JOINDATA SYSTEMS, INC. G486PE Processor 80486SX/80486DX/80486DX2 Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set OPTI Max. Onboard DRAM 32MB Cache 64/128/256/512KB BIOS AMI Dimensions 330mm x 218mm I/O Options None NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Speaker J4 Reset switch J9 Power LED & keylock J5 USER CONFIGURABLE SETTINGS Function Jumper Position » I/O bus speed select normal JP1 Open I/O bus speed select slow JP1 Closed » Monitor type select monochrome JP5 Open Monitor type select color JP5 Closed » Burst mode enabled JP7 Closed Burst mode disabled JP7 Open DRAM CONFIGURATION Size Bank 0 Bank 1 4MB (4) 1M x 9 NONE 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG (U52) TAG (U52) Dirty Bit(U66) 64KB 4) 8K x 4) 8K x (1) 8K x N/A (1) 16K x 1 8 8 8 128KB (4) 32K NONE (1) 8K x N/A (1) 16K x 1 x 8 8 256KB (4) 32K (4) 32K (1) 8K x (1) 8K x (1) 16K x 1 x 8 x 8 8 8 512KB (4) 128K NONE (1) 32K x N/A (1) 64K x 1 x 8 8 Note:You may use a (1) 64K x 1 at U66 for all Cache SRAM sizes . CACHE JUMPER CONFIGURATION Size JP6 JP11 JP12 JP13 JP14 JP15 JP16 64KB 2 & Open Open Open Open Open Open 3 128KB 1 & Open Open Closed Open Closed Open 2 256KB 2 & Open Closed Closed Closed Closed Open 3 512KB 1 & Closed Closed Closed Closed Closed Closed 2 Note:Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type OSC1 JP2 JP3 JP8 JP9 JP10 80486DX2- 50 50MHz Closed Closed 1 & 2, 2 & 3 1 & 2 MHz 3 & 4 80486DX2- 50 25MHz Closed Closed 1 & 2, 1 & 2 1 & 2 MHz 3 & 4 80486DX- 50 50MHz Closed Closed 1 & 2, 1 & 2 1 & 2 MHz 3 & 4 80486DX- 33 66MHz Closed Open 1 & 2, 2 & 3 1 & 2 MHz 3 & 4 80486DX- 33 33MHz Closed Open 1 & 2, 1 & 2 1 & 2 MHz 3 & 4 80486DX- 25 50MHz Open Open 1 & 2, 2 & 3 1 & 2 MHz 3 & 4 80486DX- 25 25MHz Open Open 1 & 2, 1 & 2 1 & 2 MHz 3 & 4 80486SX- 25 50MHz Open Open 2 & 3 2 & 3 Open MHz 80486SX- 25 25MHz Open Open 2 & 3 1 & 2 Open MHz 80486SX- 20 40MHz Open Open 2 & 3 2 & 3 Open MHz 80486SX- 20 20MHz Open Open 2 & 3 1 & 2 Open MHz Note:Pins designated should be in the closed position.