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Turn pc on, tick...tick..tick from PSU? what to do?

Discussion in 'Hardware' started by Megatron_lives, Nov 13, 2011.

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  1. Megatron_lives

    Megatron_lives Thread Starter

    Jul 24, 2011
    Hi all

    I was trying to install and new SATA card to my folks HP XW4600. Everthing fine then...the computer powered off!

    I turned it back on and all that happens is the fans spin a little, a crackle is heard from the speaker and a ticking sound (every ~4 secs) comes from the PSU. This continues untill I unplug the desktop.

    I've unplugged the fans from the PSU - no change. Unplugged the hard drives/dvd from PSU - no change.

    Only after unplugging the motherboard do I get a change; the DVD and hard drive are making the noises expected as the system boots and it sounds fine - obviously, as soon as I plug the motherboard back into the PSU - it dies!

    What I'd like to know is:

    1) is it the PSU? - I don't think so, must be the motherboard. If so..
    2) can I just buy a motherboard for a HP xw4600, replace it and see if that's the culprit? If so, I've never replaced a motherboard before. Are there obvious problems I should be aware of?
    3) Is it something else?

    thanks everyone, as always, any advice is good advice


  2. pip22


    Nov 21, 2004
    I dealt with a "ticking" PSU only last week on my son's PC. It co-incided with the PSU's fan playing stop-go, although the actual ticking came from the circuitry behind the fan. A visit to a PC parts shop and an hour later his PC was fine -- new PSU. I took the opportunity to fit a slightly more powerful PSU than the faulty one too.
  3. crjdriver

    crjdriver Moderator

    Jan 2, 2001
    I checked the specs on that system and it shows 4 sata ports on the board. Why exactly were you installing a sata controller card?
    It is not clear from your post however the system was completely unpowered when you installed the card correct ie it was not ON or plugged in.
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