UNIDENTIFIED ACE CACHE 486 Processor 80486DX Processor Speed 25/33/40MHz Chip Set C & T Max. Onboard DRAM 32MB Cache 64/256KB BIOS AMI/MR/Phoenix Dimensions 330mm x 218 I/O Options 32-bit external memory card NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Reset switch J10 External battery JP1 Power LED & keylock J11 32-bit external S1 memory card Speaker J12 USER CONFIGURABLE SETTINGS Function Jumper Position » Battery select internal JP2 Closed Battery select external JP2 Open » Monitor type select monochrome JP3 Open (AMI/Phoenix BIOS) Monitor type select color JP3 Closed » Password enabled (MR BIOS) JP3 Closed Password disabled JP3 Open » Factory configured - do not JP9 N/A alter » Onboard DRAM enabled JP10 & JP11 pins 1 & 2, 3 & 4 closed Onboard DRAM disabled JP10 & JP11 pins 2 & 3, 4 & 5 closed » Factory configured - do not JP28 Open alter » Factory configured - do not JP29 Open alter DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (4) 256K x 9 NONE NONE NONE 2MB (4) 256K x 9 (4) 256K x 9 NONE NONE 3MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 NONE 4MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE NONE NONE 5MB (4) 256K x 9 (4) 1M x 9 NONE NONE 6MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 NONE 7MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 NONE NONE 9MB (4) 1M x 9 (4) 1M x 9 (4) 256K x 9 NONE 10MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 (4) 1M x 9 12MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 NONE 13MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 256K x 9 16MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE NONE NONE 17MB (4) 4M x 9 (4) 256K x 9 NONE NONE 18MB (4) 256K x 9 (4) 256K x 9 (4) 4M x 9 NONE 19MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 (4) 4M x 9 20MB (4) 4M x 9 (4) 1M x 9 NONE NONE 21MB (4) 256K x 9 (4) 1M x 9 (4) 4M x 9 NONE 22MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 (4) 4M x 9 24MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 NONE 25MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 (4) 256K x 9 28MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 NONE NONE 33MB (4) 4M x 9 (4) 4M x 9 (4) 256K x 9 NONE 34MB (4) 256K x 9 (4) 256K x 9 (4) 4M x 9 (4) 4M x 9 36MB (4) 4M x 9 (4) 4M x 9 (4) 1M x 9 NONE 37MB (4) 4M x 9 (4) 4M x 9 (4) 256K x 9 (4) 1M x 9 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 40MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 48MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 NONE 49MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 256K x 9 52MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 1M x 9 64MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 Note:Banks 2 and 3 are used when a 32-bit external memory card is installed at S1. CACHE CONFIGURATION Size Bank 0 64KB (8) 8K x 8 256KB (8) 32K x 8 CACHE CONFIGURATION Size JP4 JP5 JP6 JP7 JP8 64KB 2 & 3 2 & 3 Open Open Open 256KB 1 & 2 1 & 2 Closed Closed Closed Note: Pins designated should be in the closed position.