HP dx5150 manual Troubleshooting Without Diagnostics

			Troubleshooting Without Diagnostics
Solving Minor Problems (Continued)
Problem	Cause	Possible Solution
Poor performance is	Processor is hot.	1.	Ensure airflow to the computer is
experienced.			not blocked.
		2.	Ensure the fans are connected
			and working properly (some fans
			only operate when needed).
		3.	Ensure the processor heatsink 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	Restart the computer.
	accessed did not release
	reserved memory back to
	the system.
	Virus resident on the hard	Run virus protection program.
	drive.
	Too many applications	1.	Close unnecessary applications
	running.		to free up memory.
		2.	Add more memory.
	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.

Processor thermal protection activated:

A fan may be blocked or not turning.

OR

The heatsink is not properly attached to the processor.

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

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

3.Replace the processor fan.

4.Reseat processor heatsink and verify that the fan assembly is properly attached.

Service Reference Guide, dx5150 361685-001 D–3