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. | ||