Posted 23 July 2010 - 03:17 PM
Hello and welcome to Bleepingcomputer.
System freezes can be a pain to troubleshoot, because once they happen, further diagnosis is impossible because nothing works, nothing moves, its just frozen.
One of the first suspects is hardware issues, the second is software or drivers.
Lets start with hardware and the first one to suspect is the CPU processor.
You said you built this system, so you should know the parts very well, you chose them.
When you installed the processor and placed the heat sink on top of the processor, did you add thermal grease to the top of the processor core before placing the heat sink on top of it?
Did you make sure the heat sink is properly placed securely on top of the processor and it is completely making full contact and it is level?
Has dust already accumulated in the heat sink fins? (You did not say how long ago you built this system)
Pixelation in the video is also possible if the CPU starts to over heat.
I realize you have an on-board (integrated) video processor, if your problem is related to this hardware, you should be able to update the drivers. Booting to safe mode via the F8 key at boot up can allow you access to the Internet to download the correct drivers, save them to your desktop screen and install them later in real mode, once you reboot.
Please recheck the CPU and post back your findings.
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