MICROMEDIA TECHNOLOGIES, INC. 486-S Processor 80486SX/80486DX/80486DX2 Processor Speed 20/25/33/50(internal)MHz Chip Set SIS Max. Onboard DRAM 32MB Cache 32/64/128/256KB BIOS AMI Dimensions 230mm x 218mm I/O Options None NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock CN1 Turbo LED CN4 Speaker CN2 Reset switch CN5 Turbo switch CN3 External battery CN6 USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation JP10 pins 1 & 2 closed CMOS memory clear JP10 pins 2 & 3 closed » Monitor type select color JP13 Closed Monitor type select monochrome JP13 Open » Power good signal detect from JP17 pins 1 & 2 board closed Power good signal detect from JP17 pins 2 & 3 power supply 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 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 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) 32K 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 JP7 JP8 JP9 32KB 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 2 2 2 2 2 2 2 2 2 64KB 1 & 1 & 2 & 2 & 1 & 1 & 1 & 2 & 2 & 3 2 2 3 3 2 2 2 3 128KB 2 & 1 & 2 & 2 & 2 & 1 & 2 & 1 & 1 & 2 3 2 3 3 3 2 3 2 256KB 2 & 2 & 2 & 2 & 2 & 2 & 2 & 2 & 2 & 3 3 3 3 3 3 3 3 3 Note:Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP14 JP15 JP16 80486SX Open pins 2 & 3 pins 2 & 3 closed closed 80487SX Closed pins 1 & 2 pins 2 & 3 closed closed 80486DX Closed pins 1 & 2 pins 1 & 2 closed closed