Possible PSU failure

Hey

I've rebuilt my PC fairly recently, just a month or two before Christmas and all has been well. No issues whatsoever.

Not all components have been upgraded, just CPU, MB and RAM, I intend to upgrade the GPU soon as well but that's another topic. HDDs are old as well but the OS has been reinstalled and both are SATA 2.

The current PSU I believe has failed is/was a 700W which was doing a fine job up until the other day when the whole PC just died. No warning, no software errors, just an immediate power-down mid game. Temperature inside the case was normal and the HDDs did not spin down. Was literally an immediate switch off like a powercut (although I have ruled that out myself). Now whenever I try the power button (all other peripherals unplugged) I get the briefest movements from a couple of the case fans and the CPU fan but no actual life. No spin ups on HDDs.

I have checked all cabling and plugs and all are in the correct place and secure, I have also checked that I was not running a PSU with too low wattage and it has 150W+ to spare.

I would rather not buy a new PSU unless I have to, so I want to ensure that this is definitely the problem.

Any help/advice appreciated.
6 answers Last reply
More about possible failure
  1. Quick psu test.
    http://www.youtube.com/watch?v=5FWXgQSokF4
    However everything you've mentioned certainly points to a dead psu.
  2. Thats a handy video, many thanks Davcon. Unfortunately my PSU didn't pass :(

    Just replicated the initial description, a weak half turn of the PSU fan and the connected case fan and then nothing. Looks like I'll have to bite the bullet and get a new one.
  3. Vitamin-D said:
    Thats a handy video, many thanks Davcon. Unfortunately my PSU didn't pass :(


    That's a good thing, now ya know what the problem is.....can feel relived knowing it's not more serious.

    Size it:

    http://www.antec.outervision.com/

    Pick It

    http://www.silentpcreview.com/Recommended_PSUs
    http://www.jonnyguru.com

    The great deals on PSU's of late have been the XFX Black and Core Editions:

    http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007657%2050001669&IsNodeId=1&name=XFX

    The Black's generally garner a 10.0 performance rating at jonnyguru.com and the core editions are getting 9.5's.

    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=165
    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=184
    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=216
    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=217
  4. ^+1 Excellent advice for the informed buyer.
    A great deal for a quality 750W unit on Newegg at the moment.
    Antec TruePower New TP-750 750W
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817371025
    http://www.hardwaresecrets.com/article/766
    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=140
  5. Cheers guys, I bought one yesterday before I read your replies. But fortunately it looks like I picked correctly anyway. Got the Antec TruePower New TP-750 750W. Should last me a good while and gives me the flexibility to upgrade to a crossfire'd system when I can afford it.

    Thanks for all your help chaps :)
  6. Vitamin-D said:
    Cheers guys, I bought one yesterday before I read your replies. But fortunately it looks like I picked correctly anyway. Got the Antec TruePower New TP-750 750W. Should last me a good while and gives me the flexibility to upgrade to a crossfire'd system when I can afford it.

    Thanks for all your help chaps :)

    Nice one lol! you chose well
    Enjoy! :)
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