UNIDENTIFIED
386 CACHE 33MHZ
Processor | 80386SX (exact location unidentified) |
Processor Speed | 25/33MHz |
Chip Set | Unidentified |
Max. Onboard DRAM | 16MB (12MB on external memory card) |
Cache | 32/64KB |
BIOS | Phoenix |
Dimensions | 355mm x 305mm |
I/O Options | 32-bit external memory card |
NPU Options | 80387SX/3167(exact location unidentified) |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J1 | External memory card | SL1 |
Power LED & keylock | J2 | Reset switch | W3 |
External battery | J4 | Cache/turbo LED | W5 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
Battery type select internal | H1 | Closed | |
Battery type select external | H1 | Open | |
» | Factory configured - do not alter | SW2/1 | On |
NPU disabled | SW2/2 | Off | |
NPU enabled | SW2/2 | On | |
» | Factory configured - do not alter | SW2/3 | Off |
» | EGA BIOS relocated | SW2/4 | On |
EGA BIOS not relocated | SW2/4 | Off | |
» | Factory configured - do not alter | SW2/5 | Off |
Monitor type select CGA/EGA/VGA | SW2/6 | On | |
Monitor type select MGA | SW2/6 | Off | |
Slot speed select 12.5MHz | SW2/8 | On | |
Slot speed select 8.3MHz | SW2/8 | Off | |
» | Factory configured - do not alter | W1 | Open |
» | Factory configured - do not alter | W2 | Open |
» | Factory configured - do not alter | W6 | Open |
» | Factory configured - do not alter | W9 | Open |
» | Factory configured - do not alter | W10 | pins 2 & 3 closed |
» | Factory configured - do not alter | W12 | N/A |
» | Factory configured - do not alter | W14 | N/A |
» | Factory configured - do not alter | W15 | N/A |
» | Factory configured - do not alter | W16 | N/A |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (36) 41256 | NONE | NONE | NONE |
2MB | (36) 41256 | (36) 41256 | NONE | NONE |
4MB | (36) 411000 | NONE | NONE | NONE |
8MB | (36) 411000 | (36) 411000 | NONE | NONE |
16MB | (36) 411000 | (36) 411000 | (4) 1M x 9 | (4) 1M x 9 |
Note: Banks 1, 2, & 3 are located on the external memory card. |
DRAM SWITCH CONFIGURATION | |||||||
Size | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/6 | SW1/7 | SW1/8 |
1MB | On | Off | On | On | Off | Off | Off |
2MB | Off | On | On | On | Off | Off | Off |
4MB | On | On | Off | Off | Off | Off | Off |
8MB | Off | On | Off | Off | Off | Off | Off |
16MB | Off | Off | Off | Off | Off | Off | Off |
DRAM SPEED CONFIGURATION | ||
CPU speed | DRAM speed | SW1/5 |
25MHz | 80ns | Off |
25MHz | 100ns | Off |
25MHz | 120ns | On |
33MHz | 60ns | Off |
33MHz | 80ns | On |
CACHE CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
32KB | (4) 8K x 8 | NONE |
64KB | (4) 8K x 8 | (4) 8K x 8 |
CACHE JUMPER CONFIGURATION | ||
Size | W8 | W13 |
32KB | pins 1 & 2 closed | pins 1 & 2 closed |
64KB | pins 2 & 3 closed | pins 2 & 3 closed |
CACHE JUMPER/SWITCH CONFIGURATION | ||
Setting | W4 | SW2/7 |
Enabled | pins 1 & 2 closed | On |
Disabled | pins 2 & 3 closed | Off |
NPU CONFIGURATION | ||
Setting | W7 | W11 |
Asynchronous | Closed | pins 1 & 2 closed |
Synchronous | Open | pins 2 & 3 closed |