SOYO COMPUTER CO., LTD. 486PCI Processor CX486M7/80486SX/80486DX/80486DX2/80486DX4/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ Speed 100(internal)MHz Chip Set Unidentified Max. 128MB Onboard DRAM Cache 128/256/512KB BIOS Award Dimensions 254mm x 220mm I/O 32-bit VESA local bus slots (2), 32-bit PCI bus slots (4), green Options PC connector NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock J17 Turbo LED J22 Speaker J18 Green PC connector JP19 Reset switch J19 Green PC connector JP42 External battery J20 32-bit VESA local bus SL1 & SL2 slots Turbo switch J21 32-bit PCI bus slots PC1 - PC4 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select monochrome JP3 Open Monitor type select color JP3 Closed » CMOS memory normal operation JP5 pins 1 & 2 closed CMOS memory clear JP5 pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 2MB (1) 512K x NONE NONE NONE 36 4MB (1) 1M x 36 NONE NONE NONE 4MB (1) 512K x (1) 512K x NONE NONE 36 36 6MB (1) 512K x (1) 1M x 36 NONE NONE 36 6MB (1) 512K x (1) 512K x (1) 512K x NONE 36 36 36 8MB (1) 2M x 36 NONE NONE NONE 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 512K x (1) 512K x (1) 512K x (1) 512K x 36 36 36 36 10MB (1) 512K x (1) 1M x 36 NONE NONE 36 12MB (1) 1M x 36 (1) 2M x 36 NONE NONE 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 12MB (1) 512K x (1) 512K x (1) 2M x 36 NONE 36 36 14MB (1) 512K x (1) 1M x 36 (1) 2M x 36 NONE 36 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE 16MB (1) 4M x 36 NONE NONE NONE 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 18MB (1) 512K x (1) 2M x 36 (1) 2M x 36 NONE 36 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 20MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 NONE 20MB (1) 512K x (1) 512K x (1) 2M x 36 (1) 2M x 36 36 36 22MB (1) 512K x (1) 1M x 36 (1) 2M x 36 (1) 2M x 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 24MB (1) 1M x 36 (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 26MB (1) 512K x (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 36 28MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 28MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 8M x 36 NONE NONE NONE 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 2M x 36 (1) 2M x 36 (1) 4M x 36 NONE 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE 40MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 NONE 40MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 48MB (1) 2M x 36 (1) 2M x 36 (1) 8M x 36 NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 48MB (1) 2M x 36 (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 16M x 36 NONE NONE NONE 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 68MB (1) 1M x 36 (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 72MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 80MB (1) 2M x 36 (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 84MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 (1) 4M x 36 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 NONE 96MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 100MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 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 x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 16K x 8 or (1) 32K x 8 512KB (4) 128K x 8 NONE (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP22 JP24 JP27 JP30 128KB Closed Open Open pins 1 & 2 closed 256KB Closed Closed Open pins 2 & 3 closed 512KB Closed Closed Closed pins 1 & 2 closed CPU TYPE CONFIGURATION Type JP6 JP7 JP8 JP9 JP10 JP11 JP12 80486SX Open 2 & Open Open Open Open Open 3 CX486M7(sync) 1 & Open Open Open Open Open Open 2 CX486M7(async) 1 & Open Open Open Open Open Open 2 80486DX Open 2 & Open Open Open Open Open 3 SL80486DX Open 1 & Open Open Open Open Closed 2 80486DX2 Open 2 & Open Open Open Open Open 3 SL80486DX2 Open 1 & Open Open Open Open Closed 2 80486DX4 Open 1 & Open Open Open Open Closed 2 P24D 2 & 1 & Open 2 & Closed Closed Closed 3 2 3 P24T 2 & 1 & Open 1 & Open Open Closed 3 2 2 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP13 JP14 JP15 JP16 JP17 JP18 JP20 80486SX Open Open Open Open 2 & 2 & 2 & 3 3 3 CX486M7(sync) Open Open Closed 1 & Open 2 & 1 & 2 3 2, 3 & 4 CX486M7(async) Open Open Closed 1 & 1 & 2 & 1 & 2 2 3 2, 3 & 4 80486DX Open Open Open Open 1 & 2 & 1 & 2 3 2, 3 & 4 SL80486DX Closed Closed Open Open 1 & 1 & 1 & 2 2 2, 3 & 4 80486DX2 Open Open Open Open 1 & 2 & 1 & 2 3 2, 3 & 4 SL80486DX2 Open Open Open Open 1 & 2 & 1 & 2 3 2, 3 & 4 80486DX4 Closed Closed Open Open 1 & 1 & 1 & 2 2 2, 3 & 4 P24D Closed Closed Open Open 1 & 1 & 1 & 2 2 2, 3 & 4 P24T Closed Closed Open Open 1 & 1 & 1 & 2 2 2, 3 & 4 Note: Pins designated should be in the closed position. CPU SPEED CONFIGURATION Speed JP34 JP36 JP37 25MHz Open Open Open 33MHz Open Closed Closed 40MHz Open Closed Open 50iMHz Open Open Open 50MHz Open Open Closed 66iMHz Open Closed Closed 75iMHz Open Open Open 80iMHz Open Closed Open 100iMHz Open Closed Closed CPU VOLTAGE CONFIGURATION Voltage JP21 3.3v pins 1 & 2, 4 & 5, 7 & 8 closed 5.0v pins 2 & 3, 5 & 6, 8 & 9 closed VESA WAIT STATE CONFIGURATION Wait states JP2 0 wait states Open 1 wait state Closed BUS SPEED CONFIGURATION CPU speed JP1 <= 33MHz Open > 33MHz Closed PCI BUS CLOCK CONFIGURATION Mode JP31 JP32 Asynchronous pins 2 & 3 closed pins 2 & 3 closed Synchronous pins 1 & 2 closed pins 1 & 2 closed