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I have:

Motherboard: DG35EC
Processor: Intel Dual Core E2180 , 2.00 GHz
Hard disk: 500 GB - ST3500418AS
RAM: 1 GB

For 2 weeks now, I am facing this strange issue. Whenever I run some heavy programs simultaneously computer suddenly turns off after some time. For example, before posting this question, I was running Opera with many tabs open and started installing huge software. While working in opera, I noticed that the system is getting heavy utilization due that installation. Before the installation completes, it turned off suddenly. I cannot just do a single task at a time, but after failing installation third time, I have a plan to run it after closing all other programs. .

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3 Answers

up vote 8 down vote accepted

It sounds like your CPU is overheating and shutting down automatically to avoid damage.

I would check the airflow in your computer's case - make sure that cables are not restricting it. Make sure that the CPU cooler is not clogged up with dust and make sure that it is properly seated on the CPU.

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These days weather temperature is near 19-29 degree centigrade. Also one side of computer case is open and i removed the front covers where CD/DVD rom is palced. Just to make sure that processor dont get heatup. –  LifeH2O Nov 9 '10 at 16:50
    
I used coretemp alcpu.com/CoreTemp and it says the temperature of cores about 45-59 degree while i am installing the software in background. How to keep it cool :( –  LifeH2O Nov 9 '10 at 16:57
    
It reached 63 :(, i was totally unaware of it. How to keep it damn cool, it started 2 weeks ago. Before that it was all fine. –  LifeH2O Nov 9 '10 at 16:58
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@LifeH2O: By taking the side panel off, you would most probably be making it worse, as the case is designed to have the air travel through it, from the front to the rear. The temperatures in my case go up when I take the side panel off. –  paradroid Nov 9 '10 at 17:03
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Removing covers and opening drive bays can make a CPU run hotter. This is because the manufacturer has gone through some trouble to craft the airflow into and out of the case to move the most amount of air possible over the CPU. If you disrupt the airflow pattern by opening new holes, the CPU can get less airflow even though there is more airflow overall. –  Chris Nava Nov 9 '10 at 19:04
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Sounds like a CPU overheating problem.

Running Prime 95 along with a CPU monitoring application, such as http://www.alcpu.com/CoreTemp/ will let you know if your CPU is the problem.

Prime 95 is a stress testing tool. It works by making your PC calculate Mersenne prime numbers.

Run Prime 95's Torture test while monitoring the CPU temperature, and see if it rises too high, until the PC eventually shuts off.

According to http://www.hardwaresecrets.com/article/143/5 the maximum temperature for your CPU is 73.2C.

pd: Prime 95 download links http://www.mersenneforum.org/showthread.php?t=2

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I used coretemp alcpu.com/CoreTemp and it says the temperature of cores about 45-59 degree while i am installing the software in background. and then it reached 65 and i blew some air with my mouth and came down to 53-56 for some time. How to keep this damn thing cool? –  LifeH2O Nov 9 '10 at 17:02
    
I ran this test and temperature reached 83 degree but i am still multitasking. –  LifeH2O Nov 9 '10 at 17:34
    
Then it seems the CPU is not the problem. Could be, as Amir pointed out, a faulty RAM module. –  molgar Nov 9 '10 at 17:45
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It can also be memory error. Run windows memory test at start up. Or use memtest86 ISO.

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it is available on CD, any other downloadable tool? –  LifeH2O Nov 9 '10 at 17:12
    
If you have cd for Windows 7 or Vista I'm sure that installation CD has a memory tool built-in. –  Amir Rezaei Nov 9 '10 at 17:16
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