UNIDENTIFIED
VLSI 89402-1
| Processor | 80286 | 
| Processor Speed | 12MHz | 
| Chip Set | VLSI | 
| Video Chip Set | None | 
| Maximum Onboard Memory | 4MB | 
| Maximum Video Memory | None | 
| Cache | None | 
| BIOS | AMI/Award | 
| Dimensions | 330mm x 218mm | 
| I/O Options | None | 
| NPU Options | 80287 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Turbo LED | JP10 | Power LED & keylock | JP15 | 
| Turbo switch | JP11 | External battery | JP17 | 
| Speaker | JP14 | Reset switch | JP21 | 
| USER CONFIGURABLE SETTINGS | |||
| Function | Label | Position | |
| Monitor type select color | JP4 | Closed | |
| Monitor type select monochrome | JP4 | Open | |
| Turbo enabled | JP11 | Closed | |
| Turbo disabled & switchable through keyboard (CRTL, ALT, +/-) | JP11 | Open | |
| ROM wait state select 2 wait states | JP9 | Closed | |
| ROM wait state select 1 wait state | JP9 | Open | |
| » | Battery type select internal | JP16 | Closed | 
| Battery type select external | JP16 | Open | |
| » | BIOS type select 27128 | JP18 | Open | 
| BIOS type select 27256 | JP18 | Closed | |
| » | Fast mode enabled | JP19 | Closed | 
| Fast mode disabled | JP19 | Open | |
| Wait state select 0 wait states | JP20 | Closed | |
| Wait state select 1 wait state | JP20 | Open | |
| » | Factory configured - do not alter | JP22 | Unidentified | 
| » | Factory configured - do not alter | JP23 | Unidentified | 
| Parity check disabled | JP24 | Pins 1 & 2 closed | |
| Parity check enabled | JP24 | Pins 2 & 3 closed | |
| 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 | None | None | (2) 1M x 9 | None | 
| 2MB | (18) 411000 | None | None | None | 
| 4MB | (18) 411000 | (18) 411000 | None | None | 
| 4MB | None | None | (2) 1M x 9 | (2) 1M x 9 | 
| Note: The location of banks 0, 1, 2 & 3 are unidentified. | ||||
| DRAM JUMPER CONFIGURATION | |||
| Size | JP1 | JP2 | JP3 | 
| 512KB | Closed | Closed | Closed | 
| 640KB | Closed | Open | Closed | 
| 1MB | Closed | Closed | Open | 
| 2MB | Closed | Open | Open | 
| 4MB | Open | Closed | Closed | 
| CPU SPEED SELECTION | |
| Speed | JP12 | 
| 6/12MHz | Open | 
| 8/12MHz | Closed |