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Cant figure out what's making my computer freeze

Last response: in CPUs
February 13, 2010 11:44:02 AM

I need some help figuring out what is freezing my computer up. Whenever I load up something intensive in my cpu (usually opening apps in Facebook, copying a lot of files from a usb at the same time, or playing a graphics intensive game like borderlands in my 4 year old rig) my monitor will close and open up repeatedly sometimes showing the "signal not found" screen. My computer then stutters and locks and then I am forced to hard start it again.

I already replaced the old HDD and my old powersupply but I stil have this problem. I am suspecting my video card is bad, the motherboard is giving away or my cpu is crapping up.

Are there any ways to test this?

My specs are Pentium 4 2.6ghz, 7300gt ddr2
a c 172 à CPUs
February 13, 2010 3:18:37 PM

System specs - including the old and new parts?

February 13, 2010 9:06:32 PM

MOBO: asus p4v800-dx (3yr old mobo)
HDD: 60gb samsung (new) 40gb itachi (6yr old hdd)
Video card: inno3d 7300gt ddr2 (3yr old card)
PSU: Generic 550w(old- 1year) Generic 350w(new)
Core: Pentium 4 socket 468 2.6ghz (6year old)
Memory: 4pcs 512mb ddr400 Kingston ram (all 1 year old)

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a c 199 à CPUs
February 13, 2010 10:16:54 PM

CPU and GFX temps ?

Run memtest ? Run OCCT or any other torture tests ?
February 14, 2010 8:05:33 AM

Havent tried running torture tests and how can I check the cpu temp? i used cpuiz hdmonitor and my pentium 4 temps arent showing. Ill try running some. How would I determine which one of the parts are acting up?

I noticed that when running certain programs like warcarft 3, plant versus zombies, idling the computer and just plain browsing the net my pc doesnt freeze that immediately but when I open facebook or other sites like it and other games after a few secs or even immediately it starts to act up. It might give me a clue to whats the problem.
February 14, 2010 11:10:42 AM

Got my speedfan test back. it says

GPU:51 degrees Celsius
System: 35 degrees celsius
CPU: 41 degrees
Aux: 47 degrees
HD0: 31 degrees
Core: 50 degrees

doesnt seem like overheated to me. what do you think? will try torture testing next
June 27, 2011 9:53:03 PM

suggest you to double the backplate, if it is grounded the USB connector.
it sound very much like the USB port is grounded the backplate.