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Random Freezes


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#1 GoHard24

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Posted 20 July 2010 - 10:20 PM

I've been looking everywhere for somebody who can advise me with a solution to my problem and although this might not be the most appropriate place for this, hopefully somebody can help.

Specs: http://speccy.piriform.com/results/l1hEqku7uSFNIiqId5jAZog

I built my computer about 8 months ago. For the first 5 months it worked flawlessly but recently (April/May) it has been randomly freezing. Here are some details:
Happens most often while ANY browser is open.
Doesn't matter if the computer was just turned on or has been on for a day.
Is completely random. May occur twice in 5 mins and then not occur for another 30 mins.
Freeze occurs in two periods. First it freezes for about 20 seconds, then it unfreezes for about 5, and freezes again for 20 seconds or so.
I've tried uninstalling all kinds of software, reformatting, installing 64 bit of windows 7 etc and am starting to believe it's some kind of hardware failure.
I can move my mouse and sound usually works while the graphics are completely frozen.

More information can be provided. Can anybody PLEASE help me?

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#2 MrBruce1959

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Posted 21 July 2010 - 01:11 PM

Hello and welcome to Bleepingcomputer.

Usually when a computer starts freezing up for no apparent reason after months of normal use, it is a sign that dust has accumulated inside the computer and it found its way into the processors heat sink. This prevents the heat produced from the processor's core from being released into the heat sink and into the air.

Dust acts like insulation and holds the heat back from exiting the heat sink, to the point the core of the processor reaches an unstable, unsafe level.

With that being said, I suggest you open the computers case and inspect the cooling fans through out the case for dust. Pay close attention to the processor cooling fan and the heat sink below the cooling fan for dust embedded in the fins.

Check the video card for a heat sink or cooling fan and make sure there is no dust there as well.

If you see dust clogs or dust build up, you can get a can of compressed air sold in most places that sell computer supplies or parts.

You can use the compressed air to blow the dust out of the heat sinks and out of the computer case.

Please use caution when doing this procedure, that you do not blow motherboard jumpers off of their connectors, because the compressed air can release a lot of pressure when the valve is first pressed open.

Bruce.
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#3 norwood781

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Posted 21 July 2010 - 01:41 PM

Seconding MrBruce1959.

Be sure everything is cleaned out so that proper air flow can cool your system. It sounds like it's overheating and shutting itself down.

Also, are you doing any overclocking? If so, that will add to any extra heating going on.

It's odd that you can move the mouse around, though, if the problem is overheating. Usually everything stops.

Edited by norwood781, 21 July 2010 - 01:43 PM.





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