ACHME COMPUTER, INC. MS-4144 Processor CX476S/SL80486SX/80486SX/CX486DX/SLAMD486DX/AM486DX/SL80486DX80486DX/AM486DX2/SL80486DX2/80486DX4 Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set SIS Max. 128MB Onboard DRAM Cache 128/256/512/1024KB BIOS AMI Dimensions 254mm x 218mm I/O 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel Options port, serial ports (2) NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Serial port 1 CN1 Turbo LED JFB1 pins 12 - 13 Serial port 2 CN2 Turbo switch JFB1 pins 15 - 17 Parallel port CN3 Reset switch JFB1 pins 19 - 20 Floppy drive CN4 IDE interface LED JFB1 pins 21 interface & 22 IDE interface CN5 Green PC LED JG1 pins 1 & (secondary) 2 IDE interface CN6 Green PC JG1 pins 3 & (primary) connector 4 External battery JBAT1 Green PC JG2 connector (monitor) Power LED & keylock JFB1 pins 1 Chassis fan power JFAN1 - 5 Speaker JFB1 pins 6 32-bit PCI slots PC1 - PC3 - 10 Note: The location of JFAN1 is unidentified. USER CONFIGURABLE SETTINGS Function Jumper Position » Battery type select internal JBAT1 pins 2 & 3 closed Battery type select external JBAT1 Closed » Factory configured - do not JM1 N/A alter » Factory configured - do not JV1 N/A alter 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 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 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 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 or (1) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 16K or (1) 32K x 8 256KB (4) 64K x 8 NONE (1) 16K or (1) 32K x 8 512KB (4) 64K x 8 (4) 64K x 8 (1) 32K x 8 512KB (4) 128K x 8 NONE (1) 32K x 8 1MB (4) 128K x 8 (4) 128K x 8 (1) 64K x 8 CACHE JUMPER CONFIGURATION Size JS1 JS2 JS3 JS4 128KB pins 1 & 2 pins 1 & 2 Open pins 2 & 3 closed closed closed 256KB pins 2 & 3 pins 1 & 2 Open pins 3 & 4 closed closed closed 256KB pins 2 & 3 pins 1 & 2 Open pins 1 & 2, 3 closed closed & 4 closed 512KB pins 2 & 3 pins 2 & 3 pins 1 & 2 pins 3 & 4 closed closed closed closed 512KB pins 2 & 3 pins 2 & 3 pins 1 & 2 pins 1 & 2, 3 closed closed closed & 4 closed 1MB pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 3 & 4 closed closed closed closed CPU TYPE CONFIGURATION Type JC5 JC6 JC7 JC8 CX486S pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed SL80486SX pins 4 & 5 pins 6 & 7 Open Open closed closed 80486SX pins 4 & 5 pins 6 & 7 Open Open closed closed CX486DX pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed SL AMD486DX pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed AM486DX pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed SL80486DX pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed 80486DX pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed AM486DX2 pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed SL80486DX2 pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed 80486DX2 pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed 80486DX2 (WB) pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed 80486DX4 pins 3 & 4, 5 pins 4 & 5, 6 Open Open & 6 closed & 7 closed CPU TYPE CONFIGURATION Type JC1 JC2 JC3 JC4 CX486S Not Installed Not Not installed installed installed SL80486SX Installed Not Not Not installed installed installed 80486SX Not Not Not Not installed installed installed installed CX486DX Not Installed Not Not installed installed installed SL AMD486DX Not Not Not Not installed installed installed installed AM486DX Not Not Not Not installed installed installed installed SL80486DX Installed Not Not Not installed installed installed 80486DX Not Not Not Not installed installed installed installed AM486DX2 Not Not Not Not installed installed installed installed SL80486DX2 Installed Not Not Not installed installed installed 80486DX2 Not Not Not Not installed installed installed installed 80486DX2 Installed Not Installed Not (WB) installed installed 80486DX4 Installed Not Not Not installed installed installed CPU SPEED CONFIGURATION Speed JK1 25MHz pins 7 & 8 closed 33MHz pins 1 & 2, 3 & 4, 7 & 8 closed 40MHz pins 3 & 4, 9 & 10 closed 50iMHz pins 7 & 8 closed 50MHz pins 1 & 2, 5 & 6, 9 & 10 closed 66iMHz pins 1 & 2, 3 & 4, 7 & 8 closed 75iMHz pins 7 & 8 closed 100iMHz pins 1 & 2, 3 & 4, 7 & 8 closed CPU VOLTAGE CONFIGURATION Voltage jcv3 jcv4 3.45v pins 1 & 2, 3 & 4, 5 & 6 Open closed 3.8v pins 1 & 2, 3 & 4, 5 & 6 Closed closed 5v pins 7 & 8, 9 & 10, 11 & Open 12 closed DACK/DRQ CONFIGURATION DACK/DRQ JDRQ1 DACK1/DRQ1 pins 1 & 2, 4 & 5 closed DACK3/DRQ3 pins 2 & 3, 5 & 6 closed