HP Compaq 6005 Pro Maintenance And Service Manual page 107

There is no sound or sound volume is too low.
Cause
System volume may be set low or muted.
The audio device may be connected to the wrong jack on the
rear of the computer.
Poor performance is experienced.
Cause
Processor is hot.
Hard drive is full.
Low on memory.
Hard drive fragmented.
Program previously accessed did not release reserved
memory back to the system.
Virus resident on the hard drive.
Too many applications running.
Solution
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.
Ensure that the device is connected to the correct jack on the
rear of the computer.
Solution
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 heatsink is installed properly.
Transfer data from the hard drive to create more space on
the hard drive.
Add more memory.
Defragment hard drive.
Restart the computer.
Run virus protection program.
1. Close unnecessary applications to free up memory.
2. Add more memory. Some applications run in the
background and can be closed by right-clicking on their
corresponding icons in the task tray. To prevent these
applications from launching at startup, go to Start >
Run (Windows XP) or Start > Accessories > Run
(Windows Vista and Windows 7) and type msconfig.
On the Startup tab of the System Configuration Utility,
clear applications that you do not want to launch
automatically.
Solving General Problems
97