UNIDENTIFIED
386 MOTHERBOARD
Processor | 80386SX |
Processor Speed | 16/25MHz |
Chip Set | C & T |
Max. Onboard DRAM | 8MB |
Cache | None |
BIOS | AMI |
Dimensions | 254mm x 218mm |
I/O Options | 32-bit external memory cards (2) |
NPU Options | 80287/80387SX/3167 (location of the 80287 is unidentified) |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | CN1 | Reset switch | J19 |
Turbo switch | J16 | Turbo LED | J22 |
Power LED & keylock | J17 | 32-bit system memory cards | SL1 & SL2 |
Speaker | J18 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | CN2 | N/A |
80287 not installed | JP1 | Open | |
80287 installed | JP1 | Closed | |
Monitor type select color | JP3 | pins 1 & 2 closed | |
Monitor type select monochrome | JP3 | pins 2 & 3 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 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
NPU TYPE CONFIGURATION (80387/WEITEK ONLY) | ||
Setting | JP11 | JP12 |
NPU not installed | Open | Open |
NPU installed | Closed | Closed |
MISCELLANEOUS TECHNICAL NOTE |
Note: The location of pin 1 is unidentified. |