MICROWAY, INC. 486 US Processor 80486SX/80487SX/80486DX Processor Speed 20/25/33/50MHz Chip Set UMC Max. Onboard DRAM 32MB Cache 64/128/256KB BIOS AMI/Phoenix Dimensions 330mm x 218mm I/O Options 32-bit external memory card slot NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 Turbo switch J6 Power LED & keylock J3 Turbo LED J7 Speaker J4 32-bit external S1 memory card Reset switch J5 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color JP10 Open Monitor type select monochrome JP10 Closed » Bus speed select fast JP12 pins 1 & 2 closed Bus speed select slow JP12 pins 2 & 3 closed » CMOS memory normal operation JP19 Open CMOS memory clear JP19 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (4) 256K x 9 NONE NONE NONE 2MB (4) 256K x 9 (4) 256K x 9 NONE NONE 3MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 NONE 4MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE NONE NONE 5MB (4) 256K x 9 (4) 1M x 9 NONE NONE 6MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 NONE 7MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 NONE NONE 9MB (4) 256K x 9 (4) 1M x 9 (4) 1M x 9 NONE 10MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 (4) 1M x 9 12MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 NONE 16MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE NONE NONE 17MB (4) 256K x 9 (4) 4M x 9 NONE NONE 18MB (4) 256K x 9 (4) 256K x 9 (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 NONE NONE 24MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 NONE 28MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 NONE NONE 36MB (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 NONE 40MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 48MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 NONE 52MB (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 64MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 Note:Banks 2 & 3 are used when a 32-bit external memory card is installed at S1. CACHE CONFIGURATION Size Bank 0 Bank 1 64KB (4) 8K x 8 (4) 8K x 8 128KB (4) 32K x 8 NONE 256KB (4) 32K x 8 (4) 32K x 8 CACHE CONFIGURATION Size JP13 JP14 JP16 JP17 JP18 64KB 1 & 2 1 & 2 2 & 3 1 & 2 1 & 2 128KB 2 & 3 1 & 2 2 & 3 2 & 3 1 & 2 256KB 1 & 2 2 & 3 2 & 3 2 & 3 2 & 3 Note:Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP1 JP2 JP3 JP8 80486SX Open pins 2 & 3 pins 3 & 4 Closed closed closed 80487SX Closed pins 1 & 2 pins 2 & 3 Closed closed closed 80486DX Closed pins 1 & 2 pins 1 & 2 Open closed closed