UNIDENTIFIED ISA-S486 Processor 80486SX/80486DX Processor Speed 16/20/25/33/50MHz Chip Set OPTI Max. Onboard DRAM 32MB Cache 64/128/256/1024KB BIOS AMI Dimensions 330mm x 218mm I/O Options None NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock JP5 Speaker JP16 Turbo switch JP10 External battery JP17 Turbo LED JP11 Reset switch JP19 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color JP6 Closed Monitor type select monochrome JP6 Open 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 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 17MB (4) 4M x 9 (4) 256K x 9 17MB (4) 256K x 9 (4) 4M x 9 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 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 1MB (4) 128K x 8 (4) 128K x 8 (1) 128K x 8 CACHE JUMPER CONFIGURATION Size JP22 JP23 JP24 JP25 JP34 64KB 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 128KB 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 256KB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 1MB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 Note: Pins designated should be in the closed position. CACHE JUMPER CONFIGURATION Size JP100 JP101 64KB 2 & 4, 6 & 8, 10 & 12, 2 & 4, 6 & 8, 10 & 12, 14 & 16 14 & 16 128KB 1 & 3, 5 & 7, 9 & 11, 1 & 3, 5 & 7, 9 & 11, 13 & 15 13 & 15 256KB 2 & 4, 6 & 8, 10 & 12, 2 & 4, 6 & 8, 10 & 12, 14 & 16 14 & 16 1MB 2 & 4, 6 & 8, 10 & 12, 2 & 4, 6 & 8, 10 & 12, 14 & 16 14 & 16 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION CPU Type JP12 JP13 JP14 80486SX Open pins 2 & 3 Open closed 80486DX Closed pins 1 & 2 Closed closed