BIOSTAR MICROTECH INTERNATIONAL CORPORATION
MB-1212V
| Processor | 80286 | 
| Processor Speed | 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 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Reset switch | JP1 | Turbo switch | JP4 | 
| Power LED & keylock | JP2 | Turbo LED | JP5 | 
| Speaker | JP3 | External battery | JP17 | 
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper | Position | |
| » | DRAM speed select 100ns | JP6 | pins 1 & 2 closed | 
| DRAM select 0 wait states | JP10 | Closed | |
| DRAM select 1 wait state | JP10 | Open | |
| » | BIOS type select 27256 | JP11 | pins 1 & 2 closed | 
| BIOS type select 27128 | JP11 | pins 2 & 3 closed | |
| » | Monitor type select color | JP12 | pins 1 & 2 closed | 
| Monitor type select monochrome | JP12 | pins 2 & 3 closed | |
| Keyboard controller set on pin 30 | JP13 | Closed | |
| Keyboard controller set on pin 23 | JP14 | Closed | |
| Keyboard controller set on pin 27 | JP14 | Closed | |
| Keyboard controller set on pin 32 | JP18 | Closed | |
| Power good signal detect | JP16 | N/A | |
| » | Parity check enabled | JP19 | pins 1 & 2 closed | 
| Parity check disabled | JP19 | pins 2 & 3 closed | |
| DRAM CONFIGURATION | |||||||
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | Bank 4 | P-0 | P-1 | 
| 512KB | (4) 44256 | NONE | NONE | NONE | NONE | (2) 41256 | NONE | 
| 640KB | (4) 44256 | NONE | NONE | NONE | (4) 4464 | (2) 41256 | (2) 4164 | 
| 640KB | (4) 44256 | NONE | NONE | (16) 4164 | NONE | (2) 41256 | (2) 4164 | 
| 1MB | (4) 44256 | (4) 44256 | NONE | NONE | NONE | (2) 41256 | (2) 41256 | 
| 2MB | NONE | NONE | (16) 411000 | NONE | NONE | (2) 411000 | NONE | 
| 4MB | NONE | NONE | (16) 411000 | (16) 411000 | NONE | (2) 411000 | (2) 411000 | 
| DRAM JUMPER CONFIGURATION | |||
| Size | JP7 | JP8 | JP9 | 
| 512KB | Closed | Closed | Closed | 
| 640KB | Closed | Closed | Open | 
| 1MB | Closed | Open | Closed | 
| 2MB | Closed | Open | Open | 
| 4MB | Open | Closed | Closed |