System diagnostic | tests | (continued) |
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Component | Tests |
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Hard disk | Hard disk format | See “Hard Disk Diagnostics” | ||
drives | Media analysis |
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| Performance |
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| Seek |
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| Read/verify |
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| Check test cylinder |
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| Force bad tracks |
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Floppy disk | Diskette | format | See “Floppy Disk | |
drives | Drive speed | Diagnostics” | ||
| Random read/write |
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| Sequential | read/write |
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| Disk change line |
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Keyboard | Controller |
| Tests the keyboard controller | |
| Scan/ASCII | code | Tests the scan codes assigned | |
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| to the keys |
| Keyboard clock line | Tests the keyboard clock line | ||
| Keyboard | data line | Tests the keyboard data line | |
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Video | Adapter |
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| Tests the display adapter |
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| memory |
| Attribute |
| Tests the display adapter | |
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| attributes |
| 80 x 25 display | Tests the 80 x 25 display | ||
| 40 x 25 display* | Tests the 40 x 25 display | ||
| 320 x 200 graphics* | Tests the 320 x 200 graphics | ||
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| display |
| 640 x 200 graphics* | Tests the 640 x 200 graphics | ||
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| display |
| Page selection* | Tests the paging function of | ||
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| the adapter |
| Color* |
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| Tests the background and |
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| border color mapping |
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* Test appears only if you have installed a color monitor.
Performing System Diagnostics | C - 1 1 |