FIRST INTERNATIONAL COMPUTER, INC. 486-PVT (REV. B1) Processor CX486SX/80486SX/SL80486SX/AM486DX/AM486DXSL/80486DX/CX486DX/ CX486DXV/CX486DX2/CX486DX2VAM486DX2/AM486DX2SL/80486DX2/ 80486DX4/P24CT/P24D/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set VIA Max. 128MB Onboard DRAM Cache 128/256/512KB BIOS Award Dimensions 254mm x 218mm I/O 32-bit VESA local bus slots (2), green PC connector Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Daughter board CN6 Speaker J8 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 bus SL1 & SL2 slots Reset switch J7 USER CONFIGURABLE SETTINGS Function Jumper Position AMD CPU speed select 2x J2 Closed AMD CPU speed select 3x J2 Open AMD CPU type select DX2 J12 Open AMD CPU type select DX4 J12 Closed CMOS memory normal operation JCP Open CMOS memory clear JCP Closed Monitor type select JP1 Open monochrome/EGA/VGA Monitor type select color JP1 Closed Factory configured - do not alter JP2 N/A CPU type select all CPU types JP3 pins 1 & 2 closed CPU type select Cyrix CPU only JP3 pins 2 & 3 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) 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 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 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 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 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 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 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 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 x 8 or (1) 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 TYPE CONFIGURATION 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 AM486DXSL 1 & 2 1 & 2 1 & 2 Open 1 & 2 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 AM486DX2SL 1 & 2 1 & 2 1 & 2 Open 1 & 2 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 CONFIGURATION 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 CX486DX Installed Not Not Not installed installed installed CX486DXV Installed Not Not Not installed installed installed 80486DX Not Not Not Installed installed installed installed SL80486DX Not Not Not Installed installed installed installed AM486DX2 Not Not Installed Not installed installed installed CX486DX2 Installed Not Not Not installed installed installed CX486DX2V Installed Not Not Not installed installed installed 80486DX2 Not Not Not Installed installed installed installed SL80486DX2 Not Not Not Installed installed installed installed 80486DX4 Not Not Not Installed installed installed installed AM486DX4 Not Not Installed Not installed installed installed P24D Not Installed Not Installed installed installed Pentium Not Installed Not Installed Overdrive installed installed Note: The locations of RN16 - RN19 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 VOLTAGE CONFIGURATION Voltage JCV1 JCV2 3v pins 1 & 2 closed Open 3.3v pins 2 & 3 closed Open 3.45v Open Open 3.6v Open pins 1 & 2 closed 4v Open pins 2 & 3 closed 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 DAUGHTER BOARD CONFIGURATION Setting CN6 Not installed pins 1 & 2, 3 & 4, 13 & 14, 15 & 16 closed Installed Closed