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How can I tell if my processor is failing or my motherboard?


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#1 DerBear89

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Posted 17 November 2010 - 01:07 PM

My desktop was recently diagnosed with a bad psu and apparently it fried either my motherboard or my processor, is there a way I can tell which? If so this would save me some trouble with Intel and the whole retuning and exchanging policy.

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#2 the_patriot11

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Posted 17 November 2010 - 02:10 PM

Easiest way to find out is to swap out the motherboard with a known working one, though in my experience-CPUs rarely fry, and if they do, the motherboard normally fries with it. Chances are your looking at only a fried motherboard, or both. Its possible the boards good and the CPUs bad, but not likely.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#3 Webbfoot

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Posted 17 November 2010 - 04:02 PM

A good sign on the motherboard are the capacitors. Normally they are flat with X or + shape on the top. If they are flexing out, much like a overly shaken can of soda it's a bad sign. If they are oozing or look as though they oozed, it's an even worse sign.

I would expect a motherboard to go before the processor, but I don't have evidence for that.

#4 Baltboy

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Posted 17 November 2010 - 05:58 PM

I have seen motherboards where the capacitors have literally exploded because of a PSU failure and the CPU was completely okay. But as Patriot said there is no way to know for sure unless you put it in another motherboard
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#5 the_patriot11

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Posted 17 November 2010 - 06:07 PM

well, to make a short revision, sometimes, actually oftentimes if the failure is due to electrical overvoltage there are often burn marks especially around the power hookups. You can remove the board and do a visual inspection-look for burn marks, bulging/leaking capacitors, broken wires, etc on the motherboard. Just keep in mind lack of physical damage does not mean the board is not bad.

picard5.jpg

 

Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

If I don't reply within 24 hours of your reply, feel free to send me a pm.





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