AMPTRON INTERNATIONAL, INC. DX-6600 Processor 80486SX/AM486SX/Cx486S/80487SX/AM486DX 80486DX/Cx486DX/AM486DX2/80486DX2 Processor Speed 25/33/40/50(internal/50/66(internal)MHz Chip Set SARC Max. Onboard DRAM64MB Cache 64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (3) NPU Options 80387DX [Image] CONNECTIONS Purpose Location Purpose Location Power LED & JP10 Reset switch JP13 keylock Speaker JP11 Turbo switch JP14 Turbo LED JP12 32-bit VESA SL1, SL2,& SL3 local bus slots USER CONFIGURABLE SETTINGS Function Jumper Position CPU clock rate < 33 MHz JP15 Open CPU clock rate > 33 MHz JP15 pins 1 & 2 closed » CMOS memory normal operation(External JP1 Open Battery) CMOS memory normal JP1 pins 2 & 3 operation(Rechargeable Battery) closed CMOS memory clear JP1 pins 3 & 4 closed DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 5MB (4) 1M x 9 (4) 256K x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 64MB (4) 16M x 9 NONE 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 CACHE JUMPER CONFIGURATION Size JP2 JP4 JP5 JP6 64KB Open Open pins 1 & 2 Open closed 128KB Open Closed pins 2 & 3 pins 2 & 3 closed closed 256KB Closed Closed pins 1 & 2 pins 1 & 2 closed closed CPU TYPE CONFIGURATION CPU Type JP16 JP17 80486SX pins 2 & 3 closed Open Cx486S pins 1 & 2, 3 & 4 pins 1 & 2 closed closed 80487SX pins 1 & 2, 3 & 4 pins 2 & 3 closed closed 80486DX pins 1 & 2, 3 & 4 pins 1 & 2 closed closed Cx486DX pins 1 & 2, 3 & 4 pins 1 & 2 closed closed 80486DX2 pins 1 & 2, 3 & 4 pins 1 & 2 closed closed CPU SPEED CONFIGURATION CPU speed JP7 JP8 JP18 25MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 closed closed closed 33MHz pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed 40MHz pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed 50MHz pins 2 & 3 pins 1 & 2 pins 2 & 3 closed closed closed 50iMHz pins 2 & 3 pins 1 & 2 pins 1 & 2 closed closed closed 66iMHz pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed CPU SPEED CONFIGURATION (AMD486 CPU ONLY) Adaptor Board System Board CPU speed JP1 JP2 JP18 25MHz pins 1 & 2 pins 1 & 2, 3 & pins 2 & 3 4 33MHz pins 2 & 3 pins 1 & 2, 3 & pins 2 & 3 4 Cx 40MHz pins 2 & 3 pins 3 & 4 pins 1 & 2 40MHz pins 1 & 2 pins 2 & 3 pins 1 & 2 50MHz pins 1 & 2 pins 3 & 4 pins 2 & 3 50iMHz pins 1 & 2 pins 1 & 2, 3 & pins 2 & 3 4 66iMHz pins 2 & 3 pins 1 & 2, 3 & pins 2 & 3 4 Note:Pins designated are in the closed position. When this system board is installed with a AMD486 CPU, a DX-6600 clock generator adaptor board is required. A system board that has this adaptor board installed must follow the above configuration table. System boards without this adapter board are to be configured according to the user manual. To install the DX-6600 clock generator adaptor board, remove the original clock chip from location "Y1" (between the 387DX socket and the inner most VL-bus slot). Remove the jumper caps from JP7 and JP8. Use a wire cutter to cut all the pins from JP7. Orient the cut-off at the socket under the adapter with the cut-off at the socket on the system board location "Y1" in such a way that the jumper JP1 & JP2 on the adapter board are on top of the original jumper JP7 on the system board. Insert the adapter board firmly into the 8-pin system board socket and follow the jumper settings above to configure your system. If you have any problems installing the DX-6600 or configuring your system, please contact the manufacturer for assisstance.