UNIDENTIFIED
286 VLSI TURBO MAINBOARD
Processor | 80286 |
Processor Speed | 12/16MHz |
Chip Set | VLSI |
Max. Onboard DRAM | 4MB |
Cache | None |
BIOS | AMI/Award/Phoenix |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 80287 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J13 | Power LED & keylock | J16 |
Turbo switch | J14 | Reset switch | J18 |
Turbo LED | J15 | Speaker | J19 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | IOCHRDY select normal | J4 | pins 1 & 2 closed |
IOCHRDY select add on card | J4 | pins 2 & 3 closed | |
» | Monitor type select color | J7 | pins 2 & 3 closed |
Monitor type select monochrome | J7 | pins 1 & 2 closed | |
» | Shadow BIOS enabled | J8 | Open |
Shadow BIOS disabled | J8 | Closed | |
» | Parity check enabled | J12 | pins 1 & 2 closed |
Parity check disabled | J12 | pins 2 & 3 closed |
DRAM CONFIGURATION | ||||||
Size | Bank 0 | P-0 | Bank 1 | P-1 | Bank 2 | Bank 3 |
512KB | (4) 44256 | (2) 41256 | NONE | NONE | NONE | NONE |
640KB | (4) 44256 | (2) 41256 | (4) 4464 | (2) 4164 | NONE | NONE |
1MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | NONE | NONE |
2MB | NONE | NONE | NONE | NONE | (2) 1M x 9 | NONE |
4MB | NONE | NONE | NONE | NONE | (2) 1M x 9 | (2) 1M x 9 |
DRAM JUMPER CONFIGURATION | |||
Size | J9 | J10 | J11 |
512KB | Open | Closed | Closed |
640KB | Closed | Open | Closed |
1MB | Closed | Open | Closed |
2MB | Open | Open | Open |
4MB | Closed | Open | Open |