FIRST INTERNATIONAL COMPUTER, INC. 486-VIP-IO Processor AM486/CX486S/80486SX/CX486DX/80486DX/80486DX2/80486DX4/P4S/ P23S/P24CT/P24D/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set VIA Max. 64MB Onboard DRAM Cache 128/256/512/1024KB BIOS Award Dimensions 330mm x 218mm I/O 32-bit VESA local bus slots (2), 32-bit PCI slots (4), floppy drive Options interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2) NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse port CN1 Green PC connector J21 PS/2 mouse port CN4 Green PC connector J22 Serial port 2 CN6 Chassis fan power J24 Serial port 1 CN7 3.3v daughter board J25 connector Parallel port CN8 Speaker J28 Floppy drive CN9 Power LED & keylock J29 interface IDE interface CN10 Reset switch J30 (secondary) External battery J3 Turbo switch J31 IDE interface LED J4 Turbo LED J32 Green PC connector J5 32-bit PCI slots PC1 - PC4 IDE interface J6 32-bit VESA local SL1 & SL2 (primary) bus slots IDE interface LED J13 USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation J7 Open CMOS memory clear J7 Closed » IDE connector pin 27 linked to J8 Open IOCHRDY signal IDE connector pin 27 open J8 Closed » IDE connector pin 28 linked to BALE J11 Open signal IDE connector pin 28 open J11 Closed » Factory configured - do not alter J20 Pins 1 & 2 closed » Factory configured - do not alter J23 Pins 1 & 2 closed » VESA IDE enabled J26 Pins 1 & 2 closed VESA IDE disabled J26 Pins 2 & 3 closed » Monitor type select J33 Open monochrome/EGA/VGA Monitor type select color J33 Closed » Cache type select write back JC7 Pins 1 & 2 closed Cache type select write through JC7 Pins 2 & 3 closed » CPU type select Intel/AMD DX4 JC8 Pins 1 & 2 closed CPU type select Cyrix DX2-V JC8 Pins 2 & 3 closed » CPU type select Intel S - series JC9 Pins 1 & 2 closed CPU type select P24D/P24T/CX486DX JC9 Pins 2 & 3 closed » CPU type select Intel DX4 JC10 Open CPU type select CX486DX/DX2-V JC10 Closed » IRQ select IRQ10 JT3 Pins 2 & 3 closed IRQ select IRQ14 JT3 Pins 1 & 2 closed » Factory configured - do not alter JX1 Pins 2 & 3 closed » Factory configured - do not alter JX2 Pins 2 & 3 closed » Factory configured - do not alter JX5 Pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x NONE NONE NONE 36 1MB NONE (1) 256K x NONE NONE 36 1MB NONE NONE (1) 256K x NONE 36 2MB (1) 256K x (1) 256K x NONE NONE 36 36 2MB (1) 256K x NONE (1) 256K x NONE 36 36 2MB NONE NONE (1) 256K x (1) 256K x 36 36 2MB NONE (1) 256K x (1) 256K x NONE 36 36 3MB (1) 256K x (1) 256K x (1) 256K x NONE 36 36 36 3MB NONE (1) 256K x (1) 256K x (1) 256K x 36 36 36 3MB (1) 256K x NONE (1) 256K x (1) 256K x 36 36 36 4MB (1) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 4MB (1) 1M x 36 NONE NONE NONE 4MB NONE (1) 1M x 36 NONE NONE 4MB NONE NONE (1) 1M x 36 NONE 5MB (1) 1M x 36 (1) 256K x NONE NONE 36 5MB (1) 256K x (1) 1M x 36 NONE NONE 36 5MB (1) 256K x NONE (1) 1M x 36 NONE 36 5MB (1) 1M x 36 NONE (1) 256K x NONE 36 5MB NONE (1) 256K x (1) 1M x 36 NONE 36 5MB NONE (1) 1M x 36 (1) 256K x NONE 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x NONE 36 36 6MB (1) 256K x (1) 256K x (1) 1M x 36 NONE 36 36 6MB (1) 256K x (1) 1M x 36 (1) 256K x NONE 36 36 6MB NONE (1) 1M x 36 (1) 256K x (1) 256K x 36 36 6MB (1) 1M x 36 NONE (1) 256K x (1) 256K x 36 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 7MB (1) 256K x (1) 1M x 36 (1) 256K x (1) 256K x 36 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 1M x 36 NONE (1) 1M x 36 NONE 8MB NONE NONE (1) 1M x 36 (1) 1M x 36 8MB NONE (1) 1M x 36 (1) 1M x 36 NONE 9MB (1) 256K x (1) 1M x 36 (1) 1M x 36 NONE 36 9MB (1) 1M x 36 (1) 256K x (1) 1M x 36 NONE 36 9MB (1) 1M x 36 (1) 1M x 36 (1) 256K x NONE 36 9MB NONE (1) 256K x (1) 1M x 36 (1) 1M x 36 36 9MB (1) 256K x NONE (1) 1M x 36 (1) 1M x 36 36 10MB (1) 256K x (1) 256K x (1) 1M x 36 (1) 1M x 36 36 36 10MB (1) 1M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 12MB NONE (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 12MB (1) 1M x 36 NONE (1) 1M x 36 (1) 1M x 36 13MB (1) 256K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 13MB (1) 1M x 36 (1) 256K x (1) 1M x 36 (1) 1M x 36 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 4M x 36 NONE NONE NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 16MB NONE (1) 4M x 36 NONE NONE 16MB NONE NONE (1) 4M x 36 NONE 17MB (1) 4M x 36 (1) 256K x NONE NONE 36 17MB (1) 256K x (1) 4M x 36 NONE NONE 36 17MB (1) 256K x NONE (1) 4M x 36 NONE 36 17MB NONE (1) 256K x (1) 4M x 36 NONE 36 17MB NONE (1) 4M x 36 (1) 256K x NONE 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x NONE 36 36 18MB (1) 256K x (1) 256K x (1) 4M x 36 NONE 36 36 18MB (1) 256K x (1) 4M x 36 (1) 256K x NONE 36 36 18MB NONE (1) 4M x 36 (1) 256K x (1) 256K x 36 36 19MB (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 19MB (1) 256K x (1) 4M x 36 (1) 256K x (1) 256K x 36 36 36 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 20MB (1) 1M x 36 NONE (1) 4M x 36 NONE 20MB NONE (1) 4M x 36 (1) 1M x 36 NONE 20MB NONE (1) 1M x 36 (1) 4M x 36 NONE 21MB (1) 4M x 36 (1) 1M x 36 (1) 256K x NONE 36 21MB (1) 256K x (1) 1M x 36 (1) 4M x 36 NONE 36 21MB (1) 256K x (1) 4M x 36 (1) 1M x 36 NONE 36 21MB (1) 1M x 36 (1) 256K x (1) 4M x 36 NONE 36 21MB (1) 1M x 36 (1) 4M x 36 (1) 256K x NONE 36 22MB (1) 4M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 22MB (1) 1M x 36 (1) 4M x 36 (1) 256K x (1) 256K x 36 36 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 NONE 24MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 NONE 24MB (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 NONE 24MB NONE (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 25MB (1) 256K x (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 36 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 28MB (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB NONE (1) 4M x 36 (1) 4M x 36 NONE 32MB NONE NONE (1) 4M x 36 (1) 4M x 36 32MB (1) 8M x 36 NONE NONE NONE 32MB NONE NONE (1) 8M x 36 NONE 33MB (1) 4M x 36 (1) 4M x 36 (1) 256K x NONE 36 33MB (1) 256K x (1) 4M x 36 (1) 4M x 36 NONE 36 33MB NONE (1) 256K x (1) 4M x 36 (1) 4M x 36 36 33MB (1) 256K x NONE (1) 4M x 36 (1) 4M x 36 36 34MB (1) 4M x 36 (1) 4M x 36 (1) 256K x (1) 256K x 36 36 34MB (1) 256K x (1) 256K x (1) 4M x 36 (1) 4M x 36 36 36 36MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE 36MB NONE (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 36MB (1) 1M x 36 NONE (1) 4M x 36 (1) 4M x 36 37MB (1) 256K x (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 36 37MB (1) 1M x 36 (1) 256K x (1) 4M x 36 (1) 4M x 36 36 40MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 40MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 48MB NONE (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 49MB (1) 256K x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 NONE (1) 8M x 36 NONE CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 or (1) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 256KB (4) 64K x 8 NONE (1) 32K x 8 512KB (4) 128K x 8 NONE (1) 32K x 8 512KB (4) 64K x 8 (4) 64K x 8 (1) 32K x 8 or (1) 64K x 8 1MB (4) 128K x 8 (4) 128K x 8 (1) 64K x 8 or (1) 128K x 8 CACHE JUMPER CONFIGURATION Size JS1 JS2 JS3 JS4 JS5 JS6 128KB 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 256KB 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 1 & 2 512KB 2 & 3 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 1MB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JC1 JC2 JC3 JC4 JC5 JC6 AM486 1 & 2 1 & 2 Open 1 & 2 Open Closed CX486S 2 & 3 2 & 3 Open 1 & 2 Open Open 80486SX 2 & 3 2 & 3 Open 1 & 2 Open Closed CX486DX 1 & 2 1 & 2 Open 1 & 2 Open Open 80486DX 1 & 2 1 & 2 Open 1 & 2 Open Closed 80486DX2 1 & 2 1 & 2 Open 1 & 2 Open Closed 80486DX4 1 & 2 1 & 2 Open 1 & 2 Closed Closed P4S 1 & 2 1 & 2 Open 1 & 2 Closed Closed P23S 2 & 3 2 & 3 Open 1 & 2 Closed Closed P24S 1 & 2 1 & 2 Open 1 & 2 Closed Closed P24CT 1 & 2 1 & 2 Closed 2 & 3 Closed Closed P24D 1 & 2 1 & 2 Open 2 & 3 Closed Closed P24T 1 & 2 1 & 2 Closed 2 & 3 Closed Closed Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type RN18 RN19 RN20 AM486 Not installed Not installed Installed CX486S Installed Not installed Not installed 80486SX Not installed Not installed Not installed CX486DX Installed Not installed Not installed 80486DX Not installed Not installed Not installed 80486DX2 Not installed Not installed Not installed 80486DX4 Not installed Installed Not installed P4S Not installed Not installed Not installed P23S Not installed Not installed Not installed P24S Not installed Not installed Not installed P24CT Not installed Installed Not installed P24D Not installed Installed Not installed P24T Not installed Not installed Not installed Note: The locations of RN18, RN19 & RN 20 are unidentified. CPU SPEED CONFIGURATION Speed JK1 JK2 JK3 JK4 25MHz Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 closed closed closed closed 33MHZ Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed closed 40MHz Pins 1 & 2 Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 closed closed closed closed 50iMHz Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 closed closed closed closed 50MHz Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed closed 66iMHz Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed closed 75iMHz Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 closed closed closed closed 100iMHz Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed closed CPU SPEED CONFIGURATION (80486DX4 ONLY) Speed J27 2.0x Pins 2 & 3 closed 2.5x Pins 1 & 2 closed 3.0x Open VESA WAIT STATE CONFIGURATION Wait states JV1 0 wait states Pins 2 & 3 closed 1 wait state Pins 1 & 2 closed BUS SPEED CONFIGURATION CPU speed JV2 <= 33MHz Pins 2 & 3 closed > 33MHz Pins 1 & 2 closed BASE I/O ADDRESS CONFIGURATION Index address Data address JF JG JH » 26EH 26FH Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed » 2EH 2FH Pins 1 & 2 Pins 1 & 2 Pins 2 & 3 closed closed closed » 15CH 15DH Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 closed closed closed » 398H 399H Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed DMA MODE CONFIGURATION Speed JP1 JP2 » DREQ3/DACK3 Pins 1 & 2 closed Pins 1 & 2 closed » DREQ1/DACK1 Pins 2 & 3 closed Pins 2 & 3 closed IDE CONNECTOR CONFIGURATION IRQ J8 J9 J10 J11 IDE connector pin 27 Open Open N/A N/A linked to IOCHRDY signal IDE connector pin 27 Closed Closed N/A N/A open IDE connector pin 28 N/A N/A Open Open linked to BALE signal IDE connector pin 28 N/A N/A Closed Closed open IDE CONTROLLER CONFIGURATION Speed J14 J16 0 Pins 2 & 3 closed Pins 1 & 2 closed 1 Pins 2 & 3 closed Pins 1 & 2 closed 2 Pins 1 & 2 closed Pins 1 & 2 closed IRQ PULL UP/PULL DOWN CONFIGURATION IRQ J1 J2 J34 J35 J36 IRQ5 pull up 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 IRQ5 pull 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 down IRQ9 pull up 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 IRQ9 pull 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 down IRQ10 pull 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 up IRQ10 pull 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 down IRQ11 pull 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 up IRQ11 pull 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 down IRQ14 pull 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 up IRQ14 pull 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 down Note: Use pull down setting if PCI card is installed. Pins designated should be in the closed position. PCI CLOCK CONFIGURATION Setting JT4 J19 PCICLK=PCICLK Pins 1 & 2 closed Pins 1 & 2 closed PCICLK=CPUCLK/2 Pins 2 & 3 closed Pins 2 & 3 closed KEYBOARD CONTROLLER CONFIGURATION Type J17 JX3 JX4 External keyboard Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed Internal keyboard Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 with PS/2 mouse closed closed closed Internal keyboard Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 without PS/2 mouse closed closed closed KEYBOARD CONTROLLER CONFIGURATION (CON’T) Type RN1 RN2 RN3 External keyboard Installed Not installed Not installed Internal keyboard Not installed Installed Not installed with PS/2 mouse Internal keyboard Not installed Not installed Installed without PS/2 mouse Note: The locations of RN1, RN2, & RN3 are unidentified.