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IBM PC XT Setup
| Note: Some Sitchblocks are labeled ON and OFF; others are labeled ON and OPEN. OPEN is the off position. On my drawings ON is always up. This example shows the first switch in it's normal OFF position. NEVER move this switch to the on position. |  |
Motherboard layout
Switch 1 2 3-4 5-6 7-8 |
Function Normal Operation; Always OFF Coprocessor System board memory Display type Number of disk drives installed |
Coprocessor
| With Coprocessor |  |
| Without Coprocessor |  |
Memory
| 256k |  |
| 512k |  |
| 640k |  |
Display
| EGA or NO adapter at all |  |
| CGA 40X25 |  |
| CGA 80X25 | |
| Mono or Mono + CGA |  |
Disk Drives
| One disk drive |  |
| Two disk drives |  |