HP Vectra XU 6/XXX, User Manual

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4 Troubleshooting Your PC and Using the Setup Program
If Your PC Has a Hardware Problem
84 English
If the Hard Disk Activity Light Does Not Work
If the hard disk activity light does not flicker when the PC is accessing
the hard disk drive:
1 Check that the control panel connector is firmly attached to the
system board.
2 Check that the disk power and data cables are correctly connected
(refer to chapter 3).
If an Accessory Board Does Not Work
Perform the following checks:
1 Ensure the board has been firmly installed in the accessory board
slot (refer to chapter 3)
2 Ensure the board is not using memory, I/O addresses, an IRQ, or
DMA channel also being used by the PC. Refer to the board’s manual
for details.
3 Check that the PC has been configured correctly in Setup.
4 If the problem persists, contact the accessory board vendor.