CHAINTECH COMPUTER COMPANY, LTD. 4SPM.3/4SPM5.1 Processor 80486SX/ODP486SX/CX486DX/AM486DX/80486DX/UMCU5S/CX486DX2/ CX486DX2V/AM486DX2/(SL)AM486DX2/80486DX2/P24D/AM486DX4/ 80486DX4/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/83(internal)/ Speed 100(internal)MHz Chip Set UMC Max. 128MB Onboard DRAM Cache 128/256/512/1024KB BIOS Award Dimensions 250mm x 220mm I/O 32-bit PCI slots (3), floppy drive interface, game port, green PC connector, Options IDE interfaces (2), parallel port, serial ports (2) NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Floppy drive interface CN1 IDE interface LED 2 JP15 Serial port 1 CN2 Green PC LED JP27 Serial port 2 CN3 Green PC connector JP29 Parallel port CN4 Turbo switch JP35 Game port CN5 Turbo LED JP36 IDE interface 2 CN6 Speaker JP37 IDE interface 1 CN7 Reset switch JP44 External battery JP12 Power LED & keylock JP45 IDE interface LED 1 JP14 32-bit PCI slots PC1 - PC3 USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation JP13 pins 1 & 2 closed CMOS memory clear JP13 pins 2 & 3 closed » PCI bus clock select CPU clock JP21 pins 1 & 2 speed closed PCI bus clock select 1/2 CPU JP21 pins 2 & 3 clock speed 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) 512K x (1) 256K x NONE NONE 36 36 3MB (1) 256K x (1) 256K x (1) 256K x NONE 36 36 36 4MB (1) 512K 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 (1) 512K x NONE NONE 36 36 5MB (1) 1M x 36 (1) 256K x NONE NONE 36 5MB (1) 512K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x 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 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 8MB (1) 512K x (1) 512K x (1) 512K x (1) 512K x 36 36 36 36 9MB (1) 2M x 36 (1) 256K x NONE NONE 36 10MB (1) 2M x 36 (1) 256K x (1) 256K x NONE 36 36 10MB (1) 512K x (1) 1M x 36 (1) 1M x 36 NONE 36 10MB (1) 512K x (1) 2M x 36 NONE NONE 36 11MB (1) 2M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 12MB (1) 1M x 36 (1) 2M x 36 NONE NONE 12MB (1) 2M x 36 (1) 1M x 36 NONE NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 14MB (1) 512K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 16MB (1) 2M 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) 4M x 36 (1) 256K x NONE NONE 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x NONE 36 36 18MB (1) 512K x (1) 2M x 36 (1) 2M x 36 NONE 36 18MB (1) 512K x (1) 4M x 36 NONE NONE 36 19MB (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 20MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 NONE 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 20MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 24MB (1) 2M x 36 (1) 4M x 36 NONE NONE 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 NONE 24MB (1) 4M x 36 (1) 2M x 36 NONE NONE 24MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 NONE 26MB (1) 512K x (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 36 28MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 4M 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 33MB (1) 8M x 36 (1) 256K x NONE NONE 36 34MB (1) 8M x 36 (1) 256K x (1) 256K x NONE 36 36 34MB (1) 512K x (1) 4M x 36 (1) 4M x 36 NONE 36 34MB (1) 512K x (1) 8M x 36 NONE NONE 36 35MB (1) 8M x 36 (1) 256K x (1) 256K x (1) 256K 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 36MB (1) 8M x 36 (1) 1M x 36 NONE NONE 40MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 NONE 40MB (1) 2M x 36 (1) 8M x 36 NONE NONE 40MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 40MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 NONE 40MB (1) 8M x 36 (1) 2M x 36 NONE NONE 44MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 4M x 36 (1) 8M x 36 NONE NONE 48MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 NONE 48MB (1) 8M x 36 (1) 4M x 36 NONE NONE 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 50MB (1) 512K 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 56MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 56MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 64MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 64MB (1) 16M x 36 NONE NONE NONE 65MB (1) 16M x 36 (1) 256K x NONE NONE 36 66MB (1) 16M x 36 (1) 256K x (1) 256K x NONE 36 36 66MB (1) 512K x (1) 8M x 36 (1) 8M x 36 NONE 36 66MB (1) 512K x (1) 16M x 36 NONE NONE 36 67MB (1) 16M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 NONE 68MB (1) 1M x 36 (1) 16M x 36 NONE NONE 68MB (1) 16M x 36 (1) 1M x 36 NONE NONE 72MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 NONE 72MB (1) 2M x 36 (1) 16M x 36 NONE NONE 72MB (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 NONE 72MB (1) 16M x 36 (1) 2M x 36 NONE NONE 76MB (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 80MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 NONE 80MB (1) 4M x 36 (1) 16M x 36 NONE NONE 80MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 80MB (1) 16M x 36 (1) 2M x 36 (1) 2M x 36 NONE 80MB (1) 16M x 36 (1) 4M x 36 NONE NONE 88MB (1) 16M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 96MB (1) 8M x 36 (1) 16M x 36 NONE NONE 96MB (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 NONE 96MB (1) 16M x 36 (1) 8M x 36 NONE NONE 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 NONE 98MB (1) 512K x (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 36 100MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 104MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 112MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 112MB (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 128MB (1) 16M x 36 (1) 8M x 36 (1) 8M x 36 NONE 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 128MB (1) 16M x 36 (1) 16M x 36 NONE NONE Note: Board also accepts x 32 SIMMs. 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 512KB (A) (4) 64K x 8 (4) 64K x 8 (1) 32K x 8 512KB (B) (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 JP17 JP18 JP19 JP20 JP25 JP26 128KB 1 & 2 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 256KB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 1 & 2 (A) 256KB 1 & 2 2 & 3 1 & 2 1 & 2 2 & 3 1 & 2 (B) 512KB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 (A) 512KB 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 2 & 3 (B) 1MB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP31 JP32 JP38 JP39 80486SX pins 1 & 2 Closed N/A pins 1 & 2 closed closed ODP486SX pins 1 & 2 Closed N/A pins 1 & 2 closed closed CX486DX pins 1 & 2 Closed N/A pins 1 & 2 closed closed AM486DX pins 1 & 2 Closed N/A pins 1 & 2 closed closed 80486DX pins 1 & 2 Closed N/A pins 1 & 2 closed closed UMCU5S pins 2 & 3 Closed N/A pins 2 & 3 closed closed CX486DX2 pins 1 & 2 Closed N/A pins 1 & 2 closed closed CX486DX2V pins 1 & 2 Open pins 2 & 3 pins 1 & 2 closed closed closed AM486DX2 pins 1 & 2 Closed N/A pins 1 & 2 closed closed (SL)AM486DX2 pins 1 & 2 Open pins 1 & 2 pins 1 & 2 closed closed closed 80486DX2 pins 1 & 2 Closed N/A pins 1 & 2 closed closed P24D pins 1 & 2 Closed N/A pins 1 & 2 closed closed AM486DX4 pins 1 & 2 Open pins 1 & 2 pins 1 & 2 closed closed closed 80486DX4 pins 1 & 2 Open pins 1 & 2 pins 1 & 2 closed closed closed P24T pins 1 & 2 Closed N/A pins 1 & 2 closed closed CPU TYPE CONFIGURATION (CON’T) Type JP40 JP41 JP42 JP43 80486SX pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed ODP486SX pins 1 & 2 N/A pins 1 & 2 pins 2 & 3 closed closed closed CX486DX pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed AM486DX pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed 80486DX pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed UMCU5S pins 2 & 3 N/A pins 1 & 2 pins 1 & 2 closed closed closed CX486DX2 pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed CX486DX2V pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed AM486DX2 pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed (SL)AM486DX2 pins 1 & 2 Closed pins 2 & 3 pins 1 & 2 closed closed closed 80486DX2 pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed P24D pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed AM486DX4 pins 1 & 2 Open pins 1 & 2 pins 1 & 2 closed closed closed 80486DX4 pins 1 & 2 N/A pins 1 & 2 pins 1 & 2 closed closed closed P24T pins 1 & 2 N/A pins 1 & 2 pins 2 & 3 closed closed closed CPU TYPE CONFIGURATION (CON’T) Type J2 J3 J4 J5 J6 J7 80486SX Closed Open Open Open Closed Open ODP486SX Open Closed Open Open Closed Open CX486DX Open Closed Open Closed Open Open AM486DX Open Closed Open Open Closed Open 80486DX Open Closed Open Open Closed Open UMCU5S Closed Open Open Open Closed Open CX486DX2 Open Closed Open Closed Open Open CX486DX2V Open Closed Open Closed Open Open AM486DX2 Open Closed Open Open Closed Open (SL)AM486DX2 Open Closed Open Open Closed Open 80486DX2 Open Closed Open Open Closed Open P24D Open Open Closed Open Open Closed AM486DX4 Open Closed Open Open Closed Open 80486DX4 Open Closed Open Open Closed Open P24T Open Open Closed Open Open Closed CPU SPEED CONFIGURATION Speed JP22 JP23 25MHz pins 2 & 3 closed pins 2 & 3 closed 33MHz pins 1 & 2 closed pins 1 & 2 closed 40MHz pins 1 & 2 closed pins 2 & 3 closed 50iMHz pins 2 & 3 closed pins 2 & 3 closed 50MHz pins 2 & 3 closed pins 1 & 2 closed 66iMHz pins 1 & 2 closed pins 1 & 2 closed 75iMHz pins 2 & 3 closed pins 2 & 3 closed 80iMHz pins 1 & 2 closed pins 2 & 3 closed 83iMHz pins 1 & 2 closed pins 1 & 2 closed 100iMHz pins 1 & 2 closed pins 1 & 2 closed DMA CONFIGURATION DMA JP1 JP2 DMA 1 pins 1 & 2 closed pins 1 & 2 closed DMA 3 pins 2 & 3 closed pins 2 & 3 closed