| jumper | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| Keyboard | ||||||||
| Enhanced | OFF | - | - | - | - | - | - | - |
| CO-Processor | ||||||||
| Installed | - | OFF | - | - | - | - | - | - |
| Not Installed | - | ON | - | - | - | - | - | - |
| RAM | ||||||||
| 640K | - | - | OFF | OFF | - | - | - | - |
| 512K | - | - | OFF | ON | - | - | - | - |
| 265K | - | - | ON | ON | - | - | - | - |
| Monitor type | ||||||||
| Color (40X25) | - | - | - | - | OFF | ON | - | - |
| Color (80X25) | - | - | - | - | ON | OFF | - | - |
| Monochrome | - | - | - | - | OFF | OFF | - | - |
| Enhanced | - | - | - | - | - | ON | ON | - |
| Number of Floppy Disk Drives | ||||||||
| 1 | - | - | - | - | - | - | ON | ON |
| 2 | - | - | - | - | - | - | OFF | ON |
| 3 | - | - | - | - | - | - | ON | OFF |
| 4 | - | - | - | - | - | - | OFF | OFF |
| Parallel | |||||
|---|---|---|---|---|---|
| Jumper | 1 | 2 | 3 | 4 | |
| Primary | OFF | ON | - | - | |
| Secondary | OFF | OFF | - | - | |
| Disable | ON | ON | - | - | |
| Serial | |||||
| Primary | - | - | OFF | OFF | |
| Secondary | - | - | ON | OFF | |
| Disable | - | - | - | ON | |