AMERICAN DIGICOM CORPORATION 486E CACHE MAINBOARD Processor 80486SX/80487SX/80486DX/80486DX2 Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set OPTI Max. onboard DRAM 128MB SRAM Cache 64/128/256/512KB BIOS AMI Dimensions 330.2mm x 215.8mm I/O Options None NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Speaker J4 Turbo LED JP17 Power LED & keylock J5 Reset switch S9 Turbo switch JP16 USER CONFIGURABLE SETTINGS Function Jumper Position » I/O bus mode select EISA JP0 Open I/O bus mode select ISA JP0 Closed » Monitor type select color JP4 Closed Monitor type select monochrome JP4 Open » Factory configured - do not alter JP6 Open CPU TYPE CONFIGURATION Jumper 80486SX 80487SX 80486DX/DX2 JP7 pins 2 & 3 pins 1 & 2 and 3 pins 1 & 2 and 3 & 4 closed & 4 closed closed JP9 Open pins 1 & 2 pins 2 & 3 closed closed CPU SPEED CONFIGURATION Speed iOSC JP1 JP2 JP3 JP8 20MHz 40MHz Open Closed pins 2 & pins 2 & 3 3 25MHz 50MHz Open Open pins 1 & pins 2 & 2 3 33MHz 66MHz Closed Open pins 1 & pins 2 & 2 3 40MHz 80MHz Open Closed pins 1 & pins 2 & 2 3 50i MHz 50MHz Open Open pins 1 & pins 2 & 2 3 50MHz 50MHz Closed Closed pins 1 & pins 1 & 2 2 66i MHz 66MHz Closed Open pins 1 & pins 2 & 2 3 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 64MB (4) 16M x 9 NONE 128MB (4) 16M x 9 (4) 16M x 9 SRAM CONFIGURATION Size Bank 0 Bank 1 U49 U50 U51 U64 64KB (4) 8K x (4) 8K (1) 64K (1) 8K NONE (1) 16K 8 x 8 x 1 x 8 x 1 128KB (4) 32K NONE (1) 64K (1) 8K NONE (1) 16K x 8 x 1 x 8 x 1 256KB (4) 32K (4) 32K (1) 64K (1) 8K (1) 8K (1) 16K x 8 x 8 x 1 x 8 x 8 x 1 512KB (4) 128K NONE (1) 64K (1) 32K NONE (1) 64K x 8 x 1 x 8 x 1 SRAM JUMPER CONFIGURATION Jumper 64KB 128KB 256KB 512KB JP5 pins 2 & 3 pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed closed JP10 Open Open Open Closed JP11 Open Open Closed Closed JP12 Open Closed Closed Closed JP13 Open Open Closed Closed JP14 Open Closed Closed Closed JP15 Open Open Open Closed