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Computer screen freezing and then restart freezing

Last response: in CPUs
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June 21, 2013 3:50:33 PM

Hi
My Pc ha been freezing recently. The fans start fluctuating, and then everything hangs, and then the pc boots. but when it boots, it doesnt boot back to windows, it just hangs in boot.
I noticed this happening when Im watching full hd movies, editing photos or playing games for too long.
At first I thought it was my graphics cards failing, so i changed it to a higher model(from nvidia 9400gt to gt430). I also changed the power supply from 300v to 450v.
That didnt solve it, so I thought it was my ram- i have 4gb ddr2. so i removed one ram card, and tested it only on 2gb. it worked slow, but fine, then I bought a new ram to replace the so called bad ram, and the same thing happened again. Im getting really worried, as i showed it to a pc guy and he couldnt find any problems.

My specs are:
Windows 8 pro
Intel core 2 duo E7500 @ 2.93ghz
4gb ddr2
64 bit
1 gb Geforce GT 430
Creative 5.1 sound card
32 inch samsung tv for screen via hdmi
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June 22, 2013 12:29:05 AM

clean the computer (dust), and what is the temperature of your room, and how hot is your computer running.
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June 22, 2013 12:50:43 AM

HillBillyAsian said:
clean the computer (dust), and what is the temperature of your room, and how hot is your computer running.


I cleaned it before. And my room tempersture is between 21-26 celsius. Its always airconditioned.
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June 22, 2013 12:54:15 AM

so how hot is your comptuer running at idle, and when youve been playing a cpu intesive game for 10 minutes?
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