HP D3K72UT D3K72UT#ABA manual There is no sound or sound volume is too low Cause Solution

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.
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.
Too many applications running.	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 > All
		Programs > Accessories > Run and type msconfig.
		On the Startup tab of the System Configuration Utility,
		clear applications that you do not want to launch
		automatically.
Some software applications, especially games, are stressful	1.	Lower the display resolution for the current application
on the graphics subsystem		or consult the documentation that came with the
		application for suggestions on how to improve
		performance by adjusting parameters in the application.
	2.	Add more memory.
	3.	Upgrade the graphics solution.
Cause unknown.	Restart the computer.

Solving General Problems 145