MAGUS DATA TECHNOLOGY, INC. S486 Processor 80486SX/80486DX/80486DX2 Processor Speed 20/25/33/50(internal)/66(internal)MHz Chip Set Headland Max. Onboard DRAM 128MB Cache None BIOS Phoenix Dimensions 330mm x 218mm I/O Options None NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Turbo switch J1 Speaker J4 Turbo LED J2 Power LED & keylock J5 Reset switch J3 USER CONFIGURABLE SETTINGS Function Jumper Position » Power good signal detect from JP1 pins 1 & 2 power supply closed Power good signal detect from JP1 pins 2 & 3 board closed » Monitor type select color JP2 pins 1 & 2 closed Monitor type select monochrome JP2 pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB 1 (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 5MB (4) 256K x 9 (4) 1M x 9 8MB 1 (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 17MB (4) 4M x 9 (4) 256K x 9 20MB (4) 4M x 9 (4) 1M x 9 32MB 1 (4) 4M x 9 (4) 4M x 9 64MB (4) 16M x 9 NONE 65MB (4) 16M x 9 (4) 256K x 9 68MB (4) 16M x 9 (4) 1M x 9 80MB (4) 16M x 9 (4) 4M x 9 128MB 1 (4) 16M x 9 (4) 16M x 9 Note 1 :These configurations support zero wait state reads. CPU TYPE CONFIGURATION Type JP4 JP5 JP6 80486SX pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed 80487SX pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 80486DX pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed 80486DX2 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed CPU SPEED CONFIGURATION Speed JP3 25MHz pins 2 & 3 closed 33MHz pins 1 & 2 closed 50iMHz pins 2 & 3 closed 66iMHz pins 1 & 2 closed