UNIDENTIFIED
386/25 CACHE
Processor | 80386SX |
Processor Speed | 25MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 16MB |
Cache | 32/64KB (location unidentified) |
BIOS | AMI |
Dimensions | 330mm x 220mm |
I/O Options | Memory card |
NPU Options | 80387SX/3167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J1 | Turbo switch | J14 (pins 7 & 8) |
Speaker | J14 (pins 1 - 4) | Power LED & keylock | J15 |
Reset switch | J14 (pins 5 & 6) | External memory card | S1 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Battery type select external | J1 | Closed |
Battery type select internal | J1 | pins 2 & 3 closed | |
Monitor type select color | J2 | Closed | |
Monitor type select monochrome | J2 | Open | |
» | Factory configured - do not alter | J4 | pins 2 & 3 closed |
» | Factory configured - do not alter | J10 | pins 1 & 2 closed |
» | Factory configured - do not alter | J11 | pins 1 & 2 closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
512KB | (2) 256K x 9 | NONE | NONE | NONE |
1MB | (2) 256K x 9 | (2) 256K x 9 | NONE | NONE |
1.5MB | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 | NONE |
2MB | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 |
2MB | (2) 1M x 9 | NONE | NONE | NONE |
2.5MB | (2) 256K x 9 | (2) 1M x 9 | NONE | NONE |
2.5MB | (2) 1M x 9 | (2) 256K x 9 | NONE | NONE |
3MB | (2) 256K x 9 | (2) 256K x 9 | (2) 1M x 9 | NONE |
3MB | (2) 256K x 9 | (2) 1M x 9 | (2) 256K x 9 | NONE |
3MB | (2) 1M x 9 | (2) 256K x 9 | (2) 256K x 9 | NONE |
3.5MB | (2) 256K x 9 | (2) 256K x 9 | (2) 1M x 9 | (2) 256K x 9 |
3.5MB | (2) 256K x 9 | (2) 1M x 9 | (2) 256K x 9 | (2) 256K x 9 |
3.5MB | (2) 1M x 9 | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 |
4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
4.5MB | (2) 256K x 9 | (2) 1M x 9 | (2) 1M x 9 | NONE |
4.5MB | (2) 1M x 9 | (2) 1M x 9 | (2) 256K x 9 | NONE |
4.5MB | (2) 1M x 9 | (2) 256K x 9 | (2) 1M x 9 | NONE |
5MB | (2) 256K x 9 | (2) 256K x 9 | (2) 1M x 9 | (2) 1M x 9 |
5MB | (2) 256K x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 256K x 9 |
5MB | (2) 1M x 9 | (2) 1M x 9 | (2) 256K x 9 | (2) 256K x 9 |
10MB | (2) 1M x 9 | (2) 256K x 9 | (2) 1M x 9 | (2) 256K x 9 |
6.5MB | (2) 256K x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
6.5MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 256K x 9 |
6.5MB | (2) 1M x 9 | (2) 256K x 9 | (2) 1M x 9 | (2) 1M x 9 |
8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M 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 |
Note: The location of CACHE is unidentified. |
CACHE JUMPER CONFIGURATION | |||
Size | J5 | J8 | J9 |
32KB | pins 1 & 2 closed | Open | pins 1 & 2 closed |
64KB | pins 2 & 3 closed | Closed | pins 2 & 3 closed |
CACHE MEMORY LINE CONFIGURATION | ||
Size | J6 | J7 |
4 Bytes | Closed | pins 1 & 2 closed |
8 Bytes | Closed | pins 2 & 3 closed |
16 Bytes | Open | pins 2 & 3 closed |
BIOS ROM TYPE CONFIGURATION | |
TYPE | J3 |
32Kb x 8 | pins 2 & 3 closed |
64KB x 8 | pins 1 & 2 closed |