Question about Dell Dimension 2350 PC Desktop

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Dell dimension 2350 keeps shutting down

My computer shuts down by itself when I turn the computer on. I tried to go to CMOS setup and waited to see if it will shut down to determine if it is microsoft issue, apparently it did shut down which means it is not microsoft problem. I opened the computer and checked the fan and it is working. I removed RAM slots and tried rebooting same problem. I noticed one of the brackets of the heat sink is broken but the heat sink is on top of the cpu with one bracket, I don't think this will cause the problem as far as I know. The only other issue I think could be the power supply or the cpu but it is costly buying those just assuming they could be the problem. I have some important data inside the computer which I want but can't reach them because no backup.
Is there anybody with a solution?
I appreciate your help

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Almost certainly the power supply; they have a dozen different ways to fail and mostly due to a 5 cent component that should have been a 7 cent part.
I highly recommend not replacing it with another (original) 200 watt supply; running a supply too close to its ratings causes it to work hard all the time.
The supply on eBay linked below is 480 watts which is overkill but it is the cheapest on the 'Buy it now' listing and comes to $21 with shipping-
Dell replacement PS
If you have never done this before and are apprehensive, take a few photos of plug placement in case you get confused.
Good luck-

Posted on Jul 18, 2010

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It is quite clear from your description that the issue is with the heat sink. Since the heat sink is not seated properly on the cpu, it is getting heated and thus causing the system to turn off. CPU is a very sensitive part of the computer, if it is gone bad you will not be able to see anything on the screen. You simply need to re-seat the heat sink properly and that would resolve your issue. You can trust me. If you can manage to replace the heat sink it would be great or else if you want to confirm what I said you can just try to remove the heat sink and try to do a temporary fix to one of the broken bracket.

Posted on Jul 17, 2010

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http://tinyurl.com/5bbrxc

Thanks
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Do remmber to rate the solution if it was helpful or fixed your problem.Thanks for using fixya

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