1. You are viewing our forum as a guest. For full access please Register. WindowsBBS.com is completely free, paid for by advertisers and donations.

anyway to test a psu?

Discussion in 'PC Hardware' started by gone4pepsi, 2009/02/12.

  1. 2009/02/12
    gone4pepsi

    gone4pepsi Inactive Thread Starter

    Joined:
    2009/02/11
    Messages:
    42
    Likes Received:
    0
    Is there any ay to bench test a psu. I tried connecting a fan motor, but , even though the psu light was on, the motor didn't respond. All help greatly appreciated.
    thanks
    mark
     
    gone4pepsi,
    #1
  2. 2009/02/12
    Steve R Jones

    Steve R Jones SuperGeek Staff

    Joined:
    2001/12/30
    Messages:
    12,317
    Likes Received:
    252
    Steve R Jones,
    #2


  3. to hide this advert.

  4. 2009/02/12
    gone4pepsi

    gone4pepsi Inactive Thread Starter

    Joined:
    2009/02/11
    Messages:
    42
    Likes Received:
    0
    I've powered it up without the motherboard, nothing changes. I removed the power supply from the case and tried to power up a small fan, it didn't happen.I was told long ago that there needs to be a draw on a power supply, maybe a load resistor, with the psu unattached to anything.


    Anyways the lights come on, but nobody's home. Should i be able to read a voltage somewhere?
    Does anyone have any more to add to this?
    thank you
    Mark
     
    gone4pepsi,
    #3
  5. 2009/02/12
    PeteC

    PeteC SuperGeek Staff

    Joined:
    2002/05/10
    Messages:
    28,896
    Likes Received:
    389
    Google for PSU tester - plenty of hits.
     
    PeteC,
    #4
  6. 2009/02/12
    sparrow

    sparrow Inactive

    Joined:
    2004/03/21
    Messages:
    2,282
    Likes Received:
    0
    What I've done is. using a working PC, disconnect the internal supply and attach the supply to be tested, attaching it to the mobo and one drive, and the video card if required. It can be outside the case. If the pc boots, the supply is good. Have not yet done any damage to the test pc, but would only use a spare with the same mobo connector sockets.
     
    sparrow,
    #5
  7. 2009/02/12
    gone4pepsi

    gone4pepsi Inactive Thread Starter

    Joined:
    2009/02/11
    Messages:
    42
    Likes Received:
    0
    I tried another psu on this one. I really don't have another desktop that i can try this power supply on, besides the one i use here in the house. i really don't want to take it apart and down to the shop.

    My big question is, what could the water have ruined, if the pc was not under power?
    Thanks
    Mark
     
    gone4pepsi,
    #6
  8. 2009/02/13
    Steve R Jones

    Steve R Jones SuperGeek Staff

    Joined:
    2001/12/30
    Messages:
    12,317
    Likes Received:
    252
    As mentioned in your other thread...You won't know what is bad till you repalce parts one at a time...The pc might have been off at the time when it got wet...pressing the power button changed that...
     
    Steve R Jones,
    #7
  9. 2009/02/13
    PeteC

    PeteC SuperGeek Staff

    Joined:
    2002/05/10
    Messages:
    28,896
    Likes Received:
    389
    Water and electronics do not mix - you said that water poured out of the base of the case, so it was wet, not slightly damp :).

    Have you been through the procedure I suggested in your other thread - remove all cards and connectons one by one and dry thoroughly. It would not harm to remove the mobo too and check that the underside is not shorted or still wet. Careful use of hot air from a hair dryer would help.

    As Steve has said it's going to be a process of elimination. If you have access to another desktop you can check out the hard drive and other plug in cards on that.
     
    PeteC,
    #8
  10. 2009/02/13
    wildfire

    wildfire Getting Old

    Joined:
    2008/04/21
    Messages:
    4,649
    Likes Received:
    124
    Although not assisting in this thread, can I point out for others looking in.

    It is never a good idea to test a dodgy PSU on an otherwise working system, you could cause added damage to that system.
     
    wildfire,
    #9

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...