HP Vectra VLi 8, Supplementary Manual

Page: 22 / 138

1 Troubleshooting Your PC
Troubleshooting Help Zone
22
Keyboard or Mouse Test Error
Problem Possible cause To try and fix this...
POST displays a keyboard
or mouse test error. The keyboard and mouse cables are
incorrectly connected. 1 Switch off the PC.
2 Plug the cables into the correct connectors on the back of the PC.
These are color coded to help you connect them properly.
The keyboard is not clean and keys are
sticking.
The mouse is not clean. • Check all keys are at the same height, and none are stuck
(keyboard).
•
Clean the mouse pad, the underneath of the mouse, as well as the
mouse ball mechanism, shown below.
If the problem persists, run DiagTools to diagnose the problem. Refer to page 14.
You may need to update your PC’s Basic Input Output System (BIOS). Create a floppy to update your PC’s BIOS. Refer to page 41.
The keyboard/mouse are not working 1 Switch off the PC.
2 Replace the keyboard/mouse by known working units.
3 Switch on the PC, and check it works.
More Advanced Troubleshooting
The system board is not working. 1 Disconnect the power cord.
2 Remove the PC’s cover. See page 47 (DT) or page 81 (MT).
3 Replace the system board by a known working board from the
same model of PC. See page 70 (DT) or page 107 (MT).
4 Close the PC, reconnect the power cord and check that the PC
boots (starts).
5 If the keyboard/mouse works, contact your authorized support
provider for further troubleshooting information.