ACHME COMPUTER, INC. MS-4136 Processor CX486S/SL80486SX/80486SX/AM486DX/CX486DX/SL80486DX/80486DX/ SL80486DX2/80486DX2/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)MHz Speed Chip Set SIS Max. 128MB Onboard DRAM Cache 128/256KB BIOS Phoenix Dimensions 330mm x 218mm I/O Options Floppy drive interface, game port, green PC connector, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse port CN1 Power LED & JFP1 pins 1 - keylock 5 Serial port 1 CN2 Speaker JFP1 pins 6 - 10 Serial port 2 CN3 Turbo LED JFP1 pins 12 - 13 Parallel port CN4 Turbo switch JFP1 pins 15 - 17 VGA port CN5 Reset switch JFP1 pins 19 - 20 Floppy drive CN6 IDE interface LED JFP1 pins 21 & interface 22 IDE interface CN7 Green PC connector JG1 (monitor) VGA feature CN8 Green PC LED JG2 connector Game interface CN9 Green PC connector JG3 External battery JB Riser Card SL1 USER CONFIGURABLE SETTINGS Function Jumper Position » Serial port 1 COM select COM1 JCOM1 pins 1 & 2 3F8 closed Serial port 1 COM select COM3 JCOM1 pins 2 & 3 3E8 closed » Serial port 1 COM select COM2 JCOM2 pins 1 & 2 2F8 closed Serial port 1 COM select COM4 JCOM2 pins 2 & 3 2E8 closed » Floppy drive interface enabled JFDD pins 1 & 2 closed Floppy drive interface disabled JFDD pins 2 & 3 closed » Game interface enabled JGAME pins 1 & 2 closed Game interface disabled JGAME pins 2 & 3 closed » IDE interface enabled JHDD pins 1 & 2 closed IDE interface disabled JHDD pins 2 & 3 closed » Parallel port LPT select LPT1 JPP1 pins 1 & 2 378 closed Parallel port LPT select LPT2 JPP1 pins 2 & 3 278 closed » Parallel port IRQ select IRQ7 JPP2 pins 1 & 2 closed Parallel port IRQ select IRQ5 JPP2 pins 2 & 3 closed » On board VGA enabled JVGA pins 1 & 2 closed On board VGA disabled JVGA pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x NONE NONE NONE 36 2MB (1) 256K x (1) 256K x NONE NONE 36 36 2MB (1) 512K x NONE NONE NONE 36 4MB (1) 256K x (1) 256K x (1) 512K x NONE 36 36 36 4MB (1) 512K x (1) 512K x NONE NONE 36 36 4MB (1) 1M x 36 NONE NONE NONE 5MB (1) 256K x (1) 1M x 36 NONE NONE 36 6MB (1) 256K x (1) 256K x (1) 1M x 36 NONE 36 36 6MB (1) 512K x (1) 1M x 36 NONE NONE 36 8MB (1) 256K x (1) 256K x (1) 512K x (1) 1M x 36 36 36 36 8MB (1) 512K x (1) 512K x (1) 1M x 36 NONE 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 8MB (1) 2M x 36 NONE NONE NONE 10MB (1) 256K x (1) 256K x (1) 1M x 36 (1) 1M x 36 36 36 12MB (1) 512K x (1) 512K x (1) 1M x 36 (1) 1M x 36 36 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE 16MB (1) 4M x 36 NONE NONE NONE 17MB (1) 256K x (1) 4M x 36 NONE NONE 36 18MB (1) 256K x (1) 256K x (1) 4M x 36 NONE 36 36 18MB (1) 512K x (1) 4M x 36 NONE NONE 36 20MB (1) 512K x (1) 512K x (1) 4M x 36 NONE 36 36 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 24MB (1) 512K x (1) 512K x (1) 1M x 36 (1) 4M x 36 36 36 24MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 NONE 24MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 NONE 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE NONE NONE 36MB (1) 512K x (1) 512K 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 (1) 1M x 36 (1) 8M x 36 NONE NONE 40MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 40MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 NONE 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 48MB (1) 4M x 36 (1) 8M x 36 NONE NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 16M x 36 NONE NONE NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 NONE 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 65MB (1) 256K x (1) 16M x 36 NONE NONE 36 68MB (1) 1M x 36 (1) 16M x 36 NONE NONE 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 NONE 72MB (1) 1M x 36 (1) 1M x 36 (1) 16M x NONE 36 72MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 80MB (1) 4M x 36 (1) 16M x 36 NONE NONE 80MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 NONE 96MB (1) 4M x 36 (1) 4M x 36 (1) 16M x NONE 36 96MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 NONE 128MB (1) 16M x 36 (1) 16M x 36 NONE NONE 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K or (1) 16K (1) 32K x 8 256KB (4) 64K x 8 NONE (1) 16K (1) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 16K (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JS1 JS2 JS3 128KB pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 256KB pins 2 & 3 pins 1 & 2 pins 1 & 2 closed closed closed 256KB pins 2 & 3 pins 1 & 2 pins 2 & 3 closed closed closed CPU TYPE CONFIGURATION Type JC1 80486SX pins 2 & 3, 5 & 6, 7 & 8 closed 80486DX pins 2 & 5, 4 & 7, 6 & 9 closed 80486DX2 pins 2 & 5, 4 & 7, 6 & 9 closed Pentium Overdrive pins 1 & 4, 2 & 5, 6 & 9 closed CPU TYPE CONFIGURATION Type JC2 JC3 JC4 JC5 Cyrix 2 & 3, 5 & 2 & 3, 5 & 2 & 3, 5 & 2 & 3, 5 & 6 6 6 6 AMD 6 & 7 6 & 7 6 & 7 6 & 7 Intel S-series 1 & 2, 6 & 1 & 2, 6 & 1 & 2, 6 & 1 & 2, 6 & 7 7 7 7 Intel 6 & 7 6 & 7 6 & 7 6 & 7 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JC6 JC7 Cyrix pins 1 & 2 closed pins 2 & 3 closed AMD pins 2 & 3 closed pins 1 & 2 closed Intel pins 2 & 3 closed pins 1 & 2 closed CPU SPEED CONFIGURATION Speed JK1 JK2 JK3 JK4 25MHz pins 2 & 3 Closed Closed Closed closed 33MHz pins 1 & 2 Closed Open Closed closed 40MHz pins 1 & 2 Closed Closed Open closed 50iMHz pins 2 & 3 Closed Closed Closed closed 50MHz pins 1 & 2 Open Closed Closed closed 66iMHz pins 1 & 2 Closed Open Closed closed CPU VOLTAGE CONFIGURATION Voltage JP24 3.3v pins 7 & 8, 9 &10 closed 5v pins 1 & 2, 3 & 4 closed VRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 512KB (1) 256K x 16 NONE NONE 1MB (1) 256K x 16 (1) 256K x 16 NONE 2MB (1) 256K x 16 (1) 256K x 16 (2) 256K x 16