UNIDENTIFIED
12MHZ 286 TURBO
| Processor | 80286 (exact location unidentified) | 
| Processor Speed | 10/12MHz | 
| Chip Set | VLSI | 
| Max. Onboard DRAM | 4MB | 
| Cache | None | 
| BIOS | AMI/Award/Phoenix | 
| Dimensions | 330mm x 218mm | 
| I/O Options | None | 
| NPU Options | 80287(exact location unidentified) | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Speaker | J23 | Reset switch | CN23 | 
| Turbo switch | CN20 | Power LED & keylock | CN24 | 
| Turbo LED | CN22 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper | Position | |
| Monitor type select color | J3 | Closed | |
| Monitor type select monochrome | J3 | Open | |
| Wait state select 0 wait states | J4 | Closed | |
| Wait state select 1 wait state | J4 | Open | |
| DRAM CONFIGURATION | |||||
| Size | Bank 0 | Bank 0A | Bank 0B | Bank 1 | Bank 1A | 
| 512KB | (8) 41256 | NONE | NONE | (8) 41256 | NONE | 
| 512KB | NONE | (2) 44256 | NONE | NONE | (2) 44256 | 
| 640KB | (8) 41256 | NONE | NONE | (8) 41256 | NONE | 
| 640KB | NONE | (2) 44256 | NONE | NONE | (2) 44256 | 
| 1MB | (8) 41256 | NONE | NONE | (8) 41256 | NONE | 
| 1MB | NONE | (2) 44256 | NONE | NONE | (2) 44256 | 
| 2MB | (9) 411000 | NONE | NONE | (9) 411000 | NONE | 
| 4MB | (9) 411000 | NONE | NONE | (9) 411000 | NONE | 
| DRAM CONFIGURATION (CON’T) | |||||
| Size | Bank 1B | Bank 2 | Bank 2A | Bank 3 | Bank 3A | 
| 512KB | NONE | NONE | NONE | NONE | NONE | 
| 512KB | NONE | NONE | NONE | NONE | NONE | 
| 640KB | NONE | (8) 4164 | NONE | (8) 4164 | NONE | 
| 640KB | NONE | NONE | (2) 4464 | NONE | (2) 4464 | 
| 1MB | NONE | (8) 41256 | NONE | (8) 41256 | NONE | 
| 1MB | NONE | NONE | (2) 44256 | NONE | (2) 44256 | 
| 2MB | NONE | NONE | NONE | NONE | NONE | 
| 4MB | NONE | (9) 411000 | NONE | (9) 411000 | NONE | 
| Note: See table below for parity configuration. | |||||
| DRAM PARITY CONFIGURATION | ||||
| Size | P 0 | P 1 | P 2 | P 3 | 
| 512KB | (1) 41256 | (1) 41256 | NONE | NONE | 
| 512KB | NONE | NONE | NONE | NONE | 
| 640KB | (1) 41256 | (1) 41256 | (1) 4164 | (1) 4164 | 
| 640KB | NONE | NONE | NONE | NONE | 
| 1MB | (1) 41256 | (1) 41256 | (1) 41256 | (1) 41256 | 
| 1MB | NONE | NONE | NONE | NONE | 
| 2MB | NONE | NONE | NONE | NONE | 
| 4MB | NONE | NONE | NONE | NONE | 
| DRAM CONFIGURATION (SIMM) | ||
| Size | Bank 0B | Bank 1B | 
| 512KB | (2) 256K x 9 | NONE | 
| 1MB | (2) 256K x 9 | (2) 256K x 9 | 
| 2MB | (2) 1M x 9 | NONE | 
| 4MB | (2) 1M x 9 | (2) 1M x 9 | 
| DRAM JUMPER CONFIGURATION | |||
| Size | J6 | J7 | J8 | 
| 512KB | Closed | Closed | Closed | 
| 640KB | Closed | Closed | Open | 
| 1MB | Closed | Open | Closed | 
| 2MB | Closed | Open | Open | 
| 4MB | Open | Closed | Closed |