DTK COMPUTER, INC. PKM-0037S Processor CX486M6/80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set Unidentified Max. Onboard 32MB DRAM Cache 64/128/256KB BIOS Unidentified Dimensions 254mm x 218mm I/O Options 32-bit VESA local bus slots (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock CN1 Reset switch CN5 Speaker CN2 External battery CN6 Turbo switch CN3 32-bit VESA local bus SL1 - SL2 slots Turbo LED CN4 Note: The location of CN1 - CN6 are unidentified. USER CONFIGURABLE SETTINGS Function Jumper Position » A20 Source type select chip JP17 pins 1 & 2 supported closed A20 Source type select 8042 JP17 pins 2 & 3 supported closed » Monitor type select color JP18 Open Monitor type select monochrome JP18 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 2MB (4) 512K x 9 NONE 4MB (4) 512K x 9 (4) 512K x 9 4MB (4) 1M x 9 NONE 6MB (4) 512K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 8MB (4) 2M x 9 NONE 16MB (4) 2M x 9 (4) 2M x 9 16MB (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 1 TAG 2 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 (1) 8K x 8 128KB (4) 32K x (4) 32K x (1) 8K x 8 (1) 8K x 8 8 8 256KB (4) 32K x (4) 32K x (1) 16K x 8 or (1) 16K x 8 or 8 8 (1) 32K x 8 (1) 32K x 8 Note: The location of TAG 2 is unidentified. CACHE JUMPER CONFIGURATION Size JP1 JP2 JP3 JP4 64KB pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed closed 128KB pins 2 & 3 pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed closed 256KB pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed CACHE JUMPER CONFIGURATION (CON’T) Size JP5 JP6 JP7 64KB pins 2 & 3 Open pins 1 & 2 closed closed 128KB pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed 256KB pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed CPU TYPE CONFIGURATION Type JP13 JP14 JP15 CX486M6 Open pins 2 & 3 Open closed 80486SX(PQFP) Open pins 2 & 3 Open closed 80486SX(PGA) Open pins 2 & 3 Open closed 80487SX pins 2 & 3 pins 1 & 2 Closed closed closed 80486DX pins 1 & 2 pins 1 & 2 Closed closed closed 80486DX2 pins 1 & 2 pins 1 & 2 Closed closed closed Pentium Overdrive pins 2 & 3 pins 1 & 2 Closed closed closed CPU TYPE CONFIGURATION Type JP16 JP27 CX486M6 Closed pins 2 & 3 closed 80486SX(PQFP) Open pins 1 & 2 closed 80486SX(PGA) Closed pins 2 & 3 closed 80487SX Closed pins 1 & 2 closed 80486DX Closed pins 1 & 2 closed 80486DX2 Closed pins 1 & 2 closed Pentium Overdrive Closed pins 1 & 2 closed CPU SPEED CONFIGURATION Speed JP20 JP21 JP22 20MHz Open Open Open 25MHz Open Open Closed 33MHz Closed Closed Closed 40MHz Open Closed Closed 50iMHz Open Open Closed 50MHz Closed Open Open 66iMHz Closed Closed Closed VESA WAIT STATE CONFIGURATION Wait states JP9 JP11 0 wait states pins 1 & 2 closed pins 1 & 2 closed 1 wait state pins 2 & 3 closed pins 2 & 3 closed BUS SPEED CONFIGURATION CPU speed JP8 JP10 <= 33MHz pins 1 & 2 closed pins 1 & 2 closed > 33MHz pins 2 & 3 closed pins 2 & 3 closed