486 WC - Elhvb.com
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1. Keyboard clock Keyboard data No connection Ground 5V JUMPER DESCRIPTION Function RTC reset Gf using DS1287A Normal default Reset Display type Mono EGA VGA default Color CPU speed Turbo switch Turbo Normal Hardware reset Normal Reset Reset CPU SELECTION 2 3 shorted 1 2 shorted 1 2 shorted JC2 2 3 shorted 1 2 shorted 1 2 shorted JC3 2 3 shorted 2 3 shorted 1 2 shorted open 2 3 shorted 1 2 shorted CPU CLOCK SELECTION M Y gt y 2 3 shorted 1 2 shorted 1 2 shorted 2 3 shorted MEMORY SYSTEM MEMORY CONFIGURATION CACHE RAM amp CONFIGURING CACHE SIZE The 486 VC Cache System board uses two jumpers to configure the cache size Dm ALTER RAM 8Kx8 8Kx8 32Kx8 TAG RAM 8 8 8 8 32 8 DATA 8Kx8 32Kx8 32Kx8 JS1 1 2 shorted 1 2 shorted P 3 shorted 152 2 shorted 2 3 shorted 2 3 shorted The 64Kbytes Direct Mapped Cache option is achieved by installing eight 8Kx8 SRAM DATA RAM in M3 M4 M5 M6 M7 M8 M9 and M10 Install one 8Kx8 SRAM TAG RAM 28 pin in M2 128Kbytes Direct Mapped Cache The 128Kbytes Direct Mapped Cache option is achieved by installing four 32Kx8 SRAM DATA RAM in M3 M4 MS and M6 Install one 8Kx8 SRAM TAG RAM 28 pin in M2 The 256Kbytes Direct Mapped Cache option is achieved by installing eight 32Kx8 SRAM DATA RAM in M32. M4 M5 M6 M7 M8 M9 and M10 Install one 32Kx8 SRAM TAG RAM 28 pin in M2 M7 M8 M9 mio MI is Alter RAM it is optional AWARD BIOS SETUP fd cm eit utero latir sa Bie SETUP SYSTEM CONFIGURATION A setup program has been built into the system BIOS so the configurations stored in the CMOS RAM can be changed This program should be executed only after 1 User has changed system configuration 2 User has changed system backup battery 3 System has detected a configuration error and has asked the user to run the setup program After power on RAM testing the message TO ENTER SETUP BEFORE BOOT PRESS CTRL ALT ESC is displayed on the screen Press CTRL ALT ESC to run setup or do nothing to bypass If the CTRL ALT ESC is pressed the following message will be displayed Shadow Security Drive C Drive D ROM ISA 486 Award Software Inc Base Memory 64K Extended Memory 3072K Expanded Memory OK Other Memory 384K Total Memory 4096 External amp Internal Boot Sequence System amp Video Virus Warning Disable CYL Head Sector Precomp Landzone 9 112Mb 900 15 17 None 901 None Mb 0 0 0 0 0 Alt F1 for Menu Help F10 exits Page 01 Status Page PgDn Options Page F2 change colors Before disable the system amp video shadow you have first to disable the video cacheable and system cacheable function in the options page set
3. 4 85 526 8 39 30084 85 526 8 39 CP 30104 120MB 762 8 39 CP 30104H 120MB 762 8 39 CP 30174 170MB 903 8 46 CP 30174E 170MB 903 8 46 CP 30204 CP 30204F 200MB 683 16 38 HARD DISKSPECIHCATIONS MAXTOR Model Capacity Cylinder Head Sector 7120AT 120MB 1024 14 17 7213 203 683 16 38 QUANTUM Model Capacity Cylinder Head Sector PROS2AT 52MB 751 8 17 PRO80AT 80MB 611 16 17 PRO 105AT PRO 120AT PRO240AT 240MB 723 13 51 SEAGATE Model Capacity Cylinder Sector ST35 1A X 40MB 977 ST3096A 85MB 1024 ST3 120A ST3 144A ST3283A STANDARD CMOS SETUP AMIBIOS SETUP PROGRAM STANDARD CMOS SETUP C 1992 American Megatrends Inc All Rights Reserved Date mn date year Fri Dec 11 1992 Base memory 640 KB Time hour min sec 11 32 03 Ext memory 3072 KB Cyln Head WPcomLZone Sect Size Hard disk C Type s 17 9n 17 41 MB Hard disk D Type Not ma Flo drive A 12MB 5 4 Floppy drive B Not Installed 297012 345 Primary display VGA PGA EGA 61 8 9 10 1112 Keyboard Installed 13 14 15 16 17 1819 20 21 22 23 24 2526 27 28 29 30 31 1 2 2 1 Q Esc Exit Y Select F2 F3 Color PU PD Modify ADVANCED CMOS SETUP AMIBIOS SETUP PROGRAM ADVANCED CMOS SETUP C 1992 American Megatrends Inc All Rights Reserved Typematic Rate Programming Disabled Adaptor ROM Shadow C800 32K Disabled Typematic Rata Delay msec 500 Adaptor ROM S
4. 486 VC Mainboard User s Manual DOC NO 11499 Rev Date August 1992 Table of Contents INTRODUCTION 1 SYSTEM Lo ln 1 SPECIFICATIONS 1 MOTHERBOARD LAYOUT 0 9 SYSTEM BLOCK DIAGRAM 0 00 3 INSTALLATION riui 5 CONNECTOR DESCRIPTION 2 2 2 5 JUMPER DESCRIPTION 0084 6 CPU SELECTION CPU CLOCK SELECTION i aa i 2 26 MEMORY SYSTEM 7 MEMORY CONFIGURATION 7 CACHE RAM amp CONFIGURING CACHE SIZE 8 AWARDBIOSSETUP corpora SETUP SYSTEM CONFIGURATION 11 STATUS PAGE SETUP u oo ln 12 OPTIONS PAGE SETUP 12 SAVE AND EXIT 12 HARD DISKSPECIFICATIONS 13 CONNER 13 MAXTOR 22222255 S a SG da 14 QUANTUM m 2 o at et 14 SEAGATE 14 INTRODUCTION SYSTEM GUIDE The 486 VC Cache System Motherboard The 486 VC Cache System board is a high performance system board utilizing the VIA Technology Inc s VT82C480 80486 PC AT chipset that offers outstanding features and performance for building advanced personal computers or workstations High speed Memory The 486 VC Cache System board is capable of accommodating 1 to 128 megabytes of on board memory using 256KB IMB 4MB or 16MB SIMMs SPECIFICATIONS The 486 VC Cache System board comes with the following features Intel 80486D X 80486D X 2 804
5. 86SX 80487SX microprocessor Dual CPU of PQFP and PGA packages e Weitek 4167 co processor e VIA VT82C480 80486 PC AT Chipset for high performance e Supports OKB 64KB 128KB 256KB of direct mapped write back cache memory e Supports IMB up to 128MB of DRAM memory provides page mode DRAM operation e Shadow RAM for fast BIOS access e 64KB User friendly BIOS e Eight 16 bit expansion slots e Real time clock calendar e Board size 13 x8 58 INTRODUCTION MOTHERBOARD LAYOUT KEYBOARD LJ CONNECTOR POWER CONNECTOR looooooonoooa CACHE SIZE SELECT SERES om Gm 38 J7 SPEAKER S JTURBO TURBO SELECT J9 SW LED Ecce RESET 2900 INTRODUCTION SYSTEM BLOCK DIAGRAM CPU ADDRESS BUS CPU DATA BUS PERIPHERAL DATA BUS TAG SYSTEM ADDRESS BUS SA ISA BUS ES MEMORY pm ADDRESS BUS PERIPHERAL SYSTEM DATA BUS ADDRESS XD BUS SA CPU DATA DO SE BUS SYSTEM DATA BUS SD INSTALLATION CONNECTOR DESCRIPTION Function Turbo LED Hardware reset Signal name VCC Turbo sienal Ground Reset signal Speaker connector Speaker signal NC Ground 5 Key lock amp power LED Power signal Spare Ground Keylock Ground Power connector Power good SV 12 12v Ground 5V SV Keyboard connect
6. hadow DOOO 32K Disabled Typematic Rate Chars Sac 15 Adaptor ROM Shadow D800 32K D uabied Above MB Memory Test Disa bled Adaptor ROM Shadow EOOO 64K D isabied Memory Test Tick Sound Enabled BootSector Virus Protection Enabled Hit DEL Message Display Enabled BIOS Cacheable Option Enabled Hard Disk Type 47 RAM Area z 0200 Video Cacheable Option Enabled Wait For lt F1 gt If Any Error Enabled 256K Reiecate Option D isabied System Boot Up Num Lock o n ISA Bur Command Delay Disabled Numeric Procerror Teat Enabled ISA Slave Wait States 4 W S W eitek Processor Absent VOR ecovety Tim e Disabled Floppy Drive Seek At Boot Enabled Extended ALE Disabled System Boot Up Sequence ANG Decouple Refresh Dieabied System Boot Up CPU Speed 2 High AUTO Config Option Enabled External Cache Memory Enabled D RAM Speed Select OWS Internal Cache M Enabled Bur Clock Rate Select CLK21 5 Password Checking Option Setup Cache Read Cycle Select OWS Video ROM Shadow 32K Enabled Cache Write Cycle Select 0W S ESC Exit 4 Sel Ctrl Pu Pd Modify F1 Help F2 F3 Color F5 Old Values F6 BIOS Setup Defaults F7 Power on Defaults AMI BIOS SETUP PROGRAM addendum for VENUS mainboard
7. up 11 AWARD BIOSSETUP STATUS SETUP The setup program is completely menu driven Use the arrow keys to select an entry keys to change an entry and F 10 key to exit Help messages are displayed in the window on the screen If this option is chosen then the screen above is displayed System BIOS automatically detects memory size thus no changes are necessary After the changes are made press F 10 to exit OPTIONS PAGE SETUP The Options Page Setup program functions the same way as the status page Setup as shown below Users are not encouraged to run the status page Setup program as your system should have been fme tuned before shipping Improper setup may cause the system to fail so consult your dealer before making any changes Bus Control ISA Command Delay Normal ISA Wait state Normal VO Recovery Time Disable Extended ALE Disable Decouple Refresh Disable Cache Control 256K 384K Relocation Disable Cache Timing Turbo Video Cacheable Enable System Cacheable Enable Alt Fl for Menu Help F10 exits Page 01 Status Page PgDn Options Page F2 change colors SAVE AND EXIT Once you have completed Setup then press F 10 to exit If you did not make any changes press F 1 to exit otherwise press F5 to save and exit 12 HARD DISK SPECIFICATIONS CONNER Model Capacity Cylinder Head CP 3000 40MB 977 CP 30064 60MB 762 CP 3 0064H 60MB 762 4 39 3008
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