DTK COMPUTER, INC. PKM-0038S (VER. 3) Processor CX486S/80486SX/SL80486SX/CX486DX/AM486DXL/80486DX/ SL80486DX/AM486(PLUS)/AM486DXL2/CX486DX2/AM486DX2(PLUS)/80486DX2/SL80486DX2/80486DX4/P24D/P24T Processor 20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz Speed Chip Set Unidentified Video Chip None Set Maximum 128MB Onboard Memory Maximum None Video Memory Cache 128/256/512KB BIOS Award Dimensions 260mm x 220mm I/O 32-bit VESAI slots (3), green PC connector Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 Reset switch J6 Green PC connector J2 Power LED & keylock J7 Turbo switch J3 Green PC connector JP26 Turbo LED J4 Green PC LED JP27 Speaker J5 32-bit VESA local bus SL1 - SL3 slots USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP16 Pins 1 & 2 closed CMOS memory clear JP16 Pins 2 & 3 closed » Monitor type select JP17 Open monochrome/EGA/VGA Monitor type select CGA JP17 Closed » CPU clock delay select CLKIN delayed JP20 Pins 2 & 3 for CPUCLK closed CPU clock delay select CLKIN = JP20 Pins 1 & 2 CPUCLK closed » Factory configured - do not alter JP32 Pins 1 & 2 closed » Factory configured - do not alter JP35 Pins 2 & 3 closed » Keyboard clock select asynchronous JPX1 Open mode Keyboard clock select synchronous JPX1 Closed mode 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 4MB (1) 256K x (1) 256K x (1) 512K x None 36 36 36 4MB (1) 512K x (1) 512K x None None 36 36 4MB (1) 1M x 36 None None None 5MB (1) 256K x (1) 1M x 36 None None 36 6MB (1) 256K x (1) 256K x (1) 1M x 36 None 36 36 6MB (1) 512K x (1) 1M x 36 None None 36 8MB (1) 256K x (1) 256K x (1) 512K x (1) 1M x 36 36 36 36 8MB (1) 512K x (1) 512K x (1) 1M x 36 None 36 36 8MB (1) 1M x 36 (1) 1M x 36 None None 8MB (1) 2M x 36 None None None 10MB (1) 256K x (1) 256K x (1) 1M x 36 (1) 1M x 36 36 36 12MB (1) 512K x (1) 512K x (1) 1M x 36 (1) 1M x 36 36 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 None 12MB (1) 1M 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 16MB (1) 4M x 36 None None None 16MB (1) 2M x 36 (1) 2M x 36 None None DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 16MB (1) 1M x 36 (1) 1M x 36 (1) 2M x 36 None 17MB (1) 256K x (1) 4M x 36 None None 36 18MB (1) 256K x (1) 256K x (1) 4M x 36 None 36 36 18MB (1) 512K x (1) 4M x 36 None None 36 20MB (1) 512K x (1) 512K x (1) 4M x 36 None 36 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 24MB (1) 512K x (1) 512K x (1) 1M x 36 (1) 4M x 36 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 24MB (1) 2M x 36 (1) 4M x 36 None None 28MB (1) 1M 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 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) 512K x (1) 512K x (1) 4M x 36 (1) 4M 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 40MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 40MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 None 40MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 4M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 None 48MB (1) 4M x 36 (1) 8M x 36 None None 48MB (1) 2M x 36 (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 48MB (1) 2M x 36 (1) 2M x 36 (1) 8M x 36 None 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 16M x 36 None None None 64MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 None 64MB (1) 8M x 36 (1) 8M x 36 None None 65MB (1) 256K x (1) 16M x 36 None None 36 68MB (1) 1M x 36 (1) 16M x 36 None None 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 None 72MB (1) 1M x 36 (1) 1M x 36 (1) 16M x None 36 72MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 80MB (1) 4M x 36 (1) 16M x 36 None None 80MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 None 80MB (1) 2M x 36 (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 96MB (1) 4M x 36 (1) 4M x 36 (1) 16M x None 36 96MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 None 128MB (1) 16M x 36 (1) 16M x 36 None None 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 (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 (4) 128K x 8 None (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP1 JP2 JP3 JP4 JP33 128KB 1 & 2 1 & 2 1 & 2, 3 1 & 2 2 & 3 & 4 256KB (A) 2 & 3 2 & 3 2 & 3, 4 1 & 2 2 & 3 & 5 256KB (B) 1 & 2 2 & 3 1 & 2, 3 1 & 2 1 & 2 & 4 512KB 1 & 2 2 & 3 1 & 2, 3 2 & 3 2 & 3 & 4 CPU SPEED SELECTION (AV9107) Speed JP5 JP6 JP7 20MHz Closed Open Closed 25MHz Closed Closed Open 33MHz Open Closed Closed 40MHz Closed Open Open 50iMHz Closed Closed Open 50MHz Open Open Closed 66iMHz Open Closed Closed 75iMHz Closed Closed Open 80iMHz Closed Open Open 100iMHz Open Closed Closed CPU SPEED SELECTION (MX8315) Speed JP5 JP6 JP7 20MHz Open Open Open 25MHz Open Closed Open 33MHz Closed Closed Closed 40MHz Open Closed Closed 50iMHz Open Closed Open 50MHz Closed Open Open 66iMHz Closed Closed Closed 75iMHz Open Closed Open 80iMHz Open Closed Closed 100iMHz Closed Closed Closed CPU TYPE SELECTION Type JP8 JP10 JP11 JP12 JP13 CX486S 2 & 3 2 & 3 Open 2 & 3, 4 Open & 5 80486SX 2 & 3 2 & 3 Open Open Open SL80486SX 2 & 3 2 & 3 Open 3 & 4 1 & 2 CX486DX 1 & 2, 2 & 3 3 & 4 2 & 3 Open 3 & 4 AM486DXL 1 & 2, 2 & 3 1 & 2, 3 Open Open 3 & 4 & 4 80486DX 1 & 2, 2 & 3 3 & 4 Open Open 3 & 4 SL80486DX 1 & 2, 2 & 3 3 & 4 3 & 4 1 & 2 3 & 4 AM486DX (PLUS) 1 & 2, 2 & 3 3 & 4 3 & 4 4 & 5 3 & 4 AM486DXL2 1 & 2, 2 & 3 1 & 2, 3 Open Open 3 & 4 & 4 CX486DX2 1 & 2, 2 & 3 3 & 4 2 & 3 Open 3 & 4 AM486DX2 (PLUS) 1 & 2, 2 & 3 3 & 4 3 & 4 4 & 5 3 & 4 80486DX2 1 & 2, 2 & 3 3 & 4 Open Open 3 & 4 SL80486DX2 1 & 2, 2 & 3 3 & 4 3 & 4 1 & 2 3 & 4 80486DX4 1 & 2, 2 & 3 3 & 4 3 & 4 1 & 2 3 & 4 P24D 1 & 2, 1 & 2 3 & 4 1 & 2, 3 2 & 3 3 & 4 & 4 P24T 1 & 2, 1 & 2 2 & 3 3 & 4 Open 3 & 4 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON’T) Type JP14 JP15 JP21 JP22 JP24 CX486S 1 & 2, 3 2 & 3 1 & 2 2 & 3 2 & 3 & 4 80486SX Open Open 2 & 3 1 & 2 Open SL80486SX 2 & 3 4 & 5 2 & 3 1 & 2 Open CX486DX 1 & 2 2 & 3 1 & 2 2 & 3 2 & 3 AM486DXL Open Open 1 & 2 2 & 3 3 & 4 80486DX Open Open 2 & 3 1 & 2 Open SL80486DX 2 & 3 4 & 5 2 & 3 1 & 2 Open AM486DX (PLUS) 2 & 3 4 & 5 1 & 2 1 & 2 Open AM486DXL2 Open Open 1 & 2 2 & 3 3 & 4 CX486DX2 1 & 2 2 & 3 1 & 2 2 & 3 2 & 3 AM486DX2 (PLUS) 2 & 3 4 & 5 1 & 2 1 & 2 Open 80486DX2 Open Open 2 & 3 1 & 2 Open SL80486DX2 2 & 3 4 & 5 2 & 3 1 & 2 Open 80486DX4 2 & 3 4 & 5 2 & 3 1 & 2 Open P24D 2 & 3 4 & 5 1 & 2 1 & 2 Open P24T 2 & 3 1 & 2 1 & 2 1 & 2 1 & 2 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON’T) Type JP25 JP30 JP31 JP34 JP36 CX486S 2 & 3 Open Open 1 & 2 Closed 80486SX Open Open Open Open Closed SL80486SX Open Open Open 1 & 2 Closed CX486DX 2 & 3 Open Open 1 & 2 Closed AM486DXL Open Open Open 2 & 3 Closed 80486DX Open Open Open Open Closed SL80486DX Open Open Open 1 & 2 Closed AM486DX (PLUS) 1 & 2 Open 2 & 3 1 & 2 Closed AM486DXL2 Open Open Open 2 & 3 Closed CX486DX2 2 & 3 Open Open 1 & 2 Closed AM486DX2 1 & 2 Open 2 & 3 1 & 2 Closed (PLUS) 80486DX2 Open Open Open Open Closed SL80486DX2 Open Open Open 1 & 2 Closed 80486DX4 3 & 4 Open Open 1 & 2 Open P24D 1 & 2 Closed 1 & 2 1 & 2 Closed P24T 1 & 2 Open Open 1 & 2 Closed Note: Pins designated should be in the closed position. VL BUS WAIT STATE SELECTION Setting JP28 0 Pins 1 & 2 closed » 1 Pins 2 & 3 closed VL BUS SPEED SELECTION Setting JP29 <= 33MHz Pins 1 & 2 closed » >33 MHz Pins 2 & 3 closed