CALIBER COMPUTER 486 WB-U1 Processor 80486SX/80487SX/80486DX/80486DX2 Processor Speed 16/20/25/33/50(internal)/50/66(internal)MHz Chip Set UNI Max. Onboard DRAM 32MB Cache 32/64/128/256KB BIOS AMI Dimensions 240mm x 220mm I/O Options None NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery JP1 Turbo LED JP16 Reset switch JP14 Speaker JP17 Turbo switch JP15 Power LED & keylock JP18 USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation JP2 pins 1 & 2 closed CMOS memory clear JP2 pins 2 & 3 closed » Gate A20 connection select KBGA20 JP10 pins 2 & 3 closed Gate A20 connection select JP10 pins 1 & 2 emulated KBGA20 closed » Monitor type select color JP12 Closed Monitor type select monochrome JP12 Open 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 20MB (4) 4M x 9 (4) 1M x 9 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) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION (WRITE-BACK) Size JP22 JP23 JP25 JP26 32KB pins 2 & 3 pins 2 & 3 pins 1 & 2 pins 2 & 3 closed closed closed closed 64KB pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed closed 128KB pins 2 & 3 pins 1 & 2 pins 2 & 3 pins 2 & 3 closed closed closed closed 256KB pins 1 & 2 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed CACHE JUMPER CONFIGURATION FOR (WRITE-THROUGH) Size JP22 JP23 JP25 JP26 32KB pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed 64KB pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed 128KB pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed 256KB pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed CACHE RESISTOR CONFIGURATION Size J27 J28 J29 J30 32KB Installed Not installed Not installed Not installed 64KB Not installed Installed Not installed Not installed 128KB Not installed Not installed Installed Not installed 256KB Not installed Not installed Not installed Installed CPU CONFIGURATION Type Speed JP3 JP7 JP9 JP13 80486SX 16MHz 1 & 2 Open 2 & 3 2 & 3 80486SX 20MHz 1 & 2 Open 2 & 3 2 & 3 80486SX 25MHz 2 & 3 Open 2 & 3 2 & 3 80487SX 20MHz 1 & 2 2 & 3 1 & 2, 3 1 & 2 & 4 80486DX 25MHz 1 & 2 1 & 2 1 & 2, 3 1 & 2 & 4 80486DX 33MHz 1 & 2 1 & 2 1 & 2, 3 1 & 2 & 4 80486DX 50MHz 2 & 3 1 & 2 1 & 2, 3 1 & 2 & 4 80486DX2 50MHz 1 & 2 1 & 2 1 & 2, 3 1 & 2 & 4 80486DX2 66MHz 1 & 2 1 & 2 1 & 2, 3 1 & 2 & 4 Note:Pins designated should be in the closed position.