UNIDENTIFIED
80386 MOTHERBOARD (VER. 3.2)
Processor | 80386DX |
Processor Speed | 16/20/25/30MHz |
Chip Set | C & T |
Video Chip Set | None |
Maximum Onboard Memory | 16MB (8MB on external memory card) |
Maximum Video Memory | None |
Cache | Unidentified |
BIOS | AMI/Award/Phoenix |
Dimensions | 327mm x 218mm |
I/O Options | External memory card, cache connector |
NPU Options | 80287/80387DX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | JP3 | Turbo LED | JP7 |
Turbo switch | JP4 | Cache memory connector | JP11 |
Power LED & keylock | JP5 | Reset switch | JP12 |
Speaker | JP6 | External memory card | SL1 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | 8042 controller uses 23 pin control | JP1 | Pins 1 & 2 closed |
Circuit speed select by pressing CTRL, ALT + or - | JP1 | Pins 2 & 3 closed | |
Monitor type select color/EGA/VGA | JP2 | Pins 1 & 2 closed | |
Monitor type select monochrome | JP2 | Pins 2 & 3 closed | |
Battery type select external | JP3 | Closed | |
On board battery enabled | JP3 | Pins 1 & 2 closed | |
On board battery disabled | JP3 | Open | |
CMOS memory clear | JP3 | Pins 3 & 4 closed | |
» | Factory configured - do not alter | JP8 | Closed |
CACHE CONFIGURATION |
Note: The size of the cache module is unidentified. |
NPU SELECTION | ||
Type | JP9 | JP10 |
None installed | Pins 1 & 2 closed | Open |
80287 | Pins 1 & 2 closed | Open |
80387 | Pins 2 & 3 closed | Closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
2MB | 1MB | 1MB | None | None |
2MB | None | None | 1MB | 1MB |
8MB | None | None | 4MB | 4MB |
8MB | 4MB | 4MB | None | None |
16MB | 4MB | 4MB | 4MB | 4MB |
Note: The location of the banks are unidentified. The size of the chips are unidentified on the main board and memory card. Banks 1 & 2 are located on the main board. Banks 2 & 3 are located on the external memory card. |
DRAM JUMPER CONFIGURATION | ||
Setting | J1 | J2 |
No memory installed in main board | Pins 1 & 2, 4 & 5 closed | Pins 1 & 2, 4 & 5 closed |
Memory installed on main board | Pins 2 & 3, 5 & 6 closed | Pins 2 & 3, 5 & 6 closed |
Note: Either 2MB or 8MB will be installed on the memory card. |