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Need help! Strange error at boot, only when I haven't previously killed power.

I'm having some strange problems and wanted to see what you guys thought.

First of all, here's my part list:



Here's my problem:

I boot to windows, everything works fine. I shutdown my computer, and a bit later
I try to turn it on. I hear 3 beeps (memory error for my board). Computer turns off,
then turns itself back on to try again. I hear 3 beeps again. This repeats over and over.
I kill the power to my PSU, and I turn it back on. Everything works fine.

Here's what I know:

My RAM passes memtest. Both sticks, one stick by itself, and the other stick by itself.

This problem is present with both of the sticks, one of the sticks, but not the other.
(Oh, there must be a problem with that one stick!!!)

I bought some new RAM and tried it with both sticks, and the problem is still here.
(What?!?)

I used a PSU tester on my PSU, and the voltages were all correct according to the tester.

Does this sound like a broken motherboard? Do I need to do more intensive PSU testing?
Are both sets of RAM coincidentally broken? Is it (gasp!) my CPU?

Thanks in advance for taking a look at this.
11 answers Last reply Best Answer
More about strange error boot previously killed power
  1. Could be a bad ram slot on the board.
  2. SR-71 Blackbird said:
    Could be a bad ram slot on the board.


    Would you say I should go ahead and try out a new motherboard, or should I keep looking for smaller things that may have gone wrong? (I don't want to replace my mobo and then find out that it wasn't actually the problem)
  3. I would trouble shoot a little more but it could be the board since you tried the new modules already.
  4. SR-71 Blackbird said:
    Could be a bad ram slot on the board.


    Would you say I should go ahead and try out a new motherboard, or should I keep looking for smaller things that may have gone wrong? (I don't want to replace my mobo and then find out that it wasn't actually the problem)
  5. If your PSU is fine I'd say it's a board defect.
  6. SR-71 Blackbird said:
    I would trouble shoot a little more but it could be the board since you tried the new modules already.


    Oops, didn't mean to respond to your post twice...anyways, what else would you suggest doing before replacing the board?
  7. Best answer
    If the PSU IS 100% fine , the board is probably the culprit since you had the same issues with the new ram.
  8. SR-71 Blackbird said:
    If the PSU IS 100% fine , the board is probably the culprit since you had the same issues with the new ram.


    Okay cool.

    Here's the PSU tester I used. http://www.amazon.com/gp/product/B00IJNKF4Q/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

    Is there any more I can do to thoroughly test my PSU to the point where I know it's working?
  9. Not really , I think it's the board because of your ram testing issues.
  10. SR-71 Blackbird said:
    Not really , I think it's the board because of your ram testing issues.


    Okay thanks so much! I'll be installing a new MOBO this week I suppose, hopefully it goes well.
  11. could it just be a warning of the fan speed of your cpu cooler. My cpu gives a three beep error when it detects my noctuas are running below 300 rpm but I set it to continue booting anyway.

    Play with that it bit in bios/uefi to see if that isn't the culprit before you buy a new mobo!
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