BEK-TRONIC TECHNOLOGY, INC. BEK-P402 Processor CX486S/80486SX/CX486DX/SL80486DX/LSE80486DX/80486DX/SL80486DX2/80486DX2/80486DX4/P24D/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set OPTI Max. 128MB Onboard DRAM Cache 64/128/256KB BIOS Award Dimensions 255mm x 220mm I/O 32-bit VESA local bus slots (3), 32-bit PCI slots (3), green PC connector Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery J2 Turbo LED JP27 Power LED & keylock J16 Turbo switch JP28 Green PC connector JP3 Reset switch S1 (monitor) Speaker JP25 32-bit PCI slots PC1 - PC3 Green PC connector JP26 32-bit VESA local SL1 - SL3 bus slots USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not alter JP1 N/A » CMOS memory normal operation JP2 pins 2 & 3 closed CMOS memory clear JP2 pins 1 & 2 closed » PCI clock type select synchronous JP4 pins 2 & 3 closed PCI clock type select JP4 pins 1 & 2 asynchronous closed » Factory configured - do not alter JP9 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 2MB (4) 256K x 9 (1) 256K x 36 NONE 2MB (4) 256K x 9 NONE (1) 256K x 36 2MB NONE (1) 256K x 36 (1) 256K x 36 4MB (4) 1M x 9 NONE NONE 4MB NONE (1) 1M x 36 NONE 5MB (4) 256K x 9 (1) 1M x 36 NONE 5MB (4) 256K x 9 NONE (1) 1M x 36 8MB (4) 1M x 9 (1) 1M x 36 NONE 8MB (4) 1M x 9 NONE (1) 1M x 36 8MB NONE (1) 1M x 36 (1) 1M x 36 16MB (4) 4M x 9 NONE NONE 16MB NONE (1) 4M x 36 NONE 17MB (4) 256K x 9 (1) 4M x 36 NONE 17MB (4) 256K x 9 NONE (1) 4M x 36 20MB (4) 1M x 9 (1) 4M x 36 NONE 20MB (4) 1M x 9 NONE (1) 4M x 36 32MB (4) 4M x 9 (1) 4M x 36 NONE 32MB (4) 4M x 9 NONE (1) 4M x 36 32MB NONE (1) 4M x 36 (1) 4M x 36 64MB (4) 16M x 9 NONE NONE 64MB NONE (1) 16M x 36 NONE 128MB (4) 16M x 9 (1) 16M x 36 NONE 128MB (4) 16M x 9 NONE (1) 16M x 36 DRAM JUMPER CONFIGURATION Size JP45 1MB pins 1 & 2 closed 1MB pins 1 & 2 closed 2MB pins 2 & 3 closed 2MB pins 1 & 2 closed 2MB pins 1 & 2 closed 4MB pins 1 & 2 closed 4MB pins 1 & 2 closed DRAM JUMPER CONFIGURATION (CON’T) Size JP45 5MB pins 2 & 3 closed 5MB pins 1 & 2 closed 8MB pins 2 & 3 closed 8MB pins 1 & 2 closed 8MB pins 1 & 2 closed 16MB pins 1 & 2 closed 16MB pins 1 & 2 closed 17MB pins 2 & 3 closed 17MB pins 1 & 2 closed 20MB pins 2 & 3 closed 20MB pins 1 & 2 closed 32MB pins 2 & 3 closed 32MB pins 1 & 2 closed 32MB pins 1 & 2 closed 64MB pins 1 & 2 closed 64MB pins 1 & 2 closed 128MB pins 2 & 3 closed 128MB pins 1 & 2 closed 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) 16K x 8 or (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP20 JP22 JP24 64KB pins 2 & 3 Open Open closed 128KB pins 1 & 2 Closed Open closed 256KB pins 2 & 3 Closed Closed closed CACHE TAG JUMPER CONFIGURATION Size JP23 8K x 8 pins 1 & 2 closed 16K x 8 pins 2 & 3 closed 32K x 8 pins 1 & 2 closed CPU TYPE CONFIGURATION Type JP6 JP7 JP8 JP10 JP11 CX486S Open Open Open 1 & 2 Open 8048SX Open Open Open Open Open CX486DX 1 & 2 1 & 2 Open Open Open SL80486DX Open 1 & 2 Open Open Open LSE80486DX Open Open Open Open Open 80486DX Open 1 & 2 Open Open Open SL80486DX2 Open 1 & 2 Open Open Open 80486DX2 Open 1 & 2 Open Open Open 80486DX4 Open 1 & 2 Open Open Open P24D Open 1 & 2 Closed Open Closed P24T Open 1 & 2 Open 2 & 3 Open Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP12 JP13 JP14 JP15 JP16 CX486S Open Open 1 & 2 2 & 3 1 & 2, 4 & 5 8048SX Open Open 1 & 2 2 & 3 1 & 2, 4 & 5 CX486DX Open Open 1 & 2 1 & 2, 3 1 & 2, 4 & 4 & 5 SL80486DX Open Closed 1 & 2 1 & 2, 3 1 & 2, 4 & 4 & 5 LSE80486DX Open Closed 1 & 2 2 & 3 1 & 2, 4 & 5 80486DX Open Open 1 & 2 1 & 2, 3 1 & 2, 4 & 4 & 5 SL80486DX2 Open Closed 1 & 2 1 & 2, 3 1 & 2, 4 & 4 & 5 80486DX2 Open Open 1 & 2 1 & 2, 3 1 & 2, 4 & 4 & 5 80486DX4 Open Closed 1 & 2 1 & 2, 3 1 & 2, 4 & 4 & 5 P24D Open Closed 1 & 2 1 & 2, 3 1 & 2, 4 & 4 & 5 P24T Open Closed 2 & 3 1 & 2, 3 1 & 2, 4 & 4 & 5 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP17 JP21 JP36 JP37 JP38 CX486S Open Open Open Closed Open 8048SX Open Open Open Open Open CX486DX Open Open Open Closed Open SL80486DX Closed Closed Closed Open Open LSE80486DX Closed Closed Closed Open Open 80486DX Open Open Open Open Open SL80486DX2 Closed Closed Closed Open Open 80486DX2 Open Open Open Open Open 80486DX4 Closed Closed Closed Open Open P24D Closed Closed Closed Open Open P24T Closed Closed Closed Open Open CPU SPEED CONFIGURATION Speed JP30 JP31 25MHz Open Open 33MHz Closed Closed 40MHz Open Closed 50iMHz Open Open 50MHz Closed Open 66iMHz Closed Closed 75iMHz Open Open 100iMHz Closed Closed PCI SPEED CONFIGURATION Speed JP46 JP47 JP48 25MHz Closed Open Open 33MHz Closed Closed Closed