ABIT COMPUTER CORPORATION PW4/PW4T REV. 1.3 Processor 80486SX/SL80486SX/CX486M7/AM486DX/80486DX/SL80486DX/CX486DX2/ AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4 Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/100(internal)MHz Speed Chip Set Unidentifed Max. 192MB Onboard DRAM Cache 128/256/512/1024KB BIOS Award Dimensions 330mm 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 J1 Power LED & keylock JW1 Green PC connector JP47 Speaker JW2 Green PC connector JP48 Turbo LED JW3 Green PC connector JP49 Turbo switch JW4 Green PC connector JP50 Reset switch JW5 Green PC connector JP51 32-bit VESA local SL1 - SL3 bus slots Green PC connector JP52 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color JP5 Closed Monitor type select monochrome JP5 Open » Factory configured - do not alter JP6 Open » Factory configured - do not alter JP41 Open » CMOS memory normal operation JP67 pins 1 & 2 closed CMOS memory clear JP67 pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 1MB (4) 256K x 9 NONE NONE 1MB NONE (1) 256K x 36 NONE 1MB NONE NONE (1) 256K x 36 2MB (4) 256K x 9 (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 2MB NONE NONE (1) 512K x 36 3MB (4) 256K x 9 (1) 512K x 36 NONE 3MB (4) 256K x 9 (1) 256K x 36 (1) 256K x 36 3MB (4) 256K x 9 (1) 512K x 36 NONE 3MB NONE (1) 256K x 36 (1) 512K x 36 4MB (4) 1M x 9 NONE NONE 4MB NONE (1) 1M x 36 NONE 4MB NONE (1) 512K x 36 (1) 512K x 36 4MB NONE NONE (1) 1M x 36 5MB (4) 256K x 9 (1) 1M x 36 NONE 5MB (4) 1M x 9 (1) 256K x 36 NONE 5MB (4) 1M x 9 (1) 256K x 36 NONE 5MB (4) 256K x 9 (1) 512K x 36 (1) 512K x 36 5MB NONE (1) 256K x 36 (1) 1M x 36 6MB (4) 1M x 9 (1) 512K x 36 NONE 6MB (4) 1M x 9 (1) 256K 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) 512K x 36 NONE 6MB NONE (1) 1M x 36 (1) 512K x 36 8MB (4) 1M x 9 (1) 1M x 36 NONE 8MB (4) 1M x 9 (1) 512K x 36 (1) 512K x 36 8MB NONE (1) 2M x 36 NONE 8MB NONE NONE (1) 2M x 36 9MB (4) 1M x 9 (1) 256K x 36 (1) 1M x 36 9MB (4) 256K x 9 (1) 1M x 36 (1) 1M x 36 9MB (4) 256K x 9 (1) 2M x 36 NONE 11MB (4) 256K x 9 (1) 512K x 36 (1) 2M x 36 12MB (4) 1M x 9 (1) 2M x 36 NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 12MB (4) 1M x 9 (1) 1M x 36 (1) 1M x 36 12MB (4) 1M x 9 (1) 2M x 36 NONE 12MB NONE (1) 1M x 36 (1) 2M 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 16MB NONE NONE (1) 4M x 36 17MB (4) 256K x 9 (1) 4M x 36 NONE 17MB (4) 4M x 9 (1) 256K x 36 NONE 17MB (4) 256K x 9 (1) 2M x 36 (1) 2M x 36 17MB NONE (1) 256K x 36 (1) 4M x 36 18MB (4) 4M x 9 (1) 512K x 36 NONE 18MB (4) 4M x 9 (1) 256K x 36 (1) 256K x 36 18MB (4) 256K x 9 (1) 256K x 36 (1) 4M x 36 18MB (4) 4M x 9 (1) 512K x 36 NONE 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 (4) 1M x 9 (1) 2M x 36 (1) 2M x 36 20MB (4) 4M x 9 (1) 512K x 36 (1) 512K x 36 20MB NONE (1) 1M x 36 (1) 4M x 36 21MB (4) 4M x 9 (1) 256K x 36 (1) 1M x 36 21MB (4) 1M x 9 (1) 256K x 36 (1) 4M x 36 21MB (4) 256K x 9 (1) 1M x 36 (1) 4M x 36 24MB (4) 4M x 9 (1) 2M x 36 NONE 24MB (4) 4M x 9 (1) 1M x 36 (1) 1M x 36 24MB (4) 1M x 9 (1) 1M x 36 (1) 4M x 36 24MB (4) 4M x 9 (1) 2M x 36 NONE 24MB NONE (1) 4M x 36 (1) 2M x 36 32MB (4) 4M x 9 (1) 4M x 36 NONE 32MB (4) 4M x 9 (1) 2M x 36 (1) 2M x 36 32MB NONE (1) 4M x 36 (1) 4M x 36 32MB NONE (1) 8M x 36 NONE 32MB NONE NONE (1) 8M x 36 33MB (4) 256K x 9 (1) 8M x 36 NONE 33MB (4) 4M x 9 (1) 256K x 36 (1) 4M x 36 33MB (4) 256K x 9 (1) 4M x 36 (1) 4M x 36 33MB (4) 256K x 9 (1) 8M x 36 NONE 33MB NONE (1) 256K x 36 (1) 8M x 36 34MB NONE (1) 512K x 36 (1) 8M x 36 35MB (4) 256K x 9 (1) 512K x 36 (1) 8M x 36 36MB (4) 1M x 9 (1) 8M x 36 NONE 36MB (4) 4M x 9 (1) 1M x 36 (1) 4M x 36 36MB (4) 1M x 9 (1) 4M x 36 (1) 4M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 36MB (4) 1M x 9 (1) 8M x 36 NONE 36MB NONE (1) 1M x 36 (1) 8M x 36 38MB (4) 1M x 9 (1) 512K x 36 (1) 8M x 36 40MB NONE (1) 2M x 36 (1) 8M x 36 41MB (4) 256K x 9 (1) 2M x 36 (1) 8M x 36 44MB (4) 1M x 9 (1) 2M x 36 (1) 8M x 36 48MB (4) 4M x 9 (1) 8M x 36 NONE 48MB (4) 4M x 9 (1) 4M x 36 (1) 4M x 36 48MB NONE (1) 4M x 36 (1) 8M x 36 56MB (4) 4M x 9 (1) 2M 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 64MB NONE NONE (1) 16M x 36 65MB (4) 256K x 9 (1) 16M x 36 NONE 65MB (4) 16M x 9 (1) 256K x 36 NONE 65MB (4) 16M x 9 (1) 256K x 36 NONE 65MB (4) 256K x 9 (1) 8M x 36 (1) 8M x 36 65MB NONE (1) 256K x 36 (1) 16M x 36 66MB (4) 16M x 9 (1) 512K x 36 NONE 66MB (4) 16M x 9 (1) 256K x 36 (1) 256K x 36 66MB (4) 256K x 9 (1) 256K x 36 (1) 16M x 36 66MB (4) 16M x 9 (1) 512K x 36 NONE 66MB NONE (1) 16M x 36 (1) 512K x 36 68MB (4) 1M x 9 (1) 16M x 36 NONE 68MB (4) 16M x 9 (1) 1M x 36 NONE 68MB (4) 1M x 9 (1) 8M x 36 (1) 8M x 36 68MB (4) 16M x 9 (1) 512K x 36 (1) 512K x 36 68MB NONE (1) 1M x 36 (1) 16M x 36 69MB (4) 16M x 9 (1) 256K x 36 (1) 1M x 36 69MB (4) 1M x 9 (1) 256K x 36 (1) 16M x 36 69MB (4) 256K x 9 (1) 1M x 36 (1) 16M x 36 72MB (4) 16M x 9 (1) 2M x 36 NONE 72MB (4) 16M x 9 (1) 1M x 36 (1) 1M x 36 72MB (4) 1M x 9 (1) 1M x 36 (1) 16M x 36 72MB (4) 16M x 9 (1) 2M x 36 NONE 72MB NONE (1) 16M x 36 (1) 2M x 36 74MB (4) 16M x 9 (1) 512K x 36 (1) 2M x 36 80MB (4) 4M x 9 (1) 16M x 36 NONE 80MB (4) 16M x 9 (1) 4M x 36 NONE 80MB (4) 16M x 9 (1) 2M x 36 (1) 2M x 36 81MB (4) 16M x 9 (1) 256K x 36 (1) 4M x 36 81MB (4) 4M x 9 (1) 256K x 36 (1) 16M x 36 81MB (4) 256K x 9 (1) 4M x 36 (1) 16M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 84MB (4) 16M x 9 (1) 1M x 36 (1) 4M x 36 84MB (4) 4M x 9 (1) 1M x 36 (1) 16M x 36 84MB (4) 1M x 9 (1) 4M x 36 (1) 16M x 36 96MB (4) 16M x 9 (1) 8M x 36 NONE 96MB (4) 4M x 9 (1) 4M x 36 (1) 16M x 36 96MB NONE (1) 16M x 36 (1) 8M x 36 128MB (4) 16M x 9 (1) 16M x 36 NONE 128MB (4) 16M x 9 (1) 8M x 36 (1) 8M x 36 128MB NONE (1) 16M x 36 (1) 16M x 36 129MB (4) 16M x 9 (1) 256K x 36 (1) 16M x 36 129MB (4) 256K x 9 (1) 16M x 36 (1) 16M x 36 132MB (4) 16M x 9 (1) 1M x 36 (1) 16M x 36 132MB (4) 1M x 9 (1) 16M x 36 (1) 16M x 36 144MB (4) 16M x 9 (1) 4M x 36 (1) 16M x 36 144MB (4) 4M x 9 (1) 16M x 36 (1) 16M x 36 192MB (4) 16M x 9 (1) 16M x 36 (1) 16M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 256KB (4) 64K x 8 NONE (1) 64K x 8 512KB (4) 64K x 8 (4) 64K x 8 (1) 64K x 8 512KB (4) 128K x 8 NONE (1) 128K x 8 1MB (4) 128K x 8 (4) 128K x 8 (1) 128K x 8 CACHE JUMPER CONFIGURATION Size JP60 JP61 JP62 JPX3 128KB pins 2 & 3 closed pins 1 & 2 closed pins 2 & 3 closed pins 9 - 16 closed 256KB pins 2 & 3 closed pins 1 & 2 closed pins 2 & 3 closed pins 13 - 20 closed 256KB pins 2 & 3 closed pins 2 & 3 closed pins 2 & 3 closed pins 3 - 10 closed 512KB pins 2 & 3 closed pins 1 & 2 closed pins 2 & 3 closed pins 1 - 8 closed 512KB pins 2 & 3 closed pins 1 & 2 closed pins 2 & 3 closed pins 3 - 10 closed 1MB pins 1 & 2 closed pins 1 & 2 closed pins 1 & 2 closed pins 1 - 8 closed CPU TYPE CONFIGURATION Type JP15 JP16 JP17 JP37 80486SX Open pins 2 & 3 pins 2 & 3 Open closed closed SL80486SX Open pins 2 & 3 pins 2 & 3 Open closed closed CX486M7 Open pins 1 & 2 pins 1 & 2 Open closed closed AM486DX Open pins 2 & 3 pins 2 & 3 Open closed closed 80486DX Open pins 2 & 3 pins 2 & 3 Open closed closed SL80486DX Open pins 2 & 3 pins 2 & 3 Open closed closed CX486DX2-50 Open pins 2 & 3 pins 2 & 3 1 & 2 closed closed CX486DX2-66 Open pins 1 & 2 pins 1 & 2 Open closed closed CX486DX2-80 Open pins 1 & 2 pins 1 & 2 Open closed closed AM486DX2 (3.45v) pins 2 & 3 pins 2 & 3 pins 2 & 3 Open closed closed closed AM486DX2 Open pins 2 & 3 pins 2 & 3 Open closed closed 80486DX2 Open pins 2 & 3 pins 2 & 3 Open closed closed SL80486DX2 Open pins 2 & 3 pins 2 & 3 Open closed closed AM486DX4 Open pins 1 & 2 pins 1 & 2 Open closed closed 80486DX4-75 Open pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed 80486DX4-100 Open pins 2 & 3 pins 2 & 3 Open closed closed Note: DX4 CPU is only available on the PW4T mainboard. CPU TYPE CONFIGURATION Type JP38 JP39 JP40 RN8 80486SX Open Open Open Installed SL80486SX Open Open Open Installed CX486M7 Open Open Open Installed AM486DX Open Open Open Installed 80486DX Open Open Open Installed SL80486DX Open Open Open Installed CX486DX2-50 Open Open Open Not installed CX486DX2-66 Open 1 & 2 Open Not installed CX486DX2-80 Open Open 1 & 2 Not installed AM486DX2 (3.45v) 1 & 2 Open Open Not installed AM486DX2 Open Open Open Installed 80486DX2 Open Open Open Installed SL80486DX2 Open Open Open Installed AM486DX4 1 & 2 Open 1 & 2 Not installed 80486DX4-75 Open Open Open Not installed 80486DX4-100 1 & 2 Open 1 & 2 Not installed Note: Pins designated should be in the closed position. DX4 CPU is only available on the PW4T mainboard. CPU TYPE CONFIGURATION Type RN5 RN6 RN7 JP20 JP26 80486SX Not Installed Not Closed 1 & 2 installed installed SL80486SX Not Installed Not Closed 1 & 2 installed installed CX486M7 Installed Not Installed Open 1 & 2 installed AM486DX Not Installed Installed Open 1 & 2 installed 80486DX Not Installed Installed Open 1 & 2 installed SL80486DX Not Installed Installed Open 1 & 2 installed AM486DX2 Not Installed Installed Open 1 & 2 installed 80486DX2 Not Installed Installed Open 1 & 2 installed SL80486DX2 Not Installed Installed Open 1 & 2 installed AM486DX4 Not Installed Installed Open Open installed 80486DX4 Not Installed Installed Open Open installed Note: Pins designated should be in the closed position. DX4 CPU is only available on the PW4T mainboard. CPU TYPE CONFIGURATION (CON’T) Type JP42 JP65 JPX1 JPX2 80486SX Open Open pins 5 - 12 closed Open SL80486SX Closed Open pins 5 - 12 closed Open CX486M7 Closed Closed pins 1 - 8 closed pins 1 - 8 closed AM486DX Open Closed pins 5 - 12 closed Open 80486DX Open Closed pins 5 - 12 closed Open SL80486DX Closed Closed pins 5 - 12 closed Open AM486DX2 Open Closed pins 5 - 12 closed Open 80486DX2 Open Closed pins 5 - 12 closed Open SL80486DX2 Closed Closed pins 5 - 12 closed Open AM486DX4 Closed Closed pins 5 - 12 closed Open 80486DX4 Closed Closed pins 5 - 12 closed Open Note: DX4 CPU is only available on the PW4T mainboard. CPU SPEED CONFIGURATION(U30 CLOCK GENERATOR) Speed JP27 JP28 JP29 20MHz Open Open Closed 25MHz Closed Open Closed 33MHz Open Closed Closed 40MHz Closed Open Open 50iMHz Closed Open Closed 66iMHz Open Closed Closed 75iMHz Closed Open Closed 80iMHz Closed Open Open 100iMHz Open Closed Closed CPU SPEED CONFIGURATION(U31 CLOCK GENERATOR) Speed JP27 JP28 JP29 20MHz Open Open Open 25MHz Open Open Closed 33MHz Closed Closed Closed 40MHz Open Closed Closed 50iMHz Open Open Closed 66iMHz Closed Closed Closed 75iMHz Open Open Closed 80iMHz Open Closed Closed 100iMHz Closed Closed Closed VESA WAIT STATE CONFIGURATION Wait states JP9 0 wait states Open 1 wait state Closed BUS SPEED CONFIGURATION CPU speed JP10 <= 33MHz Open > 33MHz Closed