UNIDENTIFIED
486-25/33 CACHE
Processor | 80486DX |
Processor Speed | 25/33MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 32MB |
Cache | 64/128KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit external memory card slot |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Reset switch | JP1 | Turbo switch | JP10 |
Speaker | JP2 | Turbo LED | JP11 |
External battery | JP8 | 32-bit external memory card | S1 |
Power LED & keylock | JP9 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | JP6 | pins 2 & 3 closed |
Monitor type select monochrome | JP6 | pins 1 & 2 closed | |
» | CMOS memory normal operation | JP7 | pins 1 & 2 closed |
CMOS memory clear | JP7 | pins 2 & 3 closed | |
» | CPU speed select switchable at keyboard | JP10 | Closed |
CPU speed select forced fast | JP10 | 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) 1M x 9 | (4) 256K x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
9MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M 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) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M 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 |
32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
Note:Banks 2 & 3 are used when a 32-bit external memory card is installed at S1. |
CACHE CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | T 1 | T2 |
64KB | (8) 8K x 8 | NONE | (1) 8K x 8 | (1) 8K x 8 |
128KB | (8) 8K x 8 | (8) 8K x 8 | (1) 8K x 8 | NONE |
CACHE JUMPER CONFIGURATION | |||||
Size | J1 | J2 | J3 | J4 | J5 |
64KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
128KB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated should be in the closed position. |