FIRST INTERNATIONAL COMPUTER, INC. 486-PIO-3 (REV. A1) Processor 80486SX/UMCU5SD/CX486DX/80486DX/UMCU5S/UMCU5SLV/ CX486DX2/TI486DX2/AM486DX2/(SL)AM486DX2/ 80486DX2/ 80486DX4ODP/CX486DX4/TI486DX4/AM486DX4/(SL)AM486DX4/ 80486DX4/AMK5/P24D/P24S/P24T/CX5X86 Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ Speed 100(internal)/133(internal)MHz Chip Set VIA Video Chip None Set Maximum 64MB Onboard Memory Maximum None Video Memory Cache 128/256/512/1024KB BIOS Award Dimensions 254mm x 218mm I/O 32-bit PCI slots (3), floppy drive interface, green PC Options connector, IDE interfaces (2), parallel port, serial ports (2), IR connector NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery BAT Serial port 1 CN1 Chassis fan power C1 Serial port 2 CN2 Green PC connector C3 Parallel port CN3 Outlet connector C4 Floppy drive CN4 interface Turbo/green PC LED C5 IDE interface 2 CN5 IDE interface LED C6 IDE interface 1 CN6 Reset switch C7 IR connector IR Power LED & keylock C8 32-bit PCI slots PC1 - PC3 Speaker C9 USER CONFIGURABLE SETTINGS Function Label Position Flash BIOS type select Intel J1 Pins 1 & 2 closed 28F00BX-T1 Flash BIOS type select SST 29EE010 J1 Pins 2 & 3 closed » KB_LOCK mode select KB_LOCK J2 Pins 2 & 3 closed KB_LOCK mode select IOCHCK J2 Pins 1 & 2 closed » Turbo LED used as turbo LED J3 Open Turbo LED used as green PC LED J3 Closed » Password normal operation JCP Open Password clear JCP Closed » Parallel port bidirectional JI1 Open Parallel port unidirectional JI1 Closed Jumper information unavailable JP1 Unidentified Jumper information unavailable JP2 Unidentified Monitor type select VIDEO Closed monochrome/EGA/VGA Monitor type select CGA VIDEO Open DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (1) 256K x 36 None 2MB (1) 256K x 36 (1) 256K x 36 4MB (1) 1M x 36 None 5MB (1) 1M x 36 (1) 256K x 36 8MB (1) 1M x 36 (1) 1M x 36 16MB (1) 4M x 36 None 17MB (1) 4M x 36 (1) 256K x 36 20MB (1) 4M x 36 (1) 1M x 36 32MB (1) 8M x 36 None 33MB (1) 8M x 36 (1) 256K x 36 36MB (1) 8M x 36 (1) 1M x 36 48MB (1) 8M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 None (1) 8K/32K x 8 256KB (A) (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 256KB (B) (4) 64K x 8 None (1) 32K x 8 512KB (A) (4) 128K x 8 None (1) 32K x 8 512KB (B) (4) 64K x 8 (4) 64K x 8 (1) 32K/64K x 8 1MB (4) 128K x 8 (4) 128K x 8 (1) 64K/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 (A) 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 1 & 2 256KB (B) 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 1 & 2 512KB (A) 2 & 3 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 512KB (B) 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 SPEED SELECTION 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 1 & 2 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 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 80iMHz Pins 1 & 2 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 133iMHz Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed closed CPU TYPE SELECTION Type JC1 JC2 JC3 JC4 JC5 80486SX 2 & 3 2 & 3 Open Open Open UMC U5SD 1 & 2 1 & 2 Open Open Open CX486DX 1 & 2 1 & 2 Open Open Open 80486DX 1 & 2 1 & 2 Open 2 & 3 Open U5S 2 & 3 2 & 3 Open Open Open U5SLV 2 & 3 2 & 3 Open Open Open CX486DX2 1 & 2 1 & 2 Open Open Open TI486DX2 1 & 2 1 & 2 Open Open Open AM486DX2 1 & 2 1 & 2 Closed Open Open (SL)AM486DX2 1 & 2 1 & 2 Open 2 & 3 Open 80486DX2 1 & 2 1 & 2 Open 2 & 3 Open CX486DX4 1 & 2 1 & 2 Open 1 & 2 Open TI486DX4 1 & 2 1 & 2 Open Open Open AM486DX4 1 & 2 1 & 2 Open Open Open (SL)AM486DX4 1 & 2 1 & 2 Open 1 & 2 Open 80486DX4ODP 1 & 2 1 & 2 Open 1 & 2 Open 80486DX4 (2x) 1 & 2 1 & 2 Open 2 & 3 Open 80486DX4 (3x) 1 & 2 1 & 2 Open 1 & 2 Open AM X5 1 & 2 1 & 2 Open 2 & 3 Open P24D 1 & 2 1 & 2 Open 1 & 2 Open P24S 1 & 2 1 & 2 Open 2 & 3 Open P24T 1 & 2 1 & 2 Open 1 & 2 Closed CX5X86 1 & 2 1 & 2 Open 1 & 2 Open Note: Pins designated should be in the closed position. CPU TYPE SELECTION Type RNA RNC RNI 80486SX Not installed Not installed Pins 1 - 8 closed UMC U5SD Installed Not installed Not installed CX486DX Not installed Installed Not installed 80486DX Not installed Not installed Pins 1 - 8 closed U5S Installed Not installed Not installed U5SLV Installed Not installed Not installed CX486DX2 Not installed Installed Not installed TI486DX2 Not installed Installed Not installed AM486DX2 Installed Not installed Not installed (SL)AM486DX2 Not installed Not installed Pins 1 - 8 closed 80486DX2 Not installed Not installed Pins 1 - 8 closed CX486DX4 Not installed Not installed Pins 1 - 8 closed TI486DX4 Not installed Installed Not installed AM486DX4 Installed Not installed Not installed (SL)AM486DX4 Not installed Not installed Pins 1 - 8 closed 80486DX4ODP Not installed Not installed Pins 1 - 8 closed 80486DX4 (2x) Not installed Not installed Pins 1 - 8 closed 80486DX4 (3x) Not installed Not installed Pins 1 - 8 closed AM X5 Not installed Not installed Pins 1 - 8 closed P24D Not installed Not installed Pins 1 - 8 closed P24S Not installed Not installed Pins 1 - 8 closed P24T Not installed Not installed Pins 1 - 8 closed CX5X86 Not installed Not installed Pins 1 - 8 closed CPU VOLTAGE SELECTION Voltage C2 JPW1 JPW2 3.3v Open Pins 1 & 2 Open closed 3.45v Open Pins 2 & 3 Open closed 3.6v Open Open Pins 1 & 2 closed 4v Open Open Pins 2 & 3 closed 5v Pins 1 & 2, 3 & N/A N/A 4 closed PCI BUS SPEED SELECTION CPU Clock JCK JT1 » <= 33MHz (PCI clock = Pins 1 & 2 closed Pins 1 & 2 closed CPU clock) >33 MHz (PCI clock = Pins 2 & 3 closed Pins 2 & 3 closed CPU clock/2) DMA CHANNEL SELECTION Channel JW3 JW4 » 1 Pins 1 & 2 closed Pins 1 & 2 closed 3 Pins 2 & 3 closed Pins 2 & 3 closed SERIAL PORT 2 SELECTION Setting JW1 JW2 Used as Serial port 2 Pins 1 & 2 closed Pins 1 & 2 closed Used as IR connector Pins 2 & 3 closed Pins 2 & 3 closed