There is no sound or sound volume is too low.

Cause

Solution

 

 

 

System volume may be set low or muted.

1.

Check the F10 BIOS settings to make sure the internal

 

 

system speaker is not muted (this setting does not

 

 

affect the external speakers).

 

2.

Make sure the external speakers are properly

 

 

connected and powered on and that the speakers'

 

 

volume control is set correctly.

 

3.

Use the system volume control available in the

 

 

operating system to make sure the speakers are not

 

 

muted or to increase the volume.

 

 

 

Cannot remove computer cover or access panel.

Cause

Solution

Smart Cover Lock, featured on some computers, is locked.

Unlock the Smart Cover Lock using Computer Setup.

The Smart Cover FailSafe Key, a device for manually disabling the Smart Cover Lock, is available from HP. You will need the FailSafe Key in case of forgotten password, power loss, or computer malfunction. Order PN 166527-001 for the wrench-style key or PN 166527-002 for the screwdriver bit key.

Poor performance is experienced.

Cause

Solution

 

 

Processor is hot.

1. Make sure airflow to the computer is not blocked. Leave

 

 

a 10.2-cm (4-inch) clearance on all vented sides of the

 

 

computer and above the monitor to permit the required

 

 

airflow.

 

2.

Make sure fans are connected and working properly

 

 

(some fans only operate when needed).

 

3.

Make sure the processor heat sink is installed properly.

 

 

Hard drive is full.

Transfer data from the hard drive to create more space on

 

the hard drive.

 

 

Low on memory.

Add more memory.

 

 

Hard drive fragmented.

Defragment hard drive.

 

 

Program previously accessed did not release reserved

Restart the computer.

memory back to the system.

 

 

 

 

Virus resident on the hard drive.

Run virus protection program.

 

 

 

252 Chapter 10 Troubleshooting Without Diagnostics