UNIDENTIFIED
A-B 333SX
Processor | AM386SX/80386SX |
Processor Speed | 25/33MHz |
Chip Set | Unidentified |
Max. Onboard DRAM | 16MB |
Cache | 16/32/64/128KB |
BIOS | AMI |
Dimensions | 220mm x 220mm |
I/O Options | None |
NPU Options | 80387SX (exact location unidentified) |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J10 | Turbo switch | JP9 |
Power LED & keylock | J15 | Turbo LED | JP12 |
Speaker | J18 | Reset switch | JP13 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CMOS memory normal operation (internal battery) | JP8 | pins 2 & 3 closed |
CMOS memory normal operation (external battery) | JP8 | Open | |
CMOS memory clear | JP8 | pins 1 & 2 closed | |
» | Monitor type select color | JP10 | Closed |
Monitor type select monochrome | JP10 | Open |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
512KB | (2) 256K x 9 | NONE |
1MB | (2) 256K x 9 | (2) 256K x 9 |
2MB | (2) 1M x 9 | NONE |
2.5MB | (2) 1M x 9 | (2) 256K x 9 |
4MB | (2) 1M x 9 | (2) 1M x 9 |
8MB | (2) 4M x 9 | NONE |
16MB | (2) 4M x 9 | (2) 4M x 9 |
CACHE CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
16KB | (2) 8K x 8 | NONE |
32KB | (2) 8K x 8 | (2) 8K x 8 |
64KB | (2) 32K x 8 | NONE |
128KB | (2) 32K x 8 | (2) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||||
Size | JP1 | JP2 | JP3 | JP4 |
16KB | pins 2 & 3 closed | Open | Open | pins 2 & 3 closed |
32KB | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
64KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 2 & 3 closed | pins 2 & 3 closed |
128KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed |
Note: Jumper location is approximated, check board for actual location. |