DTK COMPUTER, INC. GRAFIKA 4V2 Processor 80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set SIS Max. Onboard DRAM32MB Cache 64/128/256KB BIOS AMI/Award/DTK Dimensions 260mm x 220mm 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 USER CONFIGURABLE SETTINGS Function Jumper Position » Battery type select external JP12 pins 1 & 2 closed Battery type select internal JP12 pins 2 & 3 closed » CPU type select PGA JP16 Closed CPU type select PQFP JP16 Open » A20 chip supported JP17 pins 1 & 2 closed 8042 chip supported JP17 pins 2 & 3 closed » Monitor type select monochrome JP18 Closed Monitor type select color JP18 Open 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) 1M x 9 NONE 4MB (4) 512K x 9 (4) 512K x 9 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) 4M x 9 NONE 16MB (4) 2M x 9 (4) 2M x 9 18MB (4) 512K x 9 (4) 4M x 9 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 (U14) TAG (U15) 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 (1) 8K x 8 128KB (4) 32K x NONE (1) 8K x 8 (1) 8K x 8 8 256KB (4) 32K x (4) 32K x 8 (1) 16K or (1) (1) 16K or (1) 8 32K x 8 32K x 8 CACHE JUMPER CONFIGURATION Size JP1 JP2 JP3 JP4 JP5 JP6 JP7 64KB 1 & 2 1 & 2 1 & 2 1 & 2 2 & 3 Open 1 & 2 128KB 2 & 3 1 & 2 2 & 3 1 & 2 1 & 2 1 & 2 2 & 3 256KB 2 & 3 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 JP13 JP14 JP15 80486SX 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 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 VL 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