FIRST INTERNATIONAL COMPUTER, INC. 486 GAW-V Processor CX486S/CS487S/CS486DX/80486SX/80486DX/80486DX2/80486DX4/ Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)MHz Speed Chip Set VIA Max. Onboard64MB DRAM Cache 64/128/256KB BIOS Award Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slot, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Green power supply J1 Serial port 2 CN5 connector IDE interface LED J5 Parallel port CN6 Turbo LED J9 VGA port CN7 Turbo switch J10 VGA feature CN8 connector Reset switch J11 IDE drive interface CN9 Power LED & keylock J12 Floppy drive CN10 interface Speaker J13 Daughter board CN11 connector PS/2 mouse port CN3 32-bit VESA Local SL1 bus slot Serial port 1 CN4 USER CONFIGURABLE SETTINGS Function Jumper Position » HDD IOCHRDY disabled J2 Open HDD IOCHRDY enabled J2 Closed » HDD BALE disabled J3 Open HDD BALE enabled J3 Closed » Non Intel SL-enhanced CPU J4, J16, JX5 pins 1 & 2 closed Intel SL-enhanced CPU J4, J16, JX5 pins 2 & 3 closed » CMOS memory normal operation J7 Open CMOS memory clear J7 Closed » Factory configured - do not alter J8 pins 1 & 2 closed » Adaptec ISA master 1542B/C SCSI J14 Open (transfer rate <5.7 MB/s) Adaptec ISA master 1542B/C SCSI J14 Closed (transfer rate >5.7 MB/s) » Intel DX4 clock select (3X) JC6 Open Intel DX4 clock select (2.5X) JC6 pins 1 & 2 closed Intel DX4 clock select (2X) JC6 pins 2 & 3 closed » Pentium Overdrive write back JC7 Closed enabled Pentium Overdrive write through JC7 Open enabled » Intel CPU installed JC8 Closed Cyrix CPU installed JC8 Open » IDE interface enabled JD3 pins 1 & 2 closed IDE interface disabled JD3 pins 2 & 3 closed » Onboard VGA enabled JV1, JV2 pins 2 & 3 closed Onboard VGA disabled JV1, JV2 pins 1 & 2 closed » VGA IRQ9 disabled JV3 Open VGA IRQ9 enabled JV3 Closed » DX33 CPU installed JV4/11 & 12 Open DX50/DX4 CPU installed JV4/11 & 12 Closed » Intel SL enhanced CPU installed JX4 pins 1 & 2 closed Cyrix 486S/DX CPU installed JX4 pins 2 & 3 closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JS1 JS2 JS3 64KB pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 128KB pins 2 & 3 pins 1 & 2 pins 1 & 2 closed closed closed 256KB pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x NONE NONE NONE 36 2MB (1) 256K x (1) 256K x NONE NONE 36 36 3MB (1) 256K x (1) 256K x (1) 256K x NONE 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 5MB (1) 1M x 36 (1) 256K x NONE NONE 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x NONE 36 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 2M x 36 NONE NONE NONE 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 12MB (1) 2M x 36 (1) 1M x 36 NONE NONE 12MB NONE (1) 2M x 36 (1) 1M x 36 NONE 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 16MB (1) 2M x 36 (1) 1M x 36 NONE (1) 1M x 36 16MB (1) 1M x 36 (1) 2M x 36 (1) 1M x 36 NONE 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE 17MB (1) 4M x 36 (1) 256K x NONE NONE 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x NONE 36 36 19MB (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 21MB (1) 4M x 36 (1) 1M x 36 (1) 256K x NONE 36 22MB (1) 4M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 NONE 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE NONE NONE 33MB (1) 4M x 36 (1) 4M x 36 (1) 256K x NONE 36 34MB (1) 4M x 36 (1) 4M x 36 (1) 256K x (1) 256K x 36 36 36MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 NONE 40MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 48MB (1) 8M x 36 (1) 4M x 36 NONE NONE 48MB NONE (1) 8M x 36 (1) 4M x 36 NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 4M x 36 NONE (1) 4M x 36 64MB (1) 4M x 36 (1) 8M x 36 (1) 4M x 36 NONE 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE . 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 CPU TYPE CONFIGURATION CPU Type JC1 JC2 JC3 JC4 486SX/P23S/CX486S pins 2 & 3 pins 2 & 3 Open pins 1 & 2 closed closed closed CX486DX/486S-487S pins 1 & 2 pins 1 & 2 Open pins 1 & 2 closed closed closed P24S/P4S pins 1 & 2 pins 1 & 2 Open pins 1 & 2 closed closed closed 80486DX/DX2/DX4 pins 1 & 2 pins 1 & 2 Open pins 1 & 2 closed closed closed Pentium Overdrive pins 1 & 2 pins 1 & 2 Closed pins 2 & 3 closed closed closed P24D pins 1 & 2 pins 1 & 2 Open pins 2 & 3 closed closed closed CPU TYPE CONFIGURATION CPU Type JC5 RC1 RC2 CX486S/DX Open Not installed Installed 486SX/DX/DX2 Open Not installed Not Installed P23S/P24S/P4S Closed Not installed Not installed P24D/P24CT/DX4 Closed Installed Not installed HARD DRIVE SPEED SELECT Speed JD1 JD2 Speed 0 pins 2 & 3 closed pins 2 & 3 closed Speed 1 pins 1 & 2 closed pins 2 & 3 closed Speed 2 pins 1 & 2 closed pins 1 & 2 closed Note:Used only with the Promise PDC20230 local bus IDE controller card. VESA WAIT STATE/BUS SPEED CONFIGURATION CPU speed Wait states JL1 JL2 < 33MHz 0 wait states pins 1 & 2 pins 1 & 2 closed closed > 33MHz 1 wait state pins 2 & 3 pins 2 & 3 closed closed 800 X 600 REFRESH RATES Speed JV4/1 & 2 JV4/3 & 4 56MHz (default) Open Open 56MHz Closed Closed 60MHz Open Closed 72MHz Closed Open 1024 X 768 REFRESH RATES Speed JV4/5 & 6 JV4/7 & 8 Interlaced Open Open 60Hz non-interlaced Open Closed 70Hz non-interlaced Closed Open 72Hz non-interlaced Closed Closed VIDEO FONT SETTINGS Font JV4/9 & 10 Standard fonts Open TUV fonts Closed Note: TUV is the German standard for character spacing, and may not be compatible with some DOS applications.