MICRO-STAR INTERNATIONAL CO., LTD. MS-4129 (ISA 486 AL1), ALI 486 NONCACHE Processor CX486SX/80486SX/80487SX/AMD486DX/80486DX/80486DX2/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)MHz Speed Chip Set ALI Max. 112MB Onboard DRAM Cache None BIOS AMI Dimensions 220mm x 220mm I/O Options None NPU Options CX487 [Image] CONNECTIONS Purpose Location Purpose Location Keyboard connector J3 Turbo LED J5 (pins 12-13) External battery J4 Turbo switch J5 (pins 15-17) Power LED & keylock J5 (pins 1-5) Reset switch J5 (pins 19-20) Speaker J5 (pins 7-10) USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not CN1 Open alter » Factory configured - do not CN2 Open alter » Factory configured - do not CN3 Open alter » Battery type select internal J4 pins 2 & 3 closed Battery type select external J4 Closed » Monitor type select monochrome JP4 Open Monitor type select color JP4 pins 2 & 3 closed » CPU type select PGA JP28 Open CPU type select PQFP JP28 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 1MB (4) 256K x 9 NONE NONE 1MB NONE (1) 256K x 36 NONE 1MB NONE NONE (1) 256K x 36 1MB NONE (1) 256K x 36 NONE 2MB (4) 256K x 9 (1) 256K x 36 NONE 2MB NONE (1) 512K x 36 NONE 2MB NONE NONE (1) 512K x 36 2MB NONE (1) 256K x 36 (1) 256K x 36 2MB NONE (1) 512K x 36 NONE 3MB (4) 256K x 9 (1) 512K x 36 NONE 3MB (4) 256K x 9 (1) 256K x 36 (1) 256K x 36 3MB NONE (1) 256K x 36 (1) 512K x 36 3MB NONE (1) 512K x 36 (1) 256K x 36 4MB (4) 1M x 9 NONE NONE 4MB (4) 256K x 9 (1) 512K x 36 (1) 256K x 36 4MB NONE (1) 1M x 36 NONE 4MB NONE NONE (1) 1M x 36 4MB NONE (1) 512K x 36 (1) 512K x 36 4MB NONE (1) 1M x 36 NONE 5MB (4) 256K x 9 (1) 1M x 36 NONE 5MB NONE (1) 256K x 36 (1) 1M x 36 5MB NONE (1) 1M x 36 (1) 256K x 36 6MB (4) 256K x 9 (1) 256K x 36 (1) 1M x 36 6MB (4) 256K x 9 (1) 1M x 36 (1) 256K x 36 6MB (1) 1M x 9 (1) 256K x 36 (1) 256K x 36 6MB NONE (1) 512K x 36 (1) 1M x 36 7MB (4) 256K x 9 (1) 512K x 36 (1) 1M x 36 7MB (1) 1M x 9 (1) 512K x 36 (1) 256K x 36 8MB NONE (1) 2M x 36 NONE 8MB NONE NONE (1) 2M x 36 8MB NONE (1) 1M x 36 (1) 1M x 36 8MB NONE (1) 2M x 36 NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 9MB (4) 256K x 9 (1) 2M x 36 NONE 9MB (4) 256K x 9 (1) 1M x 36 (1) 1M x 36 9MB (1) 1M x 9 (1) 256K x 36 (1) 1M x 36 9MB (1) 1M x 9 (1) 1M x 36 (1) 256K x 36 9MB NONE (1) 256K x 36 (1) 2M x 36 10MB NONE (1) 512K x 36 (1) 2M x 36 10MB NONE (1) 2M x 36 (1) 256K x 36 10MB (4) 256K x 9 (1) 2M x 36 (1) 256K x 36 10MB (1) 1M x 9 (1) 512K x 36 (1) 1M x 36 10MB NONE (1) 2M x 36 (1) 512K x 36 12MB (1) 1M x 9 (1) 1M x 36 (1) 1M x 36 12MB NONE (1) 1M x 36 (1) 2M x 36 12MB NONE (1) 2M x 36 (1) 1M x 36 13MB (4) 256K x 9 (1) 2M x 36 (1) 1M x 36 13MB (1) 1M x 9 (1) 2M x 36 (1) 256K x 36 16MB (4) 4M x 9 NONE NONE 16MB (1) 1M x 9 (1) 2M x 36 (1) 1M x 36 16MB NONE (1) 4M x 36 NONE 16MB NONE NONE (1) 4M x 36 16MB NONE (1) 2M x 36 (1) 2M x 36 16MB NONE (1) 4M x 36 NONE 17MB (4) 256K x 9 (1) 4M x 36 NONE 17MB NONE (1) 256K x 36 (1) 4M x 36 17MB NONE (1) 4M x 36 (1) 256K x 36 18MB (4) 256K x 9 (1) 256K x 36 (1) 4M x 36 18MB (4) 256K x 9 (1) 4M x 36 (1) 256K x 36 18MB (1) 4M x 9 (1) 256K x 36 (1) 256K x 36 18MB NONE (1) 512K x 36 (1) 4M x 36 18MB (1) 4M x 36 NONE (1) 512K x 36 18MB NONE (1) 4M x 36 (1) 512K x 36 19MB (4) 256K x 9 (1) 512K x 36 (1) 4M x 36 19MB (1) 4M x 9 (1) 512K x 36 (1) 256K x 36 20MB NONE (1) 1M x 36 (1) 4M x 36 20MB NONE (1) 4M x 36 (1) 1M x 36 21MB (4) 256K x 9 (1) 1M x 36 (1) 4M x 36 21MB (4) 256K x 9 (1) 4M x 36 (1) 1M x 36 21MB (1) 1M x 9 (1) 256K x 36 (1) 4M x 36 21MB (1) 1M x 9 (1) 4M x 36 (1) 256K x 36 21MB (1) 4M x 9 (1) 256K x 36 (1) 1M x 36 21MB (1) 4M x 9 (1) 1M x 36 (1) 256K x 36 22MB (1) 1M x 9 (1) 512K x 36 (1) 4M x 36 22MB (1) 4M x 9 (1) 512K x 36 (1) 1M x 36 24MB (1) 1M x 9 (1) 1M x 36 (1) 4M x 36 24MB (1) 1M x 9 (1) 4M x 36 (1) 1M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 24MB (1) 4M x 9 (1) 1M x 36 (1) 1M x 36 24MB NONE (1) 2M x 36 (1) 4M x 36 24MB NONE (1) 4M x 36 (1) 2M x 36 25MB (4) 256K x 9 (1) 2M x 36 (1) 4M x 36 25MB (1) 4M x 9 (1) 2M x 36 (1) 256K x 36 28MB (1) 1M x 9 (1) 2M x 36 (1) 4M x 36 28MB (1) 4M x 9 (1) 2M x 36 (1) 1M x 36 32MB NONE (1) 8M x 36 NONE 32MB NONE NONE (1) 8M x 36 32MB NONE (1) 4M x 36 (1) 4M x 36 32MB NONE (1) 8M x 36 NONE 33MB (4) 256K x 9 (1) 8M x 36 NONE 33MB (4) 256K x 9 (1) 4M x 36 (1) 4M x 36 33MB (1) 4M x 9 (1) 256K x 36 (1) 4M x 36 33MB (1) 4M x 9 (1) 4M x 36 (1) 256K x 36 33MB NONE (1) 256K x 36 (1) 8M x 36 33MB NONE (1) 8M x 36 (1) 256K x 36 34MB (4) 256K x 9 (1) 8M x 36 (1) 256K x 36 34MB (1) 4M x 9 (1) 512K x 36 (1) 4M x 36 34MB NONE (1) 512K x 36 (1) 8M x 36 34MB NONE (1) 8M x 36 (1) 512K x 36 36MB (1) 1M x 9 (1) 4M x 36 (1) 4M x 36 36MB (1) 4M x 9 (1) 1M x 36 (1) 4M x 36 36MB (1) 4M x 9 (1) 4M x 36 (1) 1M x 36 36MB NONE (1) 1M x 36 (1) 8M x 36 36MB NONE (1) 8M x 36 (1) 1M x 36 37MB (4) 256K x 9 (1) 8M x 36 (1) 1M x 36 37MB (1) 1M x 9 (1) 8M x 36 (1) 256K x 36 40MB (1) 1M x 9 (1) 8M x 36 (1) 1M x 36 40MB (1) 4M x 9 (1) 2M x 36 (1) 4M x 36 40MB NONE (1) 2M x 36 (1) 8M x 36 40MB NONE (1) 8M x 36 (1) 2M x 36 48MB (1) 4M x 9 (1) 4M x 36 (1) 4M x 36 48MB NONE (1) 4M x 36 (1) 8M x 36 48MB NONE (1) 8M x 36 (1) 4M x 36 49MB (4) 256K x 9 (1) 8M x 36 (1) 4M x 36 49MB (1) 4M x 9 (1) 8M x 36 (1) 256K x 36 52MB (1) 1M x 9 (1) 8M x 36 (1) 4M x 36 52MB (1) 4M x 9 (1) 8M x 36 (1) 1M x 36 64MB (4) 16M x 9 NONE NONE 64MB (1) 4M x 9 (1) 8M x 36 (1) 4M x 36 64MB NONE (1) 8M x 36 (1) 8M x 36 66MB (4) 16M x 9 (1) 256K x 36 (1) 256K x 36 67MB (4) 16M x 9 (1) 512K x 36 (1) 256K x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 69MB (4) 16M x 9 (1) 256K x 36 (1) 1M x 36 69MB (4) 16M x 9 (1) 1M x 36 (1) 256K x 36 70MB (4) 16M x 9 (1) 512K x 36 (1) 1M x 36 72MB (4) 16M x 9 (1) 1M x 36 (1) 1M x 36 73MB (4) 16M x 9 (1) 2M x 36 (1) 256K x 36 76MB (4) 16M x 9 (1) 2M x 36 (1) 1M x 36 81MB (4) 16M x 9 (1) 256K x 36 (1) 4M x 36 81MB (4) 16M x 9 (1) 4M x 36 (1) 256K x 36 82MB (4) 16M x 9 (1) 512K x 36 (1) 4M x 36 84MB (4) 16M x 9 (1) 1M x 36 (1) 4M x 36 84MB (4) 16M x 9 (1) 4M x 36 (1) 1M x 36 88MB (4) 16M x 9 (1) 2M x 36 (1) 4M x 36 96MB (4) 16M x 9 (1) 4M x 36 (1) 4M x 36 97MB (4) 16M x 9 (1) 8M x 36 (1) 256K x 36 100MB (4) 16M x 9 (1) 8M x 36 (1) 1M x 36 112MB (4) 16M x 9 (1) 8M x 36 (1) 4M x 36 CPU TYPE CONFIGURATION Type JP10 JP14 80486SX Open pins 2 & 3 closed 80487SX pins 1 & 2 closed pins 1 & 2, 3 & 4 closed 80486DX/DX2 pins 2 & 3 closed pins 1 & 2, 3 & 4 closed CPU TYPE CONFIGURATION Type JP11 JP12 JP13 JP17 JP18 JP19 JP27 CX486SX/CX487SX Open 1 & 1 & 1 & 1 & 1 & Closed 2 2 2 2 2 Pentium Open 1 & 1 & 1 & 1 & 1 & Closed Overdrive 2 2 2 2 2 Note: Pins designated should be in the closed position. CPU SPEED CONFIGURATION Speed JP3 JP16 JP24 JP25 25MHz 1 & 2 1 & 2 1 & 2 3 & 4 33MHz 1 & 2 1 & 2 1 & 2 1 & 2, 5 & 6 40MHz 1 & 2 1 & 2 1 & 2 1 & 2, 3 & 4, 5 & 6 50iMHz 1 & 2 1 & 2 1 & 2 3 & 4 50MHz 2 & 3 2 & 3 2 & 3 3 & 4 66iMHz 1 & 2 1 & 2 1 & 2 1 & 2, 5 & 6 Note: Pins designated should be in the closed position.