AMPTRON INTERNATIONAL, INC. DX-6900 VER. 1.75 Processor AM486SX/80486SX/CX486DX/AM486DX/IBM486DX/TI486DX/80486DX/ SL80486DX/CX486DX2/AM486DX2/IBM486DX2/TI486DX2/80486DX2/ SL80486DX2/CX486DX4/AM486DX4/IBM486DX4/80486DX4/AM5X86 Processor 25/33/40/50(internal)/50/66(internal)/80(internal)/100(internal)/120(internal)/133(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 Pins 2 & 3 closed Battery type select external JP1 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 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) 512K x 36 None 2MB None (1) 256K x 36 (1) 256K x 36 3MB (4) 256K x 9 (1) 256K x 36 (1) 256K x 36 3MB None (1) 512K x 36 (1) 256K x 36 3MB None (1) 256K x 36 (1) 512K 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) 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 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 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 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) 4M x 36 None 16MB None (1) 2M x 36 (1) 2M x 36 17MB (1) 4M x 36 (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 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 18MB (4) 4M x 9 (1) 256K 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 None (1) 1M x 36 (1) 4M x 36 20MB None (1) 4M x 36 (1) 1M x 36 21MB (4) 1M x 9 (1) 256K x 36 (1) 4M x 36 21MB (4) 4M x 9 (1) 256K x 36 (1) 1M x 36 24MB None (1) 4M x 36 (1) 2M x 36 24MB None (1) 2M x 36 (1) 4M x 36 32MB None (1) 8M x 36 None 32MB None (1) 4M x 36 (1) 4M x 36 33MB (4) 4M x 9 (1) 256K 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 None (1) 1M x 36 (1) 8M x 36 36MB None (1) 8M x 36 (1) 1M x 36 40MB None (1) 8M x 36 (1) 2M x 36 40MB None (1) 2M x 36 (1) 8M x 36 48MB None (1) 8M x 36 (1) 4M x 36 48MB None (1) 4M x 36 (1) 8M x 36 64MB (4) 16M x 9 None None 64MB None (1) 16M x 36 None 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 (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 JP5 JP10 JP11 JP12 JP13 JP14 64KB 2 & 3 2 & 3 Open Open Open Open 128KB 1 & 2 1 & 2 Open Open Open Closed 256KB 2 & 3 2 & 3 Open Open Closed Closed (A) 256KB 1 & 2, 1 & 2 Open Open Closed Closed (B) 3 & 4 512KB 2 & 3, 2 & 3 Open Closed Closed Closed (A) 4 & 5 512KB 1 & 2, 1 & 2 Open Closed Closed Closed (B) 3 & 4, 5 & 6 1MB 2 & 3, 2 & 3 Closed Closed Closed Closed 4 & 5, 6 & 7 Note: Pins designated should be in the closed position. 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 IBM486DX 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 TI486DX 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 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 CX486DX2-V80 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 AM486DX2 Open 2 & 3 Open Open AM486DX2(3.3v) Open 2 & 3 Open Open IBM486DX2 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 TI486DX2 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 80486DX2 Open 2 & 3 Open Open SL80486DX2 1 & 2, 3 & 1 & 2 1 & 2 5 & 6 4 CX486DX4-GP 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 CX486DX4-GP4 1 & 2, 3 & 1 & 2, 4 & 1 & 2, 4 & 3 & 4, 5 & 4 5 5 6 AM486DX4 (3.3v) Open 2 & 3 Open Open AM486DX4 (8B) 1 & 2, 3 & 1 & 2, 4 & 1 & 2, 4 & 3 & 4, 5 & 4 5 5 6 IBM486DX4-GC 2 & 3 1 & 2, 3 & 1 & 2, 3 & 2 & 3, 4 & 4, 5 & 6 4, 5 & 6 5 IBM486DX4-GIC 1 & 2, 3 & 1 & 2, 4 & 1 & 2, 4 & 3 & 4, 5 & 4 5 5 6 80486DX4 1 & 2, 3 & 1 & 2 1 & 2 5 & 6 4 AM5X86-133 1 & 2, 3 & 1 & 2, 4 & 1 & 2, 4 & 3 & 4, 5 & 4 5 5 6 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP31 JP32 JP33 JP34 JP35 AM486SX Open Open 2 & 3 Closed Closed 80486SX Open Open 2 & 3 Closed Closed CX486DX Open 1 & 2 1 & 2, Open Closed 3 & 4 AM486DX Open 1 & 2 1 & 2, Closed Closed 3 & 4 IBM486DX Open 1 & 2 1 & 2, Open Closed 3 & 4 TI486DX Open 1 & 2 1 & 2, Open Closed 3 & 4 80486DX Open 1 & 2 1 & 2, Closed Closed 3 & 4 SL80486DX Open 1 & 2 1 & 2, Open Closed 3 & 4 CX486DX2 Open 1 & 2 1 & 2, Open Closed 3 & 4 CX486DX2-V80 Open 1 & 2 1 & 2, Open Open 3 & 4 AM486DX2 Open 1 & 2 1 & 2, Closed Closed 3 & 4 AM486DX2(3.3v) Open 1 & 2 1 & 2, Closed Closed 3 & 4 IBM486DX2 Open 1 & 2 1 & 2, Open Closed 3 & 4 TI486DX2 Open 1 & 2 1 & 2, Open Closed 3 & 4 80486DX2 Open 1 & 2 1 & 2, Closed Closed 3 & 4 SL80486DX2 Open 1 & 2 1 & 2, Open Closed 3 & 4 CX486DX4-GP Open 1 & 2 1 & 2, Open Closed 3 & 4 CX486DX4-GP4 Open 1 & 2 1 & 2, Open Closed 3 & 4 AM486DX4 (3.3v) Open 1 & 2 1 & 2, Open Closed 3 & 4 AM486DX4 (8B) Open 1 & 2 1 & 2, Open Closed 3 & 4 IBM486DX4-GC Open 1 & 2 1 & 2, Open Closed 3 & 4 IBM486DX4-GIC Open 1 & 2 1 & 2, Open Closed 3 & 4 80486DX4 Open 1 & 2 1 & 2, Open Closed 3 & 4 AM5X86-133 2 & 3 1 & 2 1 & 2, Open Closed 3 & 4 Note: Pins designated should be in the closed position. 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 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 80iMHz Open Closed Closed 100iMHz Closed Closed Closed 120iMHz Open Closed Closed 133iMHz Closed Closed Closed VL BUS WAIT STATE CONFIGURATION Wait states JP17 0 wait states Open 1 wait state Closed Note: The location of JP17 is unidentified. VL BUS SPEED CONFIGURATION CPU speed JP16 <= 33MHz Open > 33MHz Closed