JC INFORMATION SYSTEMS CORPORATION 486 SX/DX MODEL 270 Processor 80486SX/80487SX/80486DX/80486DX2 Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set C & T Max. Onboard DRAM 32MB Cache 64/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit memory expansion slot NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location External battery J11 32 bit memory SL1 expansion slot Power LED & keylock J20 Reset switch SW1 Speaker J21 Turbo switch SW2 Turbo LED JP11 USER CONFIGURABLE SETTINGS Function Jumper Position » Enable onboard battery JP1 pins 2 & 3 closed Enable external battery JP1 Open » Monitor type select color JP2 Closed Monitor type select monochrome JP2 Open » Factory configured do not alter JP3 N/A » Factory configured do not alter JP4 N/A » Factory configured do not alter JP5 N/A » Factory configured do not alter JP7 N/A » Factory configured do not alter JP9 N/A » Factory configured do not alter JP10 N/A » Turbo switch not available JP11 Closed » Factory configured do not alter JP12 N/A 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) 1M x 9 (4) 256K x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 TAG 64KB (8) 8K x 8 (1) 8K x 8 256KB (8) 32K x 8 (1) 32K x 8