FIRST INTERNATIONAL COMPUTER, INC. 486-POS Device Mainboard Type Processor 80486SX/U5S/U5SD/U5SLV/CX 486DX/80486DX/CX 486DX2/ AM486DX2/80486DX2/CX 486DX4/TI486DX4/AM486DX4/80486DX4/ P24D/P24S/P24T/CX 5X85/CX M1SC/AM X5 Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ Speed 100(internal)/120(internal)/133(internal)MHz Chip Set VIA Video Chip Unidentified Set Maximum 64MB Onboard Memory Maximum 1MB Video Memory Cache None BIOS Unidentified Dimensions 254mm x 218mm I/O Ethernet BNC connector, Ethernet RJ-45 connector, floppy drive Options interface, IDE interface, parallel port, PS/2 mouse port, serial port, VGA interface NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock C1 VGA interface CN5 Reset switch C2 IDE interface CN6 Ethernet BNC connector CN1 Floppy drive interface CN7 Ethernet RJ-45 CN2 Parallel port CN8 connector PS/2 mouse port CN3 Keyboard connector CN9 Serial port 1 CN4 USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation CMOS Closed CMOS memory clear CMOS Open » On board LAN enabled JL1 Pins 1 & 2 closed On board LAN disabled JL1 Pins 2 & 3 closed On board chipset select CG version JP1 Pins 2 & 3 closed On board chipset select all others JP1 Pins 1 & 2 closed » On board video enabled JV1 Pins 2 & 3 closed On board video disabled JV1 Pins 1 & 2 closed » Factory configured - do not alter JV2 Unidentified » Monitor type select VID Open monochrome/EGA/VGA Monitor type select color VID Closed SIMM CONFIGURATION Size Bank 0 Bank 1 4MB (1) 1M x 36 None 8MB (1) 2M x 36 None 8MB (1) 1M x 36 (1) 1M x 36 12MB (1) 1M x 36 (1) 2M x 36 16MB (1) 4M x 36 None 16MB (1) 2M x 36 (1) 2M x 36 20MB (1) 4M x 36 (1) 1M x 36 24MB (1) 2M x 36 (1) 4M x 36 32MB (1) 8M x 36 None 32MB (1) 4M x 36 (1) 4M x 36 36MB (1) 1M x 36 (1) 8M x 36 40MB (1) 2M x 36 (1) 8M x 36 48MB (1) 4M x 36 (1) 8M x 36 64MB (1) 8M x 36 (1) 8M x 36 VIDEO MEMORY CONFIGURATION Size Bank 0 Bank 1 512KB (1) 256K x 16 None 1MB (1) 256K x 16 (1) 256K x 16 CPU TYPE SELECTION Type JC1 JC2 JC3 80486SX Pins 2 & 3 Pins 2 & 3 Open closed closed U5S Pins 2 & 3 Pins 2 & 3 Open closed closed U5SD Pins 1 & 2 Pins 1 & 2 Open closed closed U5SLV Pins 2 & 3 Pins 2 & 3 Open closed closed CX 486DX Pins 1 & 2 Pins 1 & 2 Open closed closed 80486DX Pins 1 & 2 Pins 1 & 2 Open closed closed CX 486DX2 Pins 1 & 2 Pins 1 & 2 Open closed closed AM486DX2-80 Pins 1 & 2 Pins 1 & 2 Open closed closed AM486DX2 Pins 1 & 2 Pins 1 & 2 Open closed closed 80486DX2 Pins 1 & 2 Pins 1 & 2 Open closed closed CX 486DX4 Pins 1 & 2 Pins 1 & 2 Open closed closed TI486DX4 Pins 1 & 2 Pins 1 & 2 Open closed closed AM486DX4 Pins 1 & 2 Pins 1 & 2 Open closed closed (SL) AM486DX4 Pins 1 & 2 Pins 1 & 2 Open closed closed 80486DX4 (3x) Pins 1 & 2 Pins 1 & 2 Open closed closed 80486DX4 Pins 1 & 2 Pins 1 & 2 Open closed closed P24D Pins 1 & 2 Pins 1 & 2 Open closed closed P24S Pins 1 & 2 Pins 1 & 2 Open closed closed P24T Pins 1 & 2 Pins 1 & 2 Closed closed closed CX 5X85 Pins 1 & 2 Pins 1 & 2 Open closed closed CX M1SC Pins 1 & 2 Pins 1 & 2 Open closed closed AM X5 Pins 1 & 2 Pins 1 & 2 Open closed closed CPU TYPE SELECTION (CON'T) Type RNA RNC RN1 80486SX Not installed Not installed Pins 1 - 8 closed U5S Pins 1 - 8 Not installed Not installed closed U5SD Pins 1 - 8 Not installed Not installed closed U5SLV Pins 1 - 8 Not installed Not installed closed CX 486DX Not installed Pins 1 - 8 Not installed closed 80486DX Not installed Not installed Pins 1 - 8 closed CX 486DX2 Not installed Pins 1 - 8 Not installed closed AM486DX2-80 Not installed * * AM486DX2 Installed Not installed Not installed 80486DX2 Not installed Not installed Pins 1 - 8 closed CX 486DX4 Not installed Not installed Pins 1 - 8 closed TI486DX4 Not installed Not installed Pins 1 - 8 closed AM486DX4 Installed Not installed Not installed (SL) AM486DX4 Not installed Not installed Pins 1 - 8 closed 80486DX4 (3x) Not installed Not installed Pins 1 - 8 closed 80486DX4 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 CX 5X85 Not installed Not installed Pins 1 - 8 closed CX M1SC Not installed Not installed Pins 2 - 10 closed AM X5 Not installed * * Note: * = Connect pin 2 on RN1 to pin 5 on RNC 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 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 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 120iMHz Pins 1 & 2 Pins 1 & 2 Pins 2 & 3 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 LOW VOLTAGE SELECTION Voltage JVC1 JVC2 3.3v Pins 1 & 2 closed Open 3.45v Pins 2 & 3 closed Open 3.59v Open Pins 1 & 2 closed 4v Open Pins 2 & 3 closed CPU VOLTAGE SELECTION Voltage CN3V 3.3v Open 3.46v Open 3.59v Open 4v Open 5v Pins 1 & 2, 3 & 4 closed DMA CHANNEL SELECTION Channel ECP1 ECP2 » 1 Pins 1 & 2 closed Pins 1 & 2 closed 3 Pins 2 & 3 closed Pins 2 & 3 closed