UNIDENTIFIED
286-SYSTEM BOARD
Processor | AM286/80286 |
Processor Speed | 6/8/10/12/16MHz |
Chip Set | VLSI |
Video Chip Set | None |
Maximum Onboard Memory | 4MB |
Maximum Video Memory | None |
Cache | None |
BIOS | AMI/Award/Phoenix |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 80287 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J1 | Turbo LED | J4 |
Power LED & keylock | J2 | Turbo switch | J5 |
Reset switch | J3 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
BIOS type select 27128 | JP1 | Pins 2 & 3 closed | |
BIOS type select 27256 | JP1 | Pins 1 & 2 closed | |
Monitor type select color | JP7 | Closed | |
Monitor type select monochrome | JP7 | Open | |
Wait state select 0 wait states | JP8 | Closed | |
Wait state select 1 wait state | JP8 | Open |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
512KB | (18) 41256 | None | None | None |
512KB | None | None | (2) 256K x 9 | None |
640KB | (18) 41256 | (18) 4164 | None | None |
1MB | (18) 41256 | (18) 41256 | None | None |
1MB | None | None | (2) 256K x 9 | (2) 256K x 9 |
2MB | (18) 411000 | None | None | None |
2MB | None | None | (2) 1M x 9 | None |
4MB | (18) 411000 | (18) 411000 | None | None |
4MB | None | None | (2) 1M x 9 | (2) 1M x 9 |
DRAM JUMPER CONFIGURATION | |||
Size | JP2 | JP3 | JP4 |
512KB | Open | Closed | Closed |
640KB | Closed | Open | Open |
1MB | Closed | Open | Closed |
2MB | Closed | Closed | Open |
4MB | Closed | Closed | Closed |
CPU SPEED SELECTION | |
Speed | JP6 |
6/12MHz | Open |
8/12MHz | Closed |