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Thread: Extreme6 cpu power connector issue




  1. #1
    terdferguson is offline Junior Member
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    Default Extreme6 cpu power connector issue

    Alright all here's the specs.

    Intel i3770k at 4200 mhz
    asrock extreme6
    no gpu yet
    8 gb corsair vengeance

    You'll notice I didn't list the power supplies...

    So the build started with a corsair hx750. PC would power off randomly. No blue screen, just off. It would take a few times pushing the power button to restart and I would often have to hit the power switch on the PSU itself a few times. PC would not wake from sleep, but would turn off instead.

    So, I was at the store the other day and I bought a new antec 550 cheapy thing to see if I could solve the problem. This psu had a cpu power cable that was two 4pin connectors that could fit together in one 8 pin slot. I tried the 8 pin first and nothing. Then on a whim I tried just on of the 4 pins and it worked. Sort of, had trouble after powering down. Couldn't replicate my results.

    Next I went and pulled the old no name psu out of my asus desktop. It only has a 4 pin connector. IT WORKS EVERY TIME.

    Could this be a mobo issue? Is it possible that half the cpu power connector is burned out? Both expensive psu's that have 8 pin connectors dont work at all, but one 4 pin works sometimes and the really cheap 4pin works all the time. What's going on?

  2. #2
    Join Date
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    Default Re: Extreme6 cpu power connector issue

    Remove it from the case and while outside the case and with it resting atop the motherboard box try and replicate this issue.
    #1 - Please, when seeking help, enter the make and model of ALL parts that your system is comprised of in your Signature, or at least the model #'s in your System Specs, then "Save' it.
    ____If you are overclocking, underclocking, or undervolting any parts, informing us of this and their values would prove beneficial in helping you.

    #2 - G.Skill RAM Configurator for your boardSamsung Memory for your boardLatest AMD Chipset Drivers/WindowsLatest AMD Graphics Drivers/WindowsLatest Intel Drivers

    #3 - Please use the eXtreme Outer Vision Power Supply Calculator found HERE to determine if it might be your PSU at issue.
    ____Consider your PSU to be the foundation from which all else is built upon. Anything built upon a weak foundation is poorly built.

  3. #3
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    Default Re: Extreme6 cpu power connector issue

    ... 4200??? On an unstable system???

    Have you tried clearing the CMOS?
    #1 - Please, when seeking help, enter the make and model of ALL parts that your system is comprised of in your Signature, or at least the model #'s in your System Specs, then "Save' it.
    ____If you are overclocking, underclocking, or undervolting any parts, informing us of this and their values would prove beneficial in helping you.

    #2 - G.Skill RAM Configurator for your boardSamsung Memory for your boardLatest AMD Chipset Drivers/WindowsLatest AMD Graphics Drivers/WindowsLatest Intel Drivers

    #3 - Please use the eXtreme Outer Vision Power Supply Calculator found HERE to determine if it might be your PSU at issue.
    ____Consider your PSU to be the foundation from which all else is built upon. Anything built upon a weak foundation is poorly built.

  4. #4
    parsec's Avatar
    parsec is offline Senior Member
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    Default Re: Extreme6 cpu power connector issue

    Is the HX750 a new PSU that you've never used before?

    Just to check, the 8 pin CPU power cable you're using is the hard wired, non-modular cable?

    A four pin CPU power connector should be connected to the four pins on the right side of the eight pin mother board connection.

    It does sound like there might be a problem with the eight pin connector on the board. Or specifically, the four pins on the left side of the eight pin connector. If you tried the four pin connector on the HX750 again and it worked, that could indicate a problem with the other four pins of that connector on the board.

    Trying the mother board outside of the PC case as wardog suggested would eliminate any grounding or shorting issues.

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