ACHME COMPUTER, INC. MS-4135 Processor AM486SX/80486SX/CX486M7/AM486DX/80486DX/AM486DX2/80486DX2/ 80486DX4/Pentium Overdrive Processor 25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz Speed Chip Set Contaq Max. 64MB Onboard DRAM Cache 128/256KB BIOS AMI/Award Dimensions 270mm x 220mm I/O 32-bit PCI slots (4), green PC connector Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery JBA Speaker JM9 pins 7 - 10 Green PC connector JG1 Turbo LED JM9 pins 12 & (monitor) 13 Green PC connector JG2 Turbo switch JM9 pins 15 - 17 Green PC LED JG3 Reset switch JM9 pins 19 & 20 Power LED & keylock JM9 pins 1 - 32-bit PCI PC1 - PC4 5 slots USER CONFIGURABLE SETTINGS Function Jumper Position » Battery type select internal JBA pins 2 & 3 closed Battery type select external JBA Closed CX486M7 3.3v not installed JC8 Open CX486M7 3.3v installed JC8 Closed » Factory configured - do not JK8 pins 1 & 2 alter 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 3MB (1) 256K x (1) 256K x (1) 256K x NONE 36 36 36 4MB (1) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 4MB (1) 1M x 36 NONE NONE NONE 4MB (1) 512K x NONE (1) 512K x NONE 36 36 5MB (1) 256K x (1) 1M x 36 NONE NONE 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x NONE 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) 2M x 36 NONE NONE NONE 9MB (1) 256K x (1) 1M x 36 (1) 1M x 36 NONE 36 10MB (1) 2M x 36 NONE (1) 512K x NONE 36 10MB (1) 512K x NONE (1) 2M x 36 NONE 36 10MB (1) 2M x 36 NONE (1) 512K x NONE 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 13MB (1) 256K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 4M x 36 NONE NONE NONE 16MB (1) 2M x 36 NONE (1) 2M x 36 NONE 16MB (1) 2M x 36 NONE (1) 2M x 36 NONE 17MB (1) 256K x (1) 4M x 36 NONE NONE 36 17MB (1) 4M x 36 (1) 256K x NONE NONE 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x NONE 36 36 19MB (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 NONE 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE NONE NONE 33MB (1) 256K x (1) 4M x 36 (1) 4M x 36 NONE 36 34MB (1) 8M x 36 NONE (1) 512K x NONE 36 34MB (1) 512K x NONE (1) 8M x 36 NONE 36 34MB (1) 8M x 36 NONE (1) 512K x NONE 36 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 40MB (1) 8M x 36 NONE (1) 2M x 36 NONE 40MB (1) 2M x 36 NONE (1) 8M x 36 NONE 40MB (1) 2M x 36 NONE (1) 8M x 36 NONE 40MB (1) 8M x 36 NONE (1) 2M x 36 NONE 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 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 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 NONE (1) 8M x 36 NONE 64MB (1) 8M x 36 NONE (1) 8M x 36 NONE CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (A) (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 256KB (B) (4) 64K x 8 NONE (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 (A) pins 2 & 3 pins 1 & 2 pins 2 & 3 closed closed closed 256KB (B) pins 2 & 3 pins 1 & 2 pins 1 & 2 closed closed closed CPU TYPE CONFIGURATION Type JC5 JC7 JC25 80486SX pins 2 & 3 Open Closed closed AM486SX pins 2 & 3 Open Closed closed AM486DX pins 1 & 2, 3 & pins 2 & 3 Closed 4 closed closed 80486DX pins 1 & 2, 3 & pins 2 & 3 Closed 4 closed closed AM486DX2 pins 1 & 2, 3 & pins 2 & 3 Closed 4 closed closed 80486DX2 pins 1 & 2, 3 & pins 2 & 3 Closed 4 closed closed 80486DX4 pins 1 & 2, 3 & pins 2 & 3 Open 4 closed closed Pentium Overdrive pins 1 & 2, 3 & pins 1 & 2 Closed 4 closed closed CPU SPEED CONFIGURATION Speed JC12 JK1 JK2 JK3 JK7 25MHz Open Open Open Closed 1 & 2 33MHz Open Closed Closed Open 1 & 2 40MHz Closed Open Closed Open 2 & 3 50iMHz Open Open Open Closed 1 & 2 66iMHz Open Closed Closed Open 1 & 2 75iMHz Open Open Open Closed 1 & 2 100iMHz Open Closed Closed Open 1 & 2 Note: Pins designated should be in the closed position. PCI IRQ CONFIGURATION (SLOT 1) Card type/slot # INT/IRQ JP1 JP2 NCR slot 2 IRQ11/INTA pins 10 & 11 pins 7 & 8 closed closed Adaptec slot 2 IRQ11/INTA pins 10 & 11 pins 7 & 8 closed closed Bus Logic SCSI IRQ11/INTA pins 10 & 11 pins 7 & 8 slot 2 closed closed SCSI slot 1 IRQ9/INTB pins 8 & 9, 10 pins 2 & 3, 7 & & 11 closed 8 closed SCSI slot 4 IRQ9/INTC pins 5 & 6, 10 pins 2 & 3, 7 & & 11 closed 8 closed SCSI slot 1 IRQ9/INTA pins 1 & 2, 11 pins 1 & 2, 8 & & 12 closed 9 closed Edge Trigger IRQ14/INTD pins 2 & 3 pins 16 & 17 slot 1 closed closed Level Trigger IRQ14/INTD pins 2 & 3 pins 17 & 18 slot 1 closed closed