PSU overvoltage?

Discussion in 'Technical Support' started by captainjon, Dec 10, 2010.

  1. captainjon

    captainjon

    Joined:
    Dec 10, 2010
    Messages:
    1
    Likes Received:
    0
    Hi,

    I've bought 2 PSU's from Ebay, one after the other as I cant get them to work on either
    of my 2 systems (ASRock Alivedual eSata2 and Gigabyte EP35 DS3R). The Power
    does not come on at all.

    Using a wire on the green (PS_ON) to GND, it turns on and I measured the voltages.

    Be Quiet bqt e5

    red 5.12 ok
    orange 3.52 not ok (+3.135 VDC to +3.465 VDC)
    yellow 12.36 ok
    blue -11.66 ok
    purp 5.16 ok (+5VSB)
    gr 5.13 ok (PWR_ON)

    LC 6550

    red 5.13 ok
    orange 3.37 ok
    yellow 12.03 ok
    blue -11.85 ok
    purp 4.5 not ok (+5VSB)(+4.750 VDC to +5.250 VDC)
    gray 5.13 ok (PWR_ON)

    You can see that there is a voltage on each slightly out of spec. Would this be enough for the
    motherboard to turn off PS_ON to the PSU, or is there another reason. Does the PSU need to be grounded
    via the case, as I have the PSU next to it on the floor? Maybe something else I missed?

    thanks,
    Jon

    - I am now aware second hand PSUs on Ebay is not a great idea.
     
    captainjon, Dec 10, 2010
    #1
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.