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  • #1

    Stability / boot loop issue with tight loadline calibration settings

    TL;DR:
    Boot loop/instability with "extreme/turbo/high" Vcore loadline calibration when both CPU(OC'd)+GPU burn-in eventhough CPU (OC'd) and GPU stable on their own. Needs a cold boot (PSU OFF) to come back to normal.

    Does it seem like some voltage regulators might be defective (should I RMA the board) ?


    Click image for larger version Name: ss.png Views: 1 Size: 29.7 KB ID: 756038
    Last edited by tehownt; 06-07-2012, 12:35 PM. Reason: tl;dr
    Tags: None
  • #2
    Re: Stability / boot loop issue with tight loadline calibration settings

    What is the model name of your mobo and CPU RAM etc

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    • #3
      Re: Stability / boot loop issue with tight loadline calibration settings

      There is allready a new bios for thr UD5H , try with that one and see if there are any more issues

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      • #4
        Re: Stability / boot loop issue with tight loadline calibration settings

        http://forums.tweaktown.com/gigabyte...beta-bios.html often has beta bios versions that are not on the Gigabyte website.

        http://forums.tweaktown.com/gigabyte...ity-tools.html is an excellent resource.

        There are other stickies at the top of each web page in the Gigabyte forum.

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        • #5
          Re: Stability / boot loop issue with tight loadline calibration settings

          Originally posted by Hyper530 View Post
          What is the model name of your mobo and CPU RAM etc
          Sorry I didn't include them in the article since they are present in the "dropdown menu" just under my nick...

          I will try the new BIOS hoping that it helps but so far none from F6 to the F8d did any real difference. What helped a bit was : 101mhz core speed, loadline calib to "high" max, vcore protection to the same setting...

          It's a pain since instead of having the real voltage all the time I have to take vdroop into account and run at 1.24 -> 1.20 under load but it can last a longer GPU+CPU burn-in time.

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          • #6
            Re: Stability / boot loop issue with tight loadline calibration settings

            Have you tried using offsets (DVID) for overclocking? Vdroop isn't a bad thing, and the LLC will make up the extra voltage when needed.
            But it could be your problem isn't related to your OC at all. Or could be you're just not providing enough vcore. Not every cpu is going to do 4.5 at 1.2v, mine for sure won't (stable).
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            • #7
              Re: Stability / boot loop issue with tight loadline calibration settings

              Originally posted by boondocks View Post
              Have you tried using offsets (DVID) for overclocking? Vdroop isn't a bad thing, and the LLC will make up the extra voltage when needed.
              But it could be your problem isn't related to your OC at all. Or could be you're just not providing enough vcore. Not every cpu is going to do 4.5 at 1.2v, mine for sure won't (stable).
              I'll look into DVID for OC but as I mentionned, the CPU was incredibly stable on its own using "extreme" vcore loadline calibration at 1.19v/4.5ghz (I ran prime95 for hours) it's really only when I shoot a GPU bench at the same time that it crashes... (The GPU isn't OC'd and runs Furmark w/o issue for hours).

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              • #8
                Re: Stability / boot loop issue with tight loadline calibration settings

                +1 on Vcore

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