UNIDENTIFIED 391WB/H Processor 80386DX/AMD80386DX Processor Speed 33/40MHz Chip Set OPTI Max. Onboard DRAM 32MB Cache 32/64/128/256KB BIOS AMI Dimensions 220mm x 220mm I/O Options None NPU Options 80387DX/3167 [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock J1 Reset switch J4 Speaker J2 Turbo switch J5 Turbo LED J3 External battery JP13 USER CONFIGURABLE SETTINGS Function Jumper Position » Turbo mode disabled J5 Closed Turbo mode enabled J5 Open » NPU asynchronous with CPU JP8 Closed NPU synchronous with CPU JP8 Open » I/O bus speed select ATCLK/6 JP9 Open I/O bus speed select ATCLK/8 JP9 Closed » Monitor type select monochrome JP12 Open Monitor type select color JP12 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) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 20MB (4) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 32KB (4) 8K x 8 NONE (1) 8K x 8 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 JP1 JP2 JP3 JP4 JP5 JP6 JP14 JP15 JP16 JP17 32KB 1 & 1 & 1 & Open Open Open 2 & 1 & 1 & 1 & 2 2 2 3 2 2 2 64KB 1 & 1 & 2 & Open Open Closed 2 & 1 & 1 & 1 & 2 2 3 3 2 2 2 128KB 2 & 1 & 2 & Closed Open Closed 2 & 1 & 1 & 1 & 3 2 3 3 2 2 2 256KB 2 & 2 & 2 & Closed Closed Closed 2 & 1 & 1 & 1 & 3 3 3 3 2 2 2 Note: Pins designated should be in the closed position.