| also in this section: |
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Note that the game port cannot be disabled
| Jumper | Function | Enable | Disable |
| JP1 | HDD controller | 1&2 | 2&3 |
| JP2 | COM2 | 1&2 | 2&3 |
| JP3 | FDD controller | 1&2 | 2&3 |
| JP4 | LPT1 | 1&2 | 2&3 |
| JP5 | COM1 | 1&2 | 2&3 |
LPT address jumper
| Port | Address | JP4 | JP6 |
| LPT1 | 378 | 1&2 | 1&2 |
| LPT2 | 278 | 2&3 | 1&2 |
COM address jumper
| Port | Address | JP8 | JP7 |
| 1 | 3F8 | 1&2 | x |
| 1 | 3E8 | 2&3 | x |
| 2 | 2F8 | x | 1&2 |
| 2 | 2E8 | x | 2&3 |
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