Lost Power, now PC won't boot. Powers on and clicks.

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  1. Posts : 161
    Windows 10
    Thread Starter

    Yep. Correct. It clicks every few seconds. Like maybe every 3 seconds. Its a mellow click.
      My Computer

  2. bobkn's Avatar
    Posts : 4,221
    Win 11 Pro 22000.282


    At the least, I suggest disconnecting the PSU, shorting pins 15 and 16 (see link) so that you can turn on the PSU without having it connected to a motherboard. If you get the clicks with the PSU live (but disconnected from a system), that would suggest that it has a problem.

    I've never used one of those inexpensive PSU testers (Newegg has a number of them, starting at around $12US), but I suppose it might be worth trying.
      My Computers

  3. Posts : 13
    Win 10

    Remove the cmos battery for 30 secs then have another try.
      My Computer

  4. Posts : 258
    Windows 10 Pro

    unplug the HDD and see if it posts after, if not then the hdd isnt the issue. worth ruling out piece by piece. with the hdd not connected it should post and say os not found or similar.
      My Computer

  5. Posts : 161
    Windows 10
    Thread Starter

    I had tried both of those steps. Neither worked. I have a replacement power supply on order. Should be here on Monday. Thanks for the suggestions.
      My Computer

  6. Steve C's Avatar
    Posts : 7,016
    Windows 10 Pro 64 bit

    Please confirm you have done these checks:

    1. Confirm PSU turn on works - Google "PSU paperclip test"
    2. Remove the GPU card and use the internal GPU - I've just had a PC fail to boot due to a bust GPU
    3. Remove the BIOS battery for a minute, install a new one and select Load BIOS Defaults

    You could also try booting from KYHI's repair disk on the forum and use this to check your disk health.
      My Computers

  7. jds63's Avatar
    Posts : 3,264
    Windows 11 Pro 64 bit Version 21H2

    musiclover7 said:
    I had tried both of those steps. Neither worked. I have a replacement power supply on order. Should be here on Monday. Thanks for the suggestions.
    Hope for sure it is the Power Supply without testing it and the checking the Graphics Card.
      My Computer

  8. lehnerus2000's Avatar
    Posts : 1,809
    W7 Ultimate SP1 (64 bit), LM 19.2 MATE (64 bit), W10 Home 1703 (64 bit), W10 Pro 1703 (64 bit) VM

    Can you get into the BIOS/UEFI screen?

    If yes:
    Does it show that your all of your drives are present?
    Do the motherboard voltages appear to be correct?
      My Computer

  9. Posts : 161
    Windows 10
    Thread Starter

    I cannot get to bios, as the machine does not post. No beeps, no output to screen. It just turns on and does this:

    Clicking noise on startup. - YouTube

    Unfortunately, replacing the power supply did not help, which means I have another problem.

    This system does have onboard video, but even bypassing the external video card and resetting CMOS, I am still not booting. Unless I am wrong, this means I either have a dead board or maybe a dead CPU??
      My Computer

  10. Posts : 161
    Windows 10
    Thread Starter

    I should mention. It makes that same noise even with all drives disconnected from power and the motherboard.
      My Computer


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