FIRST INTERNATIONAL COMPUTER, INC. 486-PVT (REV. B2) Processor CX486SX/80486SX/SL80486SX/AM486DX/80486DX/SL80486DX/ CX486DX/CX486DXV/CX486DX2/CX486DX2V/AM486DX2/ 80486DX2/SL80486DX2/80486DX4/P24CT/P24D/P24T Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set VIA Video Chip None Set Maximum 128MB Onboard Memory Maximum None Video Memory Cache 128/256/512KB BIOS Award Dimensions 254mm x 218mm I/O 32-bit VESA local bus slots (2), green PC connector, Low voltage Options regulator board connector NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Low voltage CN6 Speaker J8 regulator board connector Green PC LED J3 Power LED & keylock J9 Green PC connector J4 Green PC connector J10 Turbo LED J5 Chassis fan power J11 Turbo switch J6 32-bit VESA local SL1 & SL2 bus slots Reset switch J7 USER CONFIGURABLE SETTINGS Function Label Position » Password normal operation JCP Open Password clear JCP Closed » Monitor type select JP1 Open monochrome/EGA/VGA Monitor type select color JP1 Closed Jumper information unavailable JP2 Unidentified 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) 1M x 36 None None None 4MB None (1) 1M x 36 None None 4MB None None (1) 1M x 36 None 4MB (1) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 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 (1) 256K x None 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) 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 (1) 1M x 36 (1) 256K x (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 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 7MB (1) 256K x (1) 1M x 36 (1) 256K x (1) 256K x 36 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) 1M x 36 None (1) 1M x 36 None 8MB None (1) 1M x 36 (1) 1M x 36 None 8MB None None (1) 1M x 36 (1) 1M x 36 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 None (1) 4M x 36 None None 16MB None None (1) 4M x 36 None 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 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) 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) 256K x (1) 4M x 36 (1) 256K x (1) 256K x 36 36 36 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) 1M x 36 (1) 4M x 36 None 20MB None (1) 4M x 36 (1) 1M x 36 None 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) 1M x 36 (1) 4M x 36 (1) 256K x (1) 256K x 36 36 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) 1M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 32MB None None (1) 4M x 36 (1) 4M x 36 32MB (1) 8M x 36 None None None 32MB None (1) 8M x 36 None None 32MB None (1) 4M x 36 (1) 4M x 36 None 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) 256K x (1) 256K x (1) 4M x 36 (1) 4M x 36 36 36 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) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 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 None (1) 8M x 36 (1) 8M x 36 None 65MB (1) 256K x (1) 8M x 36 (1) 8M x 36 None 36 66MB (1) 256K x (1) 256K x (1) 8M x 36 (1) 8M x 36 36 36 66MB (1) 256K x (1) 8M x 36 (1) 256K x (1) 8M x 36 36 36 66MB (1) 8M x 36 (1) 8M x 36 (1) 256K x (1) 256K x 36 36 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 None 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 None 68MB None (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 68MB (1) 8M x 36 (1) 8M x 36 (1) 1M x 36 None 69MB (1) 256K x (1) 8M x 36 (1) 1M x 36 (1) 8M x 36 36 69MB (1) 1M x 36 (1) 256K x (1) 8M x 36 (1) 8M x 36 36 69MB (1) 1M x 36 (1) 8M x 36 (1) 256K x (1) 8M x 36 36 72MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 72MB (1) 1M x 36 (1) 8M x 36 (1) 1M x 36 (1) 8M x 36 72MB (1) 8M x 36 (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 80MB (1) 8M x 36 (1) 4M x 36 (1) 8M x 36 None 80MB (1) 8M x 36 (1) 8M x 36 (1) 4M x 36 None 81MB (1) 256K x (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 36 81MB (1) 256K x (1) 8M x 36 (1) 4M x 36 (1) 8M x 36 36 84MB (1) 1M x 36 (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 84MB (1) 1M x 36 (1) 8M x 36 (1) 4M x 36 (1) 8M x 36 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 None 97MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 256K x 36 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 TAG 128KB (4) 32K x 8 (1) 8K/32K x 8 256KB (4) 64K x 8 (1) 32K x 8 512KB (4) 128K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JS1 JS2 128KB Pins 1 & 2 closed Pins 1 & 2 closed 256KB Pins 2 & 3 closed Pins 1 & 2 closed 512KB Pins 2 & 3 closed Pins 2 & 3 closed 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 100iMHz 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 CX486SX 2 & 3 2 & 3 1 & 2 Open 2 & 3 80486SX 2 & 3 2 & 3 1 & 2 Open 1 & 2 SL80486SX 2 & 3 2 & 3 1 & 2 Open 1 & 2 AM486DX 1 & 2 1 & 2 1 & 2 Open 1 & 2 80486DX 1 & 2 1 & 2 1 & 2 Open 1 & 2 SL 80486DX 1 & 2 1 & 2 1 & 2 Open 1 & 2 CX486DX 1 & 2 1 & 2 1 & 2 Open 1 & 2 CX486DXV 1 & 2 1 & 2 1 & 2 Open 2 & 3 CX486DX2 1 & 2 1 & 2 1 & 2 Open 1 & 2 CX486DX2V 1 & 2 1 & 2 1 & 2 Open 2 & 3 AM486DX2 1 & 2 1 & 2 1 & 2 Open 1 & 2 80486DX2 1 & 2 1 & 2 1 & 2 Open 1 & 2 SL 80486DX2 1 & 2 1 & 2 1 & 2 Open 1 & 2 80486DX4 1 & 2 1 & 2 1 & 2 Open 1 & 2 P24CT 1 & 2 1 & 2 1 & 2 Closed 1 & 2 P24D 1 & 2 1 & 2 1 & 2 Closed 1 & 2 P24T 1 & 2 1 & 2 1 & 2 Closed 1 & 2 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON’T) Type RN16 RN17 RN18 RN19 CX486SX Installed Not Not Not installed installed installed 80486SX Not Not Not Installed installed installed installed SL80486SX Not Not Not Installed installed installed installed AM486DX Not Not Installed Not installed installed installed 80486DX Not Not Not Installed installed installed installed SL 80486DX Not Not Not Installed installed installed installed CX486DX Installed Not Not Not installed installed installed CX486DXV Installed Not Not Not installed installed installed CX486DX2 Installed Not Not Not installed installed installed CX486DX2V Installed Not Not Not installed installed installed AM486DX2 Not Not Installed Not installed installed installed 80486DX2 Not Not Not Installed installed installed installed SL 80486DX2 Not Not Not Installed installed installed installed AM486DX4 Not Not Installed Not installed installed installed 80486DX4 Not Not Not Installed installed installed installed P24CT Not Installed Not Installed installed installed P24D Not Installed Not Installed installed installed CPU TYPE SELECTION Type JP3 All CPU types Pins 1 & 2 closed Cyrix CPUs only Pins 2 & 3 closed CPU TYPE SELECTION (AMD ONLY) Type J12 AM486DX2 Closed AM486DX4 Open CPU SPEED MULTIPLIER SELECTION (AMD ONLY) Multiplier J2 2x Closed 3x Open CPU VOLTAGE SELECTION Voltage JCV1 JCV2 CN6 3v 1 & 2 Open 7 & 8, 9 & 10 3.3v 2 & 3 Open 7 & 8, 9 & 10 3.45v Jumper together pin 2 on 7 & 8, 9 & 10 JCV1 and pin 2 on JCV2 3.6v Open 1 & 2 7 & 8, 9 & 10 4v Open 2 & 3 7 & 8, 9 & 10 5v Jumper together pin 2 on 1 & 2, 3 & 4, JCV1 and pin 2 on JCV2 13 & 14, 15 & 16 Note: Pins designated should be in the closed position. VL BUS WAIT STATE SELECTION Setting JV1 » 0 Pins 2 & 3 closed 1 Pins 1 & 2 closed VL BUS SPEED SELECTION Speed JV2 » <= 33MHz Pins 2 & 3 closed >33 MHz Pins 1 & 2 closed