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Computer Freeze, Screen Turns Black For Few Seconds Before Returning To Normal


The past few days my computer would freeze and then the screen would turn black for a few seconds before returning to normal. This happened whil surfing the web. I noticed that the desktop had a couple red and white and green pixel boxes that would appear after this happened. I reformatted my hard drive and reinstalled windows xp. Got the computer running and the video seemed fine. I then installed my nvidia driver for my video card, and once i did that i started to see even more pixels and fonts became slightly distorted. My computer would then freeze worse that before, and it would not return to normal use. I had to uninstall the video card drivers for the time being. Do i need a new video card or could it possibly be a motherboard issue?

Edit: i downloaded xp service pack 2. And now my computer freezes like it did originally. I never installed the nvidia drivers from the cd. I'm not sure if it was included with service pack 2. But i have noticed some distortion of text. The problem is not as bad as when i had installed the drivers liek i mentioned above.


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Last friday the computer stopped working correctly. On start up it boots normally which it goes past the bios screen and can even enter the bios utility as would any normal working computer would do. Though this is the catch. Once the computer past the normal bios and begins to enter to the hard drive to boot from windows. The screen goes black, i think it freezes there, though i'm not sure because my friend only told me this stuff over the phone. These are some things that i told him to try over the phone. One make sure you test each ram (512mbx2) test each ram stick by itself. Make sure that you have only one in at a time, and alternate from each ram stick you have. So that you can test the memory because it might be damaged. After doing all that work. Testing the memory didn't do anything the computer still crashed with 512mb or 1024mb it didn't matter what it had, it still crashed. So i'm asking what you guys might think about this problem, and if you have any suggestions at all.computer specifications:

Intel core 2 duo 1. 86ghz
Asus ai series motherboard
512mbx2 (1024mb)
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So my computer more or less randomly turns on during the day or night. Sometimes when i get home from school it is on (nobody uses it, and the screen is like it should be when it first turns on)

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