AMPTRON INTERNATIONAL, INC. DX-6900 VER. 1.9 Processor AM486SX/80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/ AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4 Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set Unidentified Max. 64MB Onboard DRAM Cache 64/128/256/512/1024KB BIOS AMI Dimensions 254mm x 218mm I/O 32-bit VESA local bus slots (3), green PC connector Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery JP1 Reset switch JP20 Power LED & keylock JP15 Turbo switch JP22 Speaker JP18 Green PC connector JP23 Turbo LED JP19 32-bit VESA local bus SL1 - SL3 slots USER CONFIGURABLE SETTINGS Function Jumper Position » Battery type select internal JP1 Closed Battery type select external JP1 pins 2 & 3 closed CMOS memory clear JP1 pins 3 & 4 closed » Factory configured - do not JP2 pins 2 & 3 alter closed » Factory configured - do not JP3 Open alter » Factory configured - do not JP31 Open alter » Factory configured - do not JP36 Closed alter DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 1MB (4) 256K x 9 NONE NONE 1MB NONE (1) 256K x 36 NONE 2MB (4) 256K x 9 (1) 256K x 36 NONE 2MB NONE (1) 256K x 36 (1) 256K x 36 2MB NONE (1) 512K x 36 NONE 3MB (4) 256K x 9 (1) 256K x 36 (1) 256K x 36 3MB NONE (1) 256K x 36 (1) 512K x 36 3MB NONE (1) 512K x 36 (1) 256K x 36 4MB (4) 1M x 9 NONE NONE 4MB NONE (1) 512K x 36 (1) 512K x 36 4MB NONE (1) 1M x 36 NONE 5MB (4) 256K x 9 (1) 1M x 36 NONE 5MB (4) 1M x 9 (1) 256K x 36 NONE 5MB NONE (1) 256K x 36 (1) 1M x 36 5MB NONE (1) 1M x 36 (1) 256K x 36 6MB (4) 256K x 9 (1) 256K x 36 (1) 1M x 36 6MB (4) 1M x 9 (1) 256K x 36 (1) 256K x 36 6MB NONE (1) 512K x 36 (1) 1M x 36 6MB NONE (1) 1M x 36 (1) 512K x 36 8MB (4) 1M x 9 (1) 1M x 36 NONE 8MB NONE (1) 1M x 36 (1) 1M x 36 8MB NONE (1) 2M x 36 NONE 9MB (4) 1M x 9 (1) 256K x 36 (1) 1M x 36 9MB (4) 1M x 9 (1) 1M x 36 (1) 256K x 36 9MB NONE (1) 256K x 36 (1) 2M x 36 9MB NONE (1) 2M x 36 (1) 256K x 36 10MB NONE (1) 512K x 36 (1) 2M x 36 10MB NONE (1) 2M x 36 (1) 512K x 36 12MB (4) 1M x 9 (1) 1M x 36 (1) 1M x 36 12MB NONE (1) 1M x 36 (1) 2M x 36 12MB NONE (1) 2M x 36 (1) 1M x 36 16MB (4) 4M x 9 NONE NONE 16MB NONE (1) 2M x 36 (1) 2M x 36 16MB NONE (1) 4M x 36 NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 17MB (4) 256K x 9 (1) 4M x 36 NONE 17MB (4) 4M x 9 (1) 256K x 36 NONE 17MB NONE (1) 256K x 36 (1) 4M x 36 17MB NONE (1) 4M x 36 (1) 256K x 36 18MB (4) 256K x 9 (1) 256K x 36 (1) 4M x 36 18MB (4) 256K x 9 (1) 1M x 36 (1) 256K x 36 18MB (4) 256K x 9 (1) 4M x 36 (1) 256K x 36 18MB NONE (1) 512K x 36 (1) 4M x 36 18MB NONE (1) 4M x 36 (1) 512K x 36 20MB (4) 1M x 9 (1) 4M x 36 NONE 20MB (4) 4M x 9 (1) 1M x 36 NONE 20MB NONE (1) 1M x 36 (1) 4M x 36 20MB NONE (1) 4M x 36 (1) 1M x 36 21MB (4) 256K x 9 (1) 1M x 36 (1) 4M x 36 21MB (4) 256K x 9 (1) 4M x 36 (1) 1M x 36 21MB (4) 1M x 9 (1) 256K x 36 (1) 4M x 36 21MB (4) 1M x 9 (1) 4M x 36 (1) 256K x 36 24MB (4) 1M x 9 (1) 1M x 36 (1) 4M x 36 24MB (4) 1M x 9 (1) 4M x 36 (1) 1M x 36 24MB NONE (1) 2M x 36 (1) 4M x 36 24MB NONE (1) 4M x 36 (1) 2M x 36 32MB (4) 4M x 9 (1) 4M x 36 NONE 32MB NONE (1) 4M x 36 (1) 4M x 36 32MB NONE (1) 8M x 36 NONE 33MB (4) 256K x 9 (1) 4M x 36 (1) 4M x 36 33MB NONE (1) 256K x 36 (1) 8M x 36 33MB NONE (1) 8M x 36 (1) 256K x 36 34MB NONE (1) 512K x 36 (1) 8M x 36 34MB NONE (1) 8M x 36 (1) 512K x 36 36MB (4) 1M x 9 (1) 4M x 36 (1) 4M x 36 36MB NONE (1) 1M x 36 (1) 8M x 36 36MB NONE (1) 8M x 36 (1) 1M x 36 40MB NONE (1) 2M x 36 (1) 8M x 36 40MB NONE (1) 8M x 36 (1) 2M x 36 48MB NONE (1) 4M x 36 (1) 8M x 36 48MB NONE (1) 8M x 36 (1) 4M x 36 64MB (4) 16M x 9 NONE NONE 64MB NONE (1) 16M x 36 NONE 64MB NONE NONE (1) 16M x 36 64MB NONE (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 256KB (4) 64K x 8 NONE (1) 32K x 8 512KB (4) 64K x 8 (4) 64K x 8 (1) 32K x 8 512KB (4) 128K x 8 NONE (1) 32K x 8 1MB (4) 128K x 8 (4) 128K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP5 JP10 64KB pins 2 & 3 closed pins 2 & 3 closed 128KB pins 1 & 2 closed pins 1 & 2 closed 256KB pins 2 & 3 closed pins 2 & 3 closed 256KB pins 1 & 2, 3 & 4 pins 1 & 2 closed closed 512KB pins 2 & 3, 4 & 5 pins 2 & 3 closed closed 512KB pins 1 & 2, 3 & 4, 5 & pins 1 & 2 closed 6 closed 1MB pins 2 & 3, 4 & 5, 6 & pins 2 & 3 closed 7 closed CACHE JUMPER CONFIGURATION (CON’T) Size JP11 JP12 JP13 JP14 64KB Open Open Open Open 128KB Open Open Open Closed 256KB Open Open Closed Closed 256KB Open Open Closed Closed 512KB Open Closed Closed Closed 512KB Open Closed Closed Closed 1MB Closed Closed Closed Closed CPU TYPE CONFIGURATION Type JP27 JP28 JP29 JP30 AM486SX Open 2 & 3 Open Open 80486SX Open 2 & 3 Open Open CX486DX 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 AM486DX Open 2 & 3 Open Open 80486DX Open 2 & 3 Open Open SL80486DX 1 & 2, 3 1 & 2 1 & 2 5 & 6 & 4 CX486DX2 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 CX486DX2V-80 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 AM486DX2 Open 2 & 3 Open Open 80486DX2 Open 2 & 3 Open Open SL80486DX2 1 & 2, 3 1 & 2 1 & 2 5 & 6 & 4 AM486DX4 Open 2 & 3 Open Open 80486DX4 1 & 2, 3 1 & 2 1 & 2 5 & 6 & 4 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP32 JP33 JP34 JP35 AM486SX Open 2 & 3 Closed Closed 80486SX Open 2 & 3 Closed Closed CX486DX 1 & 2 1 & 2, 3 & Open Closed 4 AM486DX 1 & 2 1 & 2, 3 & Closed Closed 4 80486DX 1 & 2 1 & 2, 3 & Closed Closed 4 SL80486DX 1 & 2 1 & 2, 3 & Open Closed 4 CX486DX2 1 & 2 1 & 2, 3 & Open Closed 4 CX486DX2V-80 1 & 2 1 & 2, 3 & Open Open 4 AM486DX2 1 & 2 1 & 2, 3 & Closed Closed 4 80486DX2 1 & 2 1 & 2, 3 & Closed Closed 4 SL80486DX2 1 & 2 1 & 2, 3 & Open Closed 4 AM486DX4 1 & 2 1 & 2, 3 & Open Closed 4 80486DX4 1 & 2 1 & 2, 3 & Open Closed 4 Note: Pins designated should be in the closed position. CPU SPEED CONFIGURATION Speed JP6 JP7 JP8 25MHz Open Open Closed 33MHz Closed Closed Closed 40MHz Open Closed Closed 50iMHz Open Open Closed 50MHz Closed Open Open 66iMHz Closed Closed Closed 75iMHz Open Open Closed 100iMHz Closed Closed Closed CPU VOLTAGE CONFIGURATION Voltage JP24 JP25 JP26 3.3v pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 4v pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 5v pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed VESA WAIT STATE CONFIGURATION Wait states JP16 0 wait states Open 1 wait state Closed BUS SPEED CONFIGURATION CPU speed JP17 <= 33MHz Open > 33MHz Closed Note: The location of JP17 is unidentified.