| jumper | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| Number of Floppy Disk Drives | ||||||||
| 0 | ON | - | - | - | - | - | ON | ON |
| 1 | OFF | - | - | - | - | - | ON | ON |
| 2 | OFF | - | - | - | - | - | OFF | ON |
| 3 | OFF | - | - | - | - | - | ON | OFF |
| 4 | OFF | - | - | - | - | - | OFF | OFF |
| Monitor | ||||||||
| None | - | - | - | - | ON | ON | - | - |
| CGA | ||||||||
| 40X25 (TV) | - | - | - | - | OFF | ON | - | - |
| 80X25 Hi-Res | - | - | - | - | ON | OFF | - | - |
| Mono or both | - | - | - | - | OFF | OFF | - | - |
| RAM (NOTE:Switches 3 and 4 on block 1 must be "OFF") | ||||||||
|---|---|---|---|---|---|---|---|---|
| 64K | ON | ON | ON | ON | ON | OFF | OFF | OFF |
| 96K | OFF | ON | ON | ON | ON | OFF | OFF | OFF |
| 128K | ON | OFF | ON | ON | ON | OFF | OFF | OFF |
| 160K | ON | ON | OFF | OFF | OFF | ON | ON | ON |
| 192K | ON | ON | OFF | ON | ON | OFF | OFF | OFF |
| 224K | OFF | ON | OFF | ON | ON | OFF | OFF | OFF |
| 256K | ON | OFF | OFF | ON | ON | OFF | OFF | OFF |
| 288K | ON | OFF | OFF | ON | ON | OFF | OFF | OFF |
| 320K | ON | ON | ON | OFF | ON | OFF | OFF | OFF |
| 352K | OFF | ON | ON | OFF | ON | OFF | OFF | OFF |
| 384K | ON | OFF | ON | OFF | ON | OFF | OFF | OFF |
| 416K | OFF | OFF | ON | OFF | ON | OFF | OFF | OFF |
| 448K | ON | ON | OFF | OFF | ON | OFF | OFF | OFF |
| 480K | OFF | ON | OFF | OFF | ON | OFF | OFF | OFF |
| 512K | ON | OFF | OFF | OFF | ON | OFF | OFF | OFF |
| 544K | OFF | OFF | OFF | OFF | ON | OFF | OFF | OFF |
| 576K | ON | ON | ON | ON | OFF | OFF | OFF | OFF |
| 608K | OFF | ON | ON | ON | OFF | OFF | OFF | OFF |
| 640K | ON | OFF | ON | ON | OFF | OFF | OFF | OFF |