System | diagnostics | tests (continued) |
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Color | graphics |
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| Adapter | check |
| Tests all types | ||
adapter and CRT |
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| Attribute | check |
| of color monitors | |||
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| Character set check |
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| Graphics mode | check |
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| Screen | paging | check |
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| Light pen check |
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| Video | check |
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| Sync | check |
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| Run all above checks |
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Diskette drive(s) |
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| Sequential seek | check | Tests operation | |||
and controller |
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| Random seek check | of the diskette | ||||
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| Write, read check | drive(s); requires | ||||
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| Disk change check | a formatted | |||
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| Run all above checks | diskette for some | |||
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| tests |
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Math |
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| Tests the |
coprocessor |
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| operation of the | |
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| 80387SX math |
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| coprocessor |
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Parallel port (printer |
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| Tests the primary | |||
interface) |
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| parallel port; | |
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| requires a loop- |
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| back connector |
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Serial | port |
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| Tests the primary |
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| serial port; | ||
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| requires a loop- |
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| back connector |
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Alternate |
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| Tests the | |
serial | port |
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| secondary serial |
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| port; similar to |
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| primary serial port |
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| test |
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