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Reliable PC suddenly starts freezing at random


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#1 cwhiz99

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Posted 26 December 2008 - 11:21 AM

I am in front a PC that is a few years old and has been running reliably but suddenly started freezing at random. The freeze is not Windows XP related as it also freezes if I start it with a live Linux CD.

Booting sometimes takes 6-7 hard resets and it can freeze at any time after login, completely at random. I am at loss as to how to locate the shady component. I have eliminated the hard disk as the system freezes even when started from CD with the hard disk physically disconnected from the system. I unfortunately do not have spare components to aid in diagnostics by elimination.

Any assistance is appreciated.

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#2 hamluis

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Posted 26 December 2008 - 11:48 AM

My first suspect would be overheating.

Cleaning the Interior of your PC - http://www.bleepingcomputer.com/tutorials/cleaning-the-inside-of-your-pc/

Louis

#3 cwhiz99

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Posted 26 December 2008 - 02:44 PM

Heat is not the problem. When it is first turned on and still cold to the touch and with the cover removed, it needs to be reset a minimum of 4 times (sometimes 6-7 times) before it completes the boot sequence and makes it to the Windows XP login prompt.

#4 hamluis

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Posted 26 December 2008 - 05:58 PM

Second guess: power supply.

How old is the power supply unit.

How To Test Your Computers Power Supply (PSU) - Video - http://www.metacafe.com/watch/729606/how_t...wer_supply_psu/

Is It My Power Supply - http://www.bleepingcomputer.com/forums/t/169618/is-it-my-power-supply/

Louis

#5 Johnny Boy

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Posted 28 December 2008 - 12:49 AM

I had the EXACT same problem...it was my powersupply....try(assuming you have one) a different power supply...if not it sounds like the EXACT same problem I had..and I think I can safely say that you should order a new PS from newegg.
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#6 cwhiz99

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Posted 03 January 2009 - 06:34 AM

I checked all the power supply voltages with the computer turned on, they are all within ratings.
Yellow is 12.45V,
Blue is -12.67V,
Red is 5.06V,
White is -5.37V,
Orange is 3.32V.

I am open to any suggestions.




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