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Thread: GA-EX58-UD5 - Set CPU Clock Drive = 900mv?

  1. #11
    Join Date
    Feb 2011
    Davis, CA

    Default Re: GA-EX58-UD5 - Set CPU Clock Drive = 900mv?

    Thanks so much for the replies.

    But how would you account for the fact that the processor will not overclock at all now?

    I suppose it could be the MB or SSD.

    By the way, the CPU did pass the Intel Processor Diagnostic tool. Pretty cool to find a processor diagnostic utility provided by Intel, although i wonder how good it is given that it only takes about 6 minutes to run the test.

    I will definitely run more memory tests. But I've used the sticks for a year without issue, and they were run well within their specs and kept relatively cool all the time. Do memory sticks just go bad suddenly like that?

    As to whether I was abusing my processor, I kept all voltages at stock or just a tiny bit above, and had it water cooled. The only think I kept high was the differential amplitude at 900MV. That was all I needed to get a 4.0 + MhZ overclock! And I dialed it back to 3.6 Mhz. A possible issue was the radiator was clogged one time and temps may have gotten into the mid 70s during that time; they were that high under prime 95 at least. However, my normal highest load (gaming) is typically 10 degrees below Prime95 temps, so I'm guessing the top temp was about 70. But the issues started months after that episode.

    BTW, I ran chkdik again and now it finds no errors on my SSD.

    Also, my system is not showing any more signs of problems, but now I'm running my i7 930 at 2.5 GhZ, and I'm scared to go back even to stock speed.

  2. #12
    Join Date
    Aug 2009
    Birmingham,Great Britain

    Default Re: GA-EX58-UD5 - Set CPU Clock Drive = 900mv?

    Are you using f12 bios? You have to tweak voltages slightly with each bios versions,sometimes fully clearing the cmos and loading optimized defaults helps
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  3. #13
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    PCB Island

    Default Re: GA-EX58-UD5 - Set CPU Clock Drive = 900mv?

    Yes, memory sticks can go bad at anytime.

    And anytime you update the BIOS you'll need to use different settings than before, so unless you are on that first BIOS you used you can't really expect things to be exactly the same.

    None of your volts or temps sound like they could even come close to damaging anything, so I think your CPU is just fine.

    As mentioned above clearing the CMOS can help too, sometimes a BIOS will get partially corrupted but still work, so you may just need to do that and try again.

    If you do be sure you start with optimized after you reboot, and be sure you set your SATA settings again before trying to load windows.

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