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