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Why does my computer screen freeze?

by susie henderson / November 26, 2011 1:57 AM PST

Computer is a generic PC desktop ACPIx86 Intel core2 cpu, 6300@1.86 ghz. 2gb ram, 32 bit Vista sp2. Windows experience 4.7. It is 5 years old.
Have had three technicians run diagnostics tests on my computer and reinstall graphics drivers, reinstall IE, reinstall Active X. None has stopped the freezing. It will either go black and reboot, or I will reboot it. I ran a stress test on the graphics card, Invidia Ge Force 8500T and it did not fail. The hard drive is new. The freezes occur when I have only one internet site open or if I have four or more. Does anyone know of something else that may cause this?

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All Answers

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And what is the machine doing when it freezes/reboots?
by R. Proffitt Forum moderator / November 26, 2011 2:10 AM PST

If it's playing a video from a web page, try the old FLASH DISABLE HARDWARE ACCELERATION (see google.)

But given only the clues so far, I hesitate to guess.

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Computer screen freezes, reboots
by susie henderson / December 3, 2011 5:35 AM PST

Sometimes just moving the cursor causes the screen to freeze. At times I may have more than one window open with graphics running in an advertisement. I reset the ram and my video card will not let me adjust the acceleration. A lot of the times when people in a podcast (on Citrix) say words at a lower tone, the sound stutters for a second or two then recovers and resumes. I do not have games running and the only things I do is watch the stock market with several charts open, but unless I am moving the cursor, the screen won't freeze. This happens maybe once to three times a day, depending how much I am on. At times, the cursor seeems to move a little jerky, but that is not when it freezes. Is there any more information you need? Thank you for your reply.

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Citrix? Vista? 2GB?
by R. Proffitt Forum moderator / December 3, 2011 5:37 AM PST

The more you write the more I'm thinking this machine has always behaved like this.

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Screen freezes
by susie henderson / December 3, 2011 8:39 AM PST
In reply to: Citrix? Vista? 2GB?

No, it has only been doing this since September this year and I have been trying to find out why every since. Even had a new hard drive put in per advice from Office Depot who said it was getting worn out, but of course that did not solve this problem.

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Still so little to work with.
by R. Proffitt Forum moderator / December 3, 2011 8:43 AM PST
In reply to: Screen freezes

Vista was never good to use at 2GB RAM. That's no reason for it to freeze but there are plenty of other causes such as the age has me writing about service life of the Electrolytic Capacitors and how at 5 years I would be tearing it down for it's billion electron service cycle. That is, open it up to clean and this time replace all the old heat sink compound too.

As I clean and button it up I look for any BAD CAPS as well as failed fans.

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