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  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Reset switch  | 
 J10  | 
 External battery  | 
 JP1  | 
| 
 Power LED & keylock  | 
 J11  | 
 32-bit external memory card  | 
 S1  | 
| 
 Speaker  | 
 J12  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| » | 
 Battery select internal  | 
 JP2  | 
 Closed  | 
| 
 Battery select external  | 
 JP2  | 
 Open  | |
| » | 
 Monitor type select monochrome (AMI/Phoenix BIOS)  | 
 JP3  | 
 Open  | 
| 
 Monitor type select color  | 
 JP3  | 
 Closed  | |
| » | 
 Password enabled (MR BIOS)  | 
 JP3  | 
 Closed  | 
| 
 Password disabled  | 
 JP3  | 
 Open  | |
| » | 
 Factory configured - do not alter  | 
 JP9  | 
 N/A  | 
| » | 
 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 alter  | 
 JP28  | 
 Open  | 
| » | 
 Factory configured - do not alter  | 
 JP29  | 
 Open  | 
| 
 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.  | |||||