intel 486DX4 100 DX4 75 DX2 66 50 DX 50 33 AMD486DX 40 DRAM 8 MB 70 ns DISPLAY GA 302 53 805 GUI VGA H D D GA 403 VL Bus SCSI 5 MS DOS 6 2 CACHE SIZE 256 KB LandMark 1 14 20 200 200 200 20 CPU 11 71980 1584 1485 ee M 17 CPU LandMark 20 S 70o cPU 1 0 1080 864 1080 720 17 CPU GA 486VF VS 1 4 BLOCK DIAGRAM 21 41 1 20 80486 VESA Local Bus E 85 471 Clock Buffer 85 407 BIOS ROM Memory DRAM saco 15 1 evm 5 1 5 INTRODUCE THE VL BUS Connecting devices to a CPU local bus can dramatically increase the speed of l O b
10. Hard Disk Type Standard CMOS setup This setup page includes all the items in a standard compatible BIOS BIOS features setup This setup page includes all the items of Award special enhanced features Chipset features setup This setup page includes all the items of chipset special features 27 GA 486VF VS Power Management Setup This setup page includes all the item of power management features Load BIOS Defaults BIOS defaults indicates the most appropriate value of the system parameter which the system would be on more safety operation Load SETUP Defaults SETUP defaults indicates the most appropriate value of the system parameter which the system would be in maximum performance Password setting Change set or disable password It allows you to limit access to the system and Setup or just to Setup IDE HDD auto detection Automatically configure hard disk parameter Save amp exit setup Save CMOS value changes to CMOS and exit setup Exit without save Abandon all CMOS value changes and exit setup 4 5 STANDARD CMOS SETUP MENU The items in Standard CMOS Setup Menu Figure 2 are divided into 9 categories Each category includes no one or more than one setup items Use the arrows to highlight the item and then use the lt PgUp gt or lt PgDn gt keys to select the value you want in each item 28 BIOS Configuration Figure 2 Standard CMOS Setup Menu ROM
11. The mounting hole pattern on the mainboard matches the IBM XT system board It is assumed that the chassis is designed for a standard IBM XT AT mainboard mounting Place the chassis on the anti static mat and remove the cover Take the plastic clips Nylon stand off and screws for mounting the system board and keep them separate 3 2 MAINBOARD LAYOUT lt GA 486VS gt P24T C 486DX SX J Fes 0 718 85 471 486 5 8 SRAM SRAM BANKI BANKO 8 32 128KBX8 8 32 128 8 24 486DX SX ipsa 1 P20 85 471 486 8 SRAM BANKO 8 32 128KBX8 8 32 128KBX8 13 BANKO SIMM2 BANKO SIMM3 BANKI SIMMS _ BANKI 5 6 Hardware Installation GA 486VF VS 3 3 QUICK REFERENCE FOR JUMPERS amp CONNECTORS 5 5 4 J7 Power LED 8 Key Lock Connector 4 LED Cathode 4 9 J6 Reset Connector For Normal Operation For Hardware Reset System J4 TURBO LED Connector LED Anode LED Cathode J3 TURBO Switch Connector 3 For High Speed For Low Speed 1 3 Speed 9 J1 External Battery Connector 1 Keyboard Connector Hardware Installation _ 9 C5V JP1
12. 25 MHz or 33 MHz system 40 MHz 50 MHz or one bank cache installed system e gt e Q e E w c For 25 MHz or 33 MHz system For 40 MHz 50 MHz system Slow Refresh The default value is Disabled Enabled Enable Slow Refresh function Disabled Disable Slow Refresh function 37 GA 486VF VS Hidden Refresh The default value is Enabled Enabled Enable Hidden Refresh function Disabled Disable Hidden Refresh function External Cache WB WT The default value is Write Back Write Thru Using write through for the configuration of external cache Write Back Using write back for the configuration of external cache Internal Cache WB WT The default value is Write Through Using write through for the configuration of CPU internal cache Using write back for the configuration of CPU internal cache System Shadow The default value is Cacheable Cacheable Cache and Shadow system BIOS Non cacheable Shadow system BIOS only video Shadow The default value is Cacheable Cacheable Cache and Shadow video BIOS Non cacheable Shadow video BIOS only 38 BIOS Configuration Memory Hole Size System doesn t assign any memory below 16 MB to AT Bus System assign 1 MB memory size below 16 MB to AT Bus System assign 2 MB memory size below 16 MB to AT Bus System assign 4 MB memory size below 16 MB to AT Bus 256KB Remap Fu
13. Information 5 AT TECHNICAL INFORMATION 5 1 0 BUS CONNECTOR PIN OUT 5 1 1 ISA BUS SLOT PIN OUT 47 GA 486VF VS 5 1 2 VL BUS SLOT PIN OUT 4 DATO06 8 GND DATIO DATI 14 DATI6 DAT18 DAT20 GND DAT2 DAT24 DAT26 DAT28 DAT30 GND ADR29 ADR27 25 ADR23 ADR21 ADR19 VCC 17 ADRIS VCC ADR13 ADRII ADRO9 ADROS VCC NIC RESET D C W R RDYRTN GND IRQS BRDY BLAST IDO GND LCL BS 16 B01 A01 B02 A02 B03 A03 B04 A04 B05 A05 B06 A06 B07 A07 B08 A08 B09 A09 10 10 12 12 B13A13 B14A14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 B22 22 23 23 B24 A24 B25 25 B26 A26 B27 A27 B28 A28 B29 A29 B30 A30 2 32 B33 A33 B34 A34 B35 35 B36 A36 B37 A37 B38 A38 B39 A39 B40 A40 41 41 B42 A42 B43 A43 B44 A44 B45 A45 B48 A48 B49 A49 50 50 51 51 B52 A52 B53 53 B54 54 B55 55 B56 A56 B57 57 B58 58 DATOI GND 5 7 9 11 DAT13 DAT15 GND DAT17 VCC 9 DAT21 DAT23 DAT25 GND DAT27 DAT29 DAT31 ADR30 ADR28 ADR26 GND ADR24 ADR22 20 ADRIS ADRI6 ADR14 ADRI2 ADRIO ADROS GND 06 04 WBACK BEO VCC BE l BE2 GND BE3 ADS R
14. KEY TO REBOOT This will be displayed at the bottom screen when an error occurs that requires you to reboot Press any key and the system will reboot po PRESS F1 TO DISABLE NMI F2 TO REBOOT When BIOS detects a Non maskable Interrupt condition during boot this will allow you to disable the NMI and continue to boot or you can reboot the system will the NMI enabled po SYSTEM HALTED CTRL ALT DEL TO REBOOT Indicates the present boot attempt has been aborted and the system must be rebooted Press and hold down the CTRL and ALT keys and press DEL 55 GA 486VF VS APPENDIX B POST CODES ISA POST codes are typically output to port address 80h POST CO Turn Off Chipset OEM Specific Cache control Cache 1 Processor Test 1 Processor Status 1 FLAGS Verification Test the following processor status flags carry zero sign overflow The BIOS will set each of these flags verify they are set then turn each flag off and verify it is off 2 Processor Test 2 Read Write Verify all CPU registers except SS SP and BP with data pattern FF and 00 3 Initialize Chips Disable NMI PIE AIE UEI SQWV Disable video parity checking DMA Reset math coprocessor Clear all page registers CMOS shutdown byte Initialize timer 0 1 and 2 including set EISA timer to a known state Initialize DMA controllers 0 and 1 Initialize interrupt controllers 0 and 1 Initialize EISA extended registers RAM must be periodically ref
15. SDLC DMA Channel 2 FLOPPY DISK adapter DMA Channel 3 Available DMA Channel 4 Cascade for DMA controller 1 DMA Channel 5 Available DMA Channel 6 Available DMA Channel 7 Available 49 GA 486VF VS 5 4 INTERRUPT NMI IRQ H W Parity check error 0 System TIMER interrupt from 0 1 KEYBOARD output buffer full 2 Cascade for IRQ 8 15 3 SERIAL port 2 4 SERIAL port 1 5 PARALLEL port 2 6 FLOPPY DISK adapter 7 PARALLEL port 1 8 RTC clock 9 Available 10 Available 11 Available 12 Available 13 MATH coprocessor 14 HARD DISK adapter 15 Available 50 Technical Information 5 5 RTC amp CMOS RAM MAP RTC amp CMOS 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0 OF 10 11 12 13 14 15 16 17 18 19 2d 2E 2F 30 31 32 33 34 3F 40 7f Seconds Second alarm Minutes Minutes alarm Hours Hours alarm Day of week Day of month Month Year Status register A Status register B Status register C Status register D Diagnostic status byte Shutdown byte FLOPPY DISK drive type byte Reserve HARD DISK type byte Reserve Equipment byte Base memory low byte Base memory high byte Extension memory low byte Extension memory high byte Reserved for extension memory low byte Reserved for extension memory high byte DATE CENTURY byte INFORMATION FLAG Reserve Reserved for CHIPSET SETTING DATA 51 GA 486VF VS APPENDIX A POST MESSAGE When
16. Setup Power Management and Hard Disk Utility included O S Operation with MS DOS OS 2 NOVELL SCO UNIX 2 3 ENVIRONMENT B AMBIENT TEMP 0 to 50 C operating B RELATIVE HUM 0 to 85 operating B ALTITUDE 0 to 10 000 feet operating B VIBRATION 0 to 1 000 Hz ELECTRICITY 4 9 V to 5 2 V 3 Ato 5 Acurrent GA 486VF VS 3 HARDWARE INSTALLATION 3 1 UNPACKING The mainboard package should contain the following The GA 486VF 486VS mainboard User s manual The mainboard contains sensitive electric components which can be easily damaged by static electricity so the mainboard should be left in its original packing until it is installed Unpacking and installation should be done on a grounded anti static mat The operator should be wearing an anti static wristband grounded at the same point as the anti static mat Inspect the mainboard carton for obvious damage Shipping and handling may cause damage to your board Be sure there are no shipping and handling damages on the board before proceeding After opening the mainboard carton extract the system board and place it only on a grounded anti static surface component side up Again inspect the board for damage Press down on all of the socket IC s to make sure that they are properly seated Do this only on with the board placed on a firm flat surface 6 DO NOT APPLY POWER TO THE BOARD IF IT HAS BEEN DAMAGED You are now ready to install your maniboard
17. match with the frequency of CLOCK GEN It will cause system hanging up if the CLOCK GEN S frequency is higher than CPU s Refer to the following table to correctly install the CPU and jumpers setup 20 Hardware Installation There is a jumper JP11 to control the AMD CPU installed or not Open JP11 if an AMD CPU is installed otherwise Close this jumper JP36 and JP37 are used to select the 3 3 V or 5 V of CPU voltage If the DX4 CPU is used both jumpers are opened Otherwise both jumpers are closed The DX4 CPU has two types of internal CPU speed One is double speed and the other is triple speed If a double speed DX4 CPU is selected close JP24 jumper If a triple speed DX4 CPU is selected open JP24 jumper The CPU is a sensitive electric component and it can be easily damaged by static electricity so users must keep it away from metal surface when the CPU is installed onto mainboard When the user installs the CPU on socket please notice the PIN 1 of CPU is in the same corner as the PIN 1 of socket Before the CPU is installed the mainboard must be placed on flat plane in order to avoid being broken by the pressure of CPU installation 3 7 EXT POWER CONTROL PORT When the system enter Power Down mode timer is time out the JP33 pin 1 will change to low level from high level When system is waked up return to normal mode the pin 1 will return to high level The jumper is used to connect to the Gree
18. 4 32 36 5 4 3236 5 48 4MB x 32 36 4MB x 32 36 5 64 MB 256KB 32 36 1 32 36 5 256KB 32 36 4MB 32 36 17 256KB 32 36 16MB 32 36 5 5 IMB 32 36 5 16MB 32 36 1 32 36 5 1 32 36 5 16MB x 32 36 5 72 4MB 32 36 5 16MB x 32 36 4MB 32 36 5 4MB 32 36 5 16MB x 32 36 5 96 16MBx32 06 S 16MB 32 36 5 16 32 36 5 128 IMB 32 36 5 8MBx32 36 D 36MB 1 32 36 1MBx32 36 S 1MBx32 36 S 1MBx 32 36 S 16 MB 0 0 lt 00 00 00 0 00 0 UJ 18 Hardware Installation 1MBx32 36 S 8 32 36 0 8MBx32 6 D 68MB 1MBx32 36 S 1MBx32 36 S 8MBx32 6 D 40MB 4MB x 32 36 5 8MBx3236 D 48 4MB 32 36 5 8MBx32 36 D 8MBx32 6 D 80 4MB 32 36 5 4MB 32 36 5 8MBx32 6 D 64MB 8MBx3236 D 32 8 8 32 26 0 8MBx3236 D J 64MB 8MB x 32 36 2_ 8MBx32 36 D 8MBx32 6 D 96MB For GA 486VF gt 256KB x8 94pcs CMB IMBx8 94ps 7 4 8 4MBx8 94pes 16 8 8 94 64MB The DRAM installation position refer to MAINBOARD LAYOUT and notice the PIN 1 of SIMM module must match with the PIN 1 of SIMM socket when the DRAM SIMM module is installed Ins
19. 4 BIOS CONFIGURATION Award s BIOS ROM has a built in Setup program that allows users to modify the basic system configuration This type of information is stored in battery backed CMOS SRAM so that it retains the Setup information when the power is turned off 4 1 ENTERING SETUP Power ON the computer and press Del immediately will allow you to enter Setup The other way to enter Setup is to power on the computer when the below message appears briefly at the bottom of the screen during the POST PowerOnSelfTest press lt Del gt key or simultaneously press lt Ctrl gt lt Alt gt and lt Esc gt keys ENTER SETUP BEFORE BOOT PRESS CTRL ALT ESC OR DEL KEY If the message disappears before you respond and you still wish to enter Setup restart the system to try again by turning it OFF then ON or pressing the RESET bottom on the system case You may also restart by simultaneously press lt Ctrl gt lt Alt gt and lt Del gt keys If you do not press the keys at the correct time and the system does not boot an error message will be displayed and you will again be asked to e PRESS F1 TO CONTINUE CTRL ALT ESC OR DEL TO ENTER SETUP 4 2 CONTROL KEYS Esc key Main Menu Quit and not save changes into CMOS Status Page Setup Menu and Option Page Setup Menu Exit current page and return to Main Menu PgUp ke Increase the numeric value or make changes 25 GA 486VF VS PgDn ke Decrease the numeric value or make changes
20. BO LED on panel can indicate the current speed status of system The TURBO LED connector should be installed to J4 in correct direction 3 13 HARDWARE RESET SWITCH CONNECTOR INSTALLATION The Reset switch on panel provides users with Hardware Reset function which is almost the same as power on off The system will do a cold start after Reset switch is pushed and released by user The Reset switch is a 2 PIN connector and should be installed to J6 on mainboard 3 14 GREEN FUNCTION INSTALLATION For the purpose of power saving there are two jumpers JP34 and JP26 to 23 GA 486VF VS make sure the power saving function doing well The JP34 is a indicator green LED for green function If the green LED is ON the system is operating in green mode The JP26 is a switch to force the system get into green mode immediately 3 15 PERIPHERAL DEVICE INSTALLATION After the device installation and jumpers setup the mainboard can be mounted into the case and fixed by screw To complete the mainboard installation the peripheral device could be installed now The basic system needs a display interface card and a disk control interface card If the VL Bus device is to be installed in the system any one of three VL Bus slots can be used no matter Slave or Master VL Bus device being installed After installing the peripheral device the user should check everything again and prepare to power on the system 24 BIOS Configuration
21. DY DEV REQ GND GNT 2 D3 4 EADS 48 Technical Information 5 2 8 MEMORY MAP MEMORY MAP MAP 0000000 009FFFF 00A0000 00BFFFF 00C0000 00DFFFF 00E0000 00EFFFF 00F0000 00FFFFF 0100000 BFFFFFF 000 01F 020 021 022 023 040 05F 060 06F 070 07F 080 09F OAO OBF OCO ODF OFO OFF 1F0 1F8 278 27F 2BO 2DF 2F8 2FF 360 36F 378 37F 3B0 3BF 8CO 3CF 3D0 3DF 8FO 3F7 3F8 3FF System memory used by DOS and application program Display buffer memory for VGA EGA CGA MONOCHROME adapter Reserved for I O device BIOS ROM or RAM buffer Reserved for PCI device ROM System BIOS ROM System extension memory DMA controller Master INTERRUPT controller Master CHIPSET control registers I O ports TIMER control registers KEYBOARD interface controller 8042 RTC ports amp CMOS I O ports DMA register INTERRUPT controller Slave DMA controller Slave MATH COPROCESSOR HARD DISK controller PARALLEL port 2 GRAPHICS adapter controller SERIAL port 2 NETWORK ports PARALLEL port 1 MONOCHROME amp PRINTER adapter EGA adapter CGA adapter FLOPPY DISK controller SERIAL port 1 5 3 TIMER amp DMA CHANNELS MAP TIMER MAP DMA CHANNELS TIMER Channel 0 System timer interrupt TIMER Channel 1 DRAM REFRESH request TIMER Channel 2 SPEAKER tone generator DMA Channel 0 Available DMA Channel 1 IBM
22. EXIT SETUP POWER MANAGEM OUT SAVING LOAD BIOS DEFAU SAVE to CMOS and EXIT Y N N LOAD SETUP DEFAULTS ESC Save Exit Setup d gt Select Item F10 Quit Shift F2 Chang Color Save Data to CMOS amp Exit SETUP Type Y will quit the Setup Utility and save the user setup value to RTC CMOS SRAM Type N will return to Setup Utility 45 486 5 4 14 EXIT WITHOUT SAVING ROM ISA BIOS 20418001 CMOS SETUP UTILITY AWARD SOFTWARE INC STANDARD CMOS SETUP PASSWORD SETTING BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP SAVE amp EXIT SETUP POWER MANAGEM OUT SAVING it Wi i 9 LOAD BIOS DEFAU Quit Without Saving Y N N LOAD SETUP DEFAULTS ESC Save Exit Setup gt Select Item F10 Quit Shift F2 Chang Color Abandom all Data amp Exit SETUP Type Y will quit the Setup Utility without saving to RTC CMOS SRAM Type N will return to Setup Utility 4 15 KEYBOARD SETTING FUNCTION After booting the O S there are some special functions used by keyboard as follows CTRL ALT DEL Pressing these keys simultaneously will cause system to WARM START Soft Reset CTRL ALT Pressing these keys simultaneously will change the system speed to high speed TURBO all cache memory enable CTRL ALT Pressing these keys simultaneously will change the system speed to low speed Normal disable cache 46 Technical
23. GA 486 5 486VF USER S MANUAL GREEN SOLUTION VL Bus 486DX DX2 SX S Series OverDrive P24T DX4 Mainboard Rev 8A Eighth Edition GA 486VF VS All of the items or discription regarding DX4 CPU in this manual don t support for those motherboards without 3 3V regurator The author assumes no responsibility for any errors or omissions which may be appeared in this document nor does it make a commitment to update the information contained herein IBM PC AT PC XT are trademarks of international business machine corporation AWARD is a trademark of AWARD Software Inc MS DOS WINDOWS NT are registered trademarks of Microsoft Corporation UNIX is a trademark of Bell Laboratories Table of Contents Table of Contents INTRODUCTION xa bte date cct tae otc tog N 5 1 CUm cR DIESE L2 KEY FEATURES 5 1 3 PEREFORMANGE EIS a ean 7 1 4 BLOCK DIAGRAM terae ule 8 T 5 INTRODUGCE THE VL BUS cet ndn 8 2 9BEGIEIGATION aE ae 10 2 1 xad uta 10 22 SOFIWAR E e 11 2 2 a 11 3 HARDWARE 1
24. ISA BIOS 2 418001 STANDARD CMOS SETUP AWARD SOFTWARE INC Date mm dd yy Tri Jan 28 1994 Time hh mm ss 11 27 49 CYLS HEADS LANDZONE SECTORS Drive C 1 10Mb 306 4 128 305 17 Drive D None 0 Mb 0 0 0 0 0 Drive 1 44 M 3 5 in Drive B 1 2 M 5 25 in Base Memory Extended Memory Expanded Memory Other Memory Halt On All Errors Total Memory Video EGA VGA 41 V Select Item Modify Shift F2 Chang Color F3 Taggle Calender Date The date format is day date month year Press F3 to show the calendar day The day from Sun to Sat determined by the BIOS and is display only The date from 1 to 31 or the maximum allowed in the month The month Jan through Dec year The year from 1900 through 2099 Time The time format in hour minute second The time is calculated base on the 24 hour military time clock For example 1 p m is 13 00 00 29 GA 486VF VS Drive C type Drive D type The category identify the types of hard disk drive C or drive D that has been installed in the computer There are 46 pre defined types and a user definable type Type 1 to Type 46 are pre defined Type User is user definable Press PgUp or PgDn to select a numbered hard disk type or type the number and press Enter Note that the specifications of your drive must match with the drive table The hard di
25. R TYPES MISMATCH ERROR RUN SETUP Type of diskette drive installed in the system is different from the CMOS definition Run Setup to re configure the drive type correctly po DISPLAY SWITCH IS SET INCORRECTLY Display switch on the motherboard can be set to either monochrome or color This indicates the switch is set to a different setting than indicated in Setup Determine which setting is correct and then either turn off the system and change the jumper or enter Setup and change the VIDEO selection po DISPLAY TYPE HAS CHANGED SINCE LAST BOOT Since last powering off the system the display adapter has been changed You must configure the system for the new display type po ERROR ENCOUNTERED INITIALIZING HARD DRIVE Hard drive cannot be initialized Be sure the adapter is installed correctly and all cables are correctly and firmly attached Also be sure the correct hard drive type is selected in Setup po ERROR INITIALIZING HARD DISK CONTROLLER Cannot initialize controller Make sure the cord is correctly and firmly installed in the bus Be sure the correct hard drive type is selected in Setup Also check to see if any jumper needs to be set correctly in the hard drive po FLOPPY DISK CNTRLR ERROR OR NO CNTRLR PRESENT Cannot find or initialize the floppy drive controller Make sure the controller is installed correctly and firmly If there are no floppy drives installed be sure the Diskette Drive selection in Setup is set to NONE
26. Select Item F10 Quit Shift F2 Chang Color Load SETUP Defaults except Standard CMOS SETUP Load BIOS Defaults To load BIOS defaults value to CMOS SRAM enter Y If not enter N If there is any problem occurred loading BIOS DEFAULTS step is recommended 41 GA 486VF VS 4 10 LOAD SETUP DEFAULTS ROM ISA BIOS 2C4I8G01 CMOS SETUP UTILITY AWARD SOFTWARE INC STANDARD CMOS SETUP PASSWORD SETTING BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP SAVE amp EXIT SETUP POWER MANAGEM OUT SAVING LOAD BIOS DEFAU Load SETUP Defaults Y N N LOAD SETUP DEFAULTS ESC Save amp Exit Setup dh gt lt Select Item F10 Quit Shift F2 Chang Color Load SETUP Defaults except Standard CMOS SETUP Load Setup Defaults To load Setup defaults value to CMOS SRAM enter Y If not enter N 42 BIOS Configuration 4 11 PASSWORD SETTING When you select this function the following message will appear at the center of the screen to assist you in creating a password ENTER PASSWORD ROM ISA BIOS 2C4I8G01 CMOS SETUP UTILITY AWARD SOFTWARE INC STANDARD CMOS SETUP PASSWORD SETTING BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP SAVE amp EXIT SETUP POWER MANAGEM OUT SAVING Enter Password LOAD BIOS DEFAU LOAD SETUP DEFAULTS ESC Save amp Exit Setup as 52 SS Select Item F10 Quit Shift F2 Chang Color Change Set Disabl
27. Setup virus protect according to Setup 57 GA 486VF VS Set Boot Speed Set system speed for boot Setup NumLock Setup NumLock status according to Setup 63 Boot Attempt Set low stack Boot via INT 19h Spurious If interrupt occurs in protected mode B1 Unclaimed NMI If unmasked NMI occurs display Press F1 to disable NMI F2 reboot E1 EF Setup Pages E1 Page 1 E2 Page 2 etc SOS 58 Appendix C BIOS Default Drive Table APPENDIX C BIOS DEFAULT DRIVE TABLE Precomp Zone rp po es MMI 112 5412 3 es Je 17 so jes o 4 EE 15 47MB 1940 17 512 940 ee 262 7 31MB 482 8 17 256 51 8 30 88 1733 5 117 6555 733 TandonTM7O3 7 9 112 88 900 15 177 658 10 20MB 160 3 17 655 820 12 50 85 7 175 6555 855 S rj mpm 00 MMI 14 43 1733 7 1752 655 733 p t 3425 17 977 5 17 977 19 60 114 7 117 582 1923 20 30MB 1733 5 17 300 732 221 49MB 733 v 1030 7323 O 22 30MB 1733 5 117 130 1733 14038 23 24 54 95 7 17 0 925 574051 754 17 74 a ew pm 1 qv ee pee Priam S1 47
28. apter Video Graphics Array For EGA VGA SVGA or PGA monitor adapters CGA 40 Color Graphics Adapter power up in 40 column mode CGA 80 Color Graphics Adapter power up in 80 column mode MONO Monochrome adapter includes high resolution monochrome adapters Halt on The category determines whether the computer will stop if an error is detected during power up All errors Whenever the BIOS detects a non fatal error the system will be stopped and you will be prompted The system boot will not be stopped for any error that may be detected All The system boot will not stop for a keyboard error it will stop for all But Keyboard other errors errors all other errors Memory The category is display only which is determined by POST Power On Self Test of the BIOS Base Memory The POST of the BIOS will determine the amount of base or conventional memory installed in the system The value of the base memory is typically 512 K for systems with 512 K memory installed on the motherboard or 640 K for systems with 640 K or more memory installed on the motherboard Extended Memory The BIOS determines how much extended memory is present during the POST This is the 31 486 5 amount of memory located above 1 MB in the CPU s memory address map Expanded Memory Expanded Memory in memory defined by the Lotus Intel Microsoft LIM standard as EMS Many standard DOS applications can not utilize memory abo
29. d Video shadow is disabled 35 GA 486VF VS C8000 CFFFF Shadow 20000 DFFFF Shadow These categories determine whether optional ROM will be copied to RAM by 16K byte The default value are Disabled Enabled Optional shadow is enabled Disabled Optional shadow is disabled 4 7 CHIPSET FEATURES SETUP ROM ISA BIOS 2 418001 CHIPSET FEATURES SETUP AWARD SOFTWARE INC Auto Configuration Enabled AT Bus Clock 1 5 CLKIN DRAM Speed Faster Cache Burst Read 1W Cache Write Cycle DIW Latch Local Bus T3 Slow Refresh Disabled Hidden Refresh Enabled External Cache WB WT Write Back Internal Cache WB WT Write Thru System Shadow Cacheable Video Shadow Cacheable Memory Hole Size None 256KB Remap Function Enable ESC Quit N V lt Sedlen F1 Help PU PD 4 Modify F5 Old Values Shift F2 Color F6 Load BIOS Defaults F7 Load Setup Defaults Auto Configuration The default value is Enabled Enabled For Enable auto configuration function Disabled For Disable auto configuration function 36 BIOS Configuration Bus Clock For 25 system For 33 system For 40 system For 50 system Faster or 40 MHz or 50 MHz system Fastest or 25 or 33 system 3 lt n 5 Cache Burst Read OW For 25 MHz or 33 MHz system 1W For 40 MHz 50 MHz or one bank cache installed system Cache Write Cycle For
30. ed Password Type the password up to eight characters and press Enter The password typed now will clear and previously entered password from CMOS memory You will be asked to confirm the password Type the password again and press Enter You may also press Esc to abort the selection and not enter a password To disable password just press Enter when you are prompted to enter password message will confirm the password being disabled Once the password is disabled the system will boot and you can enter Setup freely PASSWORD DISABLED 43 486 5 If you select System at Security Option of BIOS Features Setup Menu you will be prompted for the password every time the system 18 rebooted or any time you try to enter Setup If you select Setup at Security Option of BIOS Features Setup Menu you will be prompted only when you try to enter Setup 4 12 IDE HDD AUTO DETECTION ROM ISA BIOS 20418001 CMOS SETUP UTILITY AWARD SOFTWARE INC CYLS HEAD PRECOMP LANDZONE SECTORS 202 Mb 989 12 65535 988 35 Do you accept this drive C Y N N Type Y will accept the H D D parameter reported by BIOS Type N will keep the old H D D parameter setup 44 BIOS Configuration 4 13 5 amp EXIT SETUP ROM ISA BIOS 20418001 CMOS SETUP UTILITY AWARD SOFTWARE INC STANDARD CMOS SETUP PASSWORD SETTING BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP SAVE amp
31. ert the DRAM SIMM module into the SIMM socket at 45 degree angle If there is wrong direction of PIN 1 the DRAM SIMM module couldn t be inserted into socket completely After completely insert SIMM module into socket then press the SIMM module in vertical direction until the left and right metal holders can keep the SIMM module standing up con firmly 486 5 3 5 SRAM INSTALLATION AND JUMPERS SETUP The cache memory system consists of two parts one is TAG SRAM the other is DATA SRAM The TAG SRAM type used in this mainboard is 8Kx8 16Kx8 or 32Kx8 15 ns and the DATA SRAM type is 8Kx8 15 ns 32Kx8 15 ns 64Kx8 20ns or 128Kx8 20 ns The mainboard can be installed 64 128 256 or 512 KB cache memory when using 8Kx8 or 32Kx8 type DATA SRAM separately Please refer to the following table to install cache memory system SRAM Size Data SRAM Tag SRAM IC U No 64 KB 8 KBx8 8 KB x8 All 8 PCs OFF OFF OFF 128 KB 32KBx8 8 8 01 02 93 94 256 32 8 16 32KBx8 All 8 PCs 256 KB 64KBx8 16 32KBx8 U1 U2 U3 U4 512 KB 128 8 32 8 U1 U2 U3 U4 3 6 CPU INSTALLATION AND JUMPERS SETUP The system s speed depends on the frequency of CLOCK GENERATOR The user can change the JUMPER JP5 JP7 selection to set up the system speed to 25 MHz 33 MHz 40 MHz and 50 MHz for different CPU speed The mainboard can use 80486DX DX2 SX OverDrive P24T and DX4 CPU and the CPU speed must
32. escription 61
33. is default to be closed for safety reason If your system is 33MHz or below and some of your VL BUS interface card have to monitor this jumper to identify system speed this is the only case that you have to open the jumper JP30 P24D WB WT P24D WT P24D WB Hardware Installation This option is valued from P C B REV 8A amp BIOS July 12 1994 or later J2 J8 49 Delay Local Bus Clock 3 2 For some VL Bus interface card that need more address setup time in DX4 100 DX4 75 DX2 66 DX 50 DX 40 or DX 33 42 is for VESA1 slot J8 is for VESA2 slot J9 is for VESAS slot If you don t have any problem please always keep these jumpers pin 1 2 short 9 JP26 Green Switch Open Close To get into Green mode JP34 Green LED Connector LED Anode LED Cathode JP17 Display Type Setup Jumper Close For CGA Open 3 4 DRAM INSTALLATION GA 486VF can be installed with 256 KB 1 4 or 16 MB 30 pins SIMM module DRAM and GA 486VS can be installed with 256 KB 1 2 4 8 16 or 32 MB 72 pins SIMM module DRAM The DRAM speed of both mainboard is using 70 ns The banks of memory system on GA 486VF or 486 5 consists from bank 0 to bank 1 or from bank 0 to bank 3 respectively The DRAM of bank 0 must be installed first then bank 1 The total memory size is from 1 to 128 MB and 17 GA 486VF VS various configuration of DRAM types in the followi
34. minutes to let the remain power in CMOS discharge and then close the jumper JP16 pin 1 2 or connect external battery again to let it work normally 3 9 SPEAKER CONNECTOR INSTALLATION There is always a speaker in AT system for sound purpose The 4 Pins connector J5 is used to connect speaker The speaker can work well in both direction of connector when it is installed to the connector J8 on mainboard 3 10 POWER LED amp KEY LOCK CONNECTOR INSTALLATION There are a system power LED lamp and a key on the panel of case The power 22 Hardware Installation LED will light on when system is powered on and the key can lock the keyboard input or unlock it both of them are connected to a 5 PIN connector The connector should be installed to J7 of mainboard in correct direction 3 11 TURBO SWITCH CONNECTOR INSTALLATION The TURBO switch on the panel is used for controlling the system speed Some program developed on XT should be executed with a low speed system so a high speed system needs the speed switching function to change its running speed Because a 80486 CPU cannot accept real clock speed change when program is executed so the mainboard uses cache enable or disable function to simulate TURBO switching function The 43 on mainboard should be connected to the TURBO switch on panel and user can push in or pop out the TURBO switch to enable or disable the cache function of system 3 12 TURBO LED CONNECTOR INSTALLATION The TUR
35. mory from 256 K to 640 K and extended memory Extended Memory above 1 MB using various patterns This will be skipped in EISA mode and can be skipped with ESC key in ISA mode Reserved 21 2 33 38 3C 3D Setup Enabled Initialize amp Install Detect if mouse is present initialize mouse install interrupt vectors Mouse Setup Cache Controller Initialize cache controller Reserved Chipset Initialization Program chipset registers with Setup values Display virus protest disable or enable Controller Controller Detect amp Initialize Initialize any serial and parallel ports also game port Serial Parallel Ports Reserved 111 1 Detect amp Initialize Math Initialize math coprocessor Coprocessor Reserved Reserved 48 4D Reserved 4E Manufacturing POST Reboot if Manufacturing POST Loop pin is set Otherwise display Loop or Display any messages i e any non fatal errors that were detected during Messages POST and enter Setup Security Check Ask password security optional 3E BF 21 2F 33 38 3E BF A A AIR AB Co o NIO 3 4 A 4F Write CMOS Enable NMI Enable cache before boot Initialize Option ROMs Initialize any option ROMs present from C8000h to EFFFFh When FSCAN option is enabled will initialize from C8000h to F7FFFh Initialize Time Value Initialize time value in 40h BIOS area Setup Virus Protect
36. n Function Power Supply for Monitor Power ON OFF control 3 8 CMOS BATTERY JUMPER SETUP 21 486 5 RTC 8 CMOS memories on board so they need a power supply from battery to keep the data inviolate amp effective The RTC is a Real Time Clock device which provides the Date amp Time to system The CMOS memory is used for keeping the information of system configuration so the system can automatically boot S every time There is a re chargeable battery on board also there is an external battery connector on board The user can close jumper JP16 pin 1 2 to use re chargeable battery or add an external battery to mainboard by connect it to J1 The re chargeable battery is automatically re charged when the system is powered on JP16 pin 1 2 close and provides the power when the system is powered off Before having a long distance transportation or not using system for a long time closing the jumper JP16 pin 2 3 is recommended for saving power and extending the life of re chargeable battery Due to the life time of re chargeable battery is 5 7 years the user can use external battery to replace re chargeable battery after it can not work The 6V or 4 5V external battery is recommended to be used in system For some reasons ex lost password the user can close the jumper JP16 pin 2 3 or disconnect the external battery connector to clear CMOS memory s data values After this the user must wait for a few
37. nction The default value is Enabled Enable When DRAM size is 1 2 4 5 6 or 8MB the extend memory will increase 256KB if the memory block D0000 EFFFF is not occupied by shadow function or 5 mode Disable 256KB Memory Remap function This options is valued from BIOS Date Code 03 25 94 4 8 POWER MANAGEMENT SETUP ROM ISA BIOS 2 418001 POWER MANAGEMENT SETUP AWARD SOFTWARE INC Green Function Enable PM Control by APM No Green Timer 3 Min VGA Adaptor Type Non Green HDD Power Down Disable 5 ALL O S Monitor Local Device Enable Monitor Video Action Enable Monitor IRQ5 Disable Monitor IRQ7 Disable Monitor IRQ9 Disable Monitor IRQ10 Disable Monitor IRQ12 Disable ESC Quit gt Select Item Fl Help PU PD 4 Modify F5 Old Values Shift F2 Color F6 Load BIOS Defaults F7 Load Setup Defaults Green Function Enable Green function Disable Green function 39 GA 486VF VS Green Timer Disable System s Green Timer function Enable System s Green Timer function between 10 seconds to 3 hours 3 hours HDD Power Down Enable HDD enter Power Down mode between 1 to 15 mins When Suspend The HARD DISK will be forced to Power Down when system get into Green Mode This function is valid from BIOS DATE CODE Apr 16 1994 or later If your system have any problem using some of the HARD DISKS when enable HDD Power Down function plea
38. ng table are available For GA 486VS gt Bank 0 Bank 1 Total 256KBx32 36 S 1 256KB 32 36 5 256KBx32 36 S 256 x 32 36 S 256 x 32 36 S 256KB x 32 36 5 256KB x 32 36 S 1MB 32 36 256 32 36 5 1 x 32 36 po Cd MB 4 6 MB 1MB 32 36 S 8 MB 1MB x 32 36 10 MB 256KB x 32 36 5 256KB x 32 36 S 1MB x 32 36 S 1 32 36 S 256KB x 32 36 S 256KB x 32 36 S 4MB x 32 36 S Le D 18 512KB x 32 36 D 2MB 4MB 35 y 1MB x 32 36 EE 512KB x 32 36 D 512KB x 32 36 8 n 512KB x 32 36 D 1MBx32 36 S 512 32 36 2 32 36 0 1 32 36 5 12 512KB x 32 36 D 1 x 32 36 512KB 32 36 D 4MBx32 36 S 18 512KB 32 36 D 512KB x 32 36 D 4MB 32 36 5 20 512KB x 32 36 D 24 MB 512KB x 32 36 D 36 MB 1 32 36 8 2 1MB 32 36 5 1 32 36 5 1 32 36 5 12 1 32 36 5 20 MB 1MB 32 36 5 1 32 36 5 4 32 36 5 1MB 32 36 5 4 32 36 5 4 32 36 5 36 1MB x 32 36 S 40 ee 24 2 x 32 36 D 2MB 32 36 2MBx32 36 D 16MB 2MB 32 36 2MB x 32 36 2_ 2 32 36 0 24MB 2MB x 32 36 D 32 MB 4MB 32 386 5 16 4MBx32 00 S 4MB 32 36 5 32MB 4MBx32 36 S
39. oppy Drive The default value is Disabled Enabled Floppy amp B will be swapped under DOS Disabled Floppy A amp B will be normal definition Boot Up Floppy Seek During POST BIOS will determine if the floppy disk drive installed is 40 or 80 tracks 360K type is 40 tracks while 720K 1 2M and 1 44M are all 80 tracks The default value is Enabled BIOS Configuration Enabled BIOS searches for floppy disk drive to determine if it is 40 or 80 tracks Note that BIOS can not tell from 720K 1 2M or 1 44M drive type as they are all 80 tracks Disabled BIOS will not search for the type of floppy disk drive by track number Note that there will not be any warning message if the drive installed is 360K Boot Up NumLock Status The default value is On 3 eypad is number keys Off eypad is arrow keys A IDE HDD Block Mode The default value is Disabled Enabled nable IDE HDD Block Mode Disabled isable IDE HDD Block Mode Turbo SW Function Enable The default value is Yes Change system speed by Turbo SW immediately when system boot up Change system speed by keyboard immediately when system boot up This option is valid from BIOS DATE CODE Apr 16 1994 or later video BIOS Shadow It determines whether video BIOS will be copied to RAM however it is optional from chipset design Video Shadow will increase the video speed The default value is Enabled Enabled Video shadow is enabled Disable
40. ound peripherals with only a slight increase in cost over traditional systems This price performance point has created a vast market potential for local bus products The main barrier to this market has been the lack of an accepted standard for local bus peripherals Many mainboard and chipset manufactures developed their own local bus implementations but they are incompatible with each other The Video Electronics Standards Association VESA VL Bus specification was created to end this confusion 8 Introduction The VL Bus standard under development since November 1991 is designed to bring workstation level performance to a standard PC platform The VL Bus removes many of the bottlenecks that have hampered PCs for several years On the VL Bus peripherals operate at the native speed of the computer system thus enabling data transfer between peripherals and the system at maximum speed This performance is critical for bandwidth constrained devices such as video multimedia mass storage and networking adapters VESA s VL Bus standard provides end users with a low cost extendible and portable local bus design which will allow systems and peripherals from different manufactures to work seamlessly together 486 5 2 SPECIFICATION 2 1 HARDWARE CPU 80486SX DX DX2 S Series 80487SX OverDrive P24T DX4 237 pin Socket 3 ZIF white socket LIF socket on board COPROCESSOR 803870 included in 80486DX
41. p and boot system Virus Warning This category flashes on the screen During and after the system boots up any attempt to write to the boot sector or partition table of the hard disk drive will halt the system and the following error message will appear in the mean time you can run anti virus program to locate the problem Default value is Disabled 33 GA 486VF VS Enabled Activate automatically when the system boots up causing a warning message to appear when anything attempts to access the boot sector or hard disk partition table Disabled No warning message to appear when anything attempts to access the boot sector or hard disk partition table CPU Internal Cache External Cache These two categories speed up memory access However it depends on CPU chipset design The default value is Enabled Disabled Disable cache Enabled Enable cache Quick Power On Self Test This category speeds up Power On Self Test POST after you power on the computer If it is set to Enable BIOS will shorten or skip some check items during POST The default value is Enabled Enabled Enable quick POST Disabled Normal POST Boot Sequence This category determines which drive computer searches first for the disk operating system i e DOS Default value is System will first search for floppy disk drive then hard disk drive System will first search for hard disk drive then floppy disk drive Swap Fl
42. reshed in order to keep the memory Toggle from decaying This function assures that the memory refresh function is working properly keyboard 6e Reserved and Battery Status Initialization Setup low memory Early chip set initialization Memory presence test OEM chip set routines Clear low 64 K of memory Test first 64 K memory Initialize first 120 interrupt vectors with SPURIOUS_INT HDLR and Table initialize INT OOh 1Fh according to INT TBL Checksum defaults Detect type of keyboard controller optional Set NUM LOCK status Initialize Video Detect CPU clock Interface Read CMOS location 14h to find out type of video in use Detect and Initialize Video Adapter Setup shadow RAM Enable shadow according to Setup Test DMA Controller 0 BIOS checksum test Early Cache Cyrix CPU initialization Initialization Cache initialization 56 Appendix Post Codes Keyboard detect and initialization 10 TestDMAContller1 Test DMA Page Registers registers 12 13 Reseved fs and on the interrupt lines and on the interrupt lines Interrupt Bits Functionality Parity IO Check CPU clock 1B 1E J _______ O Enable Slot 0 Initialize slot 0 System Board Enable Slots 1 15 Initialize slot 1 through 15 Size Base and Size base memory from 256 K to 640 K extended memory above 1 Extended Memory MB Test Base and Test base me
43. se disable this function Monitor Local Device Video Action IRQ5 IRQI2 The system get into green mode or not depending on the status of Local Device Video Action or IRQ5 IRQ12 Enable System will not get into green mode when Local Device Video Action or IRQ5 IRQI2 is activity System will get into green mode no matter what Local Device Video Action or IRQ5 IRQI2 is activity or not PMControlbyAPM This category can be accessed while S Series CPU installed into Green mode get into Green mode VGAAdaptorType This category can be accessed while S Series CPU installed Green BIOS will turn off H SYNC amp V SYNC when get into Green mode for Green monitor power saving BIOS will only black monitor when get into Green mode os Support Intel 5 amp AMD amp CYRIX CPU to close monitor in DOS system ALL O S don t close monitor in all O S DOS ONLYI5 use IRQIS to close monitor in DOS system only Don t select DOS ONLY15 or ONLY12 if your O S is Non DOS system For example OS 2 Unix or Novell 4 9 LOAD BIOS DEFAULTS 40 BIOS Configuration ROM ISA BIOS 2C4I8G01 CMOS SETUP UTILITY AWARD SOFTWARE INC STANDARD CMOS SETUP PASSWORD SETTING BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP SAVE amp EXIT SETUP POWER MANAGEM OUT SAVING LOAD BIOS DEFAU Load BIOS Defaults Y N N LOAD SETUP DEFAULTS ESC Save amp Exit Setup abe e
44. sk will not work properly if you enter improper information for this category If your hard disk drive type is not matched or listed you can use Type User to define your own drive type manually If you select Type User related information is asked to be entered to the following items Enter the information directly from the keyboard and press Enter Those information should be provided in the documentation form your hard disk vendor or the system manufacturer CYLS number of cylinders HEADS number of heads PRECOMP write precom LANDZONE SECTORS If a hard disk has not been installed select NONE and press Enter Drive A type Drive B type The category identify the types of floppy disk drive A or drive B that has been installed in the computer None No floppy drive installed 360K 5 25 in 5 1 4 inch PC type standard drive 360 kilobyte capacity 1 2 5 25 in 5 1 4 inch AT type high density drive 1 2 megabyte capacity 720K 3 5 in 3 1 2 inch double sided drive 720 kilobyte capacity 1 44 3 5 in 3 1 2 inch double sided drive 1 44 megabyte capacity 2 88M 3 5 in 3 1 2 inch double sided drive 2 88 megabyte capacity 30 BIOS Configuration video The category detects the type of adapter used for the primary system monitor that must matches your video display card and monitor Although secondary monitors are supported you do not have to select the type in setup EGA VGA Enhanced Graphics Ad
45. the BIOS encounters an error that requires the user to correct something either a beep code will sound or a message will be displayed in a box in the middle of the screen and the message PRESS F1 TO CONTINUE CTRL ALT ESC OR DEL TO ENTER SETUP will be shown in the information box at the bottom e POST BEEP Currently there is only one beep code in BIOS This code indicates that a video error has occurred and the BIOS cannot initialize the video screen to display any additional information This beep code consists of a single long beep followed by two short beeps e ERROR MESSAGE Once or more of the following messages may be displayed if the BIOS detects an error during the POST This list includes message for both the ISA and the EISA BIOS CMOS BATTERY HAS FAILED CMOS battery is no longer functional It should be replaced x CMOS CHECKSUM ERROR Checksum of CMOS is incorrect This can indicate that CMOS has become corrupt This error may have been caused by a weak battery Check the battery and replace if necessary po DISK BOOT FAILURE INSERT SYSTEM DISK AND PRESS ENTER No boot device was found Insert a system disk into Drive A and press lt Enter gt If you assumed the system would boot from the hard drive make sure the controller is inserted correctly and all cables are properly attached Also be sure the disk is formatted as a boot device Then reboot the system 52 Appendix Post Message po DISKETTE DRIVES O
46. ve 640K the Expanded Memory Specification EMS swaps memory which not utilized by DOS with a section or frame so these applications can access all of the system memory Memory can be swapped by EMS is usually 64K within 1 MB or memory above 1 MB depends on the chipset design Expanded memory device driver is required to use memory as Expanded Memory Other Memory This refers to the memory located in the 640K to 1024K address space This is memory that can be used for different applications DOS uses this area to load device drivers to keep as much base memory free for application programs Most use for this area is Shadow RAM 32 BIOS Configuration 4 6 BIOS FEATURES SETUP ROM ISA BIOS 2 418001 BIOS FEATURES SETUP AWARD SOFTWARE INC Security Option Setup Video BIOS Shadow Enabled Virus Warning Disabled C8000 CFFFF Shadow Disabled CPU Internal Cache Enabled D0000 D7FFF Shadow Disabled External Cache Enabled D8000 DFFFF Shadow Disabled Quick Power On Self Test Enabled Boot Sequence Swap Floppy Drive Disabled Boot Up Floppy Seek Enabled Boot NumLock Status On IDE HDD Block Mode Disabled Turbo SW Function Enable Yes ESC Quit dis gt S Select Item Fl Help PU PD 4 Modify F5 Old Values Shift F2 Color Load BIOS Defaults F7 Load Setup Defaults Security Option Asking password when enter CMOS Setup Asking password when enter CMOS Setu
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