UNIDENTIFIED
OPTI-386WB
Processor | 80386DX |
Processor Speed | 33/40MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 40MB (8MB on external memory card) |
Cache | 32/64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit external memory card |
NPU Options | 80387DX/3167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J10 | 32-bit external memory card | SL1 |
Power LED & keylock | J23 | Reset switch | SW1 |
Speaker | J24 | Turbo switch | SW2 |
Turbo LED | JP4 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select monochrome | JP1 | Open |
Monitor type select color | JP1 | Closed | |
» | CMOS memory normal operation | JP2 | pins 2 & 3 closed |
CMOS memory clear | JP2 | pins 1 & 2 closed | |
» | I/O bus speed select ATCLK/6 | JP3 | Open |
I/O bus speed select ATCLK/8 | JP3 | Closed | |
» | NPU synchronous with CPU | JP14 | Open |
NPU asynchronous with CPU | JP14 | Closed |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
32KB | (4) 8K x 8 | NONE |
64KB | (4) 8K x 8 | (4) 8K x 8 |
128KB | (4) 32K x 8 | NONE |
256KB | (4) 32K x 8 | (4) 32K x 8 |
CACHE TAG CONFIGURATION | |||
Size | TAG (U32) | TAG (U33) | TAG (U42) |
32KB | (1) 16K x 4 | (1) 16K x 4 | (1) 16K x 4 |
64KB | (1) 16K x 4 | (1) 16K x 4 | (1) 16K x 4 |
128KB | (1) 16K x 4 | (1) 16K x 4 | (1) 16K x 4 |
256KB | (1) 16K x 4 | (1) 16K x 4 | (1) 16K x 4 |
CACHE JUMPER CONFIGURATION | ||||||
Size | JP5 | JP6 | JP7 | JP8 | JP9 | JP10 |
32KB | 1 & 2 | 1 & 2 | 1 & 2 | Open | 2 & 3 | 2 & 3 |
64KB | 2 & 3 | 1 & 2 | 1 & 2 | Open | 2 & 3 | 1 & 2 |
128KB | 2 & 3 | 1 & 2 | 2 & 3 | Closed | 2 & 3 | 1 & 2 |
256KB | 2 & 3 | 2 & 3 | 2 & 3 | Closed | 1 & 2 | 1 & 2 |
Note: Pins designated should be in the closed position. |