MICRO-STAR INTERNATIONAL CO., LTD. MS-4116 VER. 2.0 Processor 80486SX/80487SX/80486DX/80486DX2 Processor Speed 25/33/50(internal)/50/66(internal)MHz Chip Set Unidentified Max. Onboard DRAM128MB Cache 64/128/256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options 32-bit external memory card, 32-bit VESA local bus slot NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Auxiliary keyboard JP1 Turbo switch JP20 pins 15 - connector 17 External battery JP5 Reset switch JP20 pins 19 & 20 Power LED & JP20 pins 1 - 32-bit VESA local SL1 keylock 5 bus slot Speaker JP20 pins 7 - 32-bit external SL2 10 memory card Turbo LED JP20 pins 12 & 13 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color JP4 Closed Monitor type select monochrome JP4 Open » Battery type select internal JP5 pins 2 & 3 closed Battery type select external JP5 Closed » Factory configured - do not JP14 pins 2 & 3 alter closed » Factory configured - do not JP15 pins 2 & 3 alter closed » Factory configured - do not JP16 pins 2 & 3 alter closed » Factory configured - do not JP21 N/A alter » Factory configured - do not JP22 N/A alter » Factory configured - do not JP23 N/A alter » Factory configured - do not JP24 N/A alter 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) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 17MB (4) 256K x 9 (4) 4M x 9 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 64MB (4) 16M x 9 NONE Note: In order to use 128MB, an external memory card must be installed. It uses the same configuration as above. 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) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP6 JP7 JP8 JP9 JP10 JP11 JP12 64KB 1 & 2 1 & 2 2 & 3 Open Open Open Open 128KB 1 & 2 2 & 3 2 & 3 Closed Open Closed Open 256KB 2 & 3 2 & 3 2 & 3 Closed Closed Closed Closed Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP13 JP17 JP18 80486SX Open pins 2 & 3 Open closed 80487SX Closed pins 1 & 2 pins 2 & 3 closed closed 80486DX Closed pins 1 & 2 pins 1 & 2 closed closed 80486DX2 Closed pins 1 & 2 pins 1 & 2 closed closed CPU SPEED CONFIGURATION Speed JP24 25MHz pins 2 & 3 closed 33MHz pins 2 & 3 closed 50iMHz pins 2 & 3 closed 50MHz pins 1 & 2 closed 66iMHz pins 2 & 3 closed BUS SPEED CONFIGURATION CPU speed JP19 <= 33MHz pins 2 & 3 closed > 33MHz pins 1 & 2 closed