HP dx7300 manual Run Windows XP or Start Accessories Run, Cause Solution

Table 2-1Solving General Problems (continued)

Poor performance is experienced.

Cause	Solution
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 >
		Run (Windows XP) or Start > Accessories > Run
		(Windows Vista) and type msconfig. On the Startup tab
		of the System Configuration Utility, uncheck 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 or
on the graphics subsystem		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.

Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing).

Cause Solution

Processor thermal protection activated:

A fan may be blocked or not turning.

OR

The heatsink is not properly attached to the processor.

1.Ensure that the computer air vents are not blocked and the processor cooling fan is running.

2.Open hood, press power button, and see if the processor fan spins. If the processor fan is not spinning, make sure the fan's cable is plugged onto the system board header.

3.If fan is plugged in, but is not spinning, then replace the heatsink/fan assembly.

4.Contact an authorized reseller or service provider.

System does not power on and the LEDs on the front of the computer are not flashing.

Cause Solution

System unable to power on.

Press and hold the power button for less than 4 seconds. If the hard drive LED turns green, then:

1.Check that the voltage selector, located on the rear of the power supply on some models, is set to the appropriate voltage. Proper voltage setting depends on your region.

2.Remove the expansion cards one at a time until the 5V_aux light on the system board turns on.

3.Replace the system board.

12 Chapter 2 Troubleshooting Without Diagnostics ENWW