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Poll: Have you had success exiting f22b BIOS above real 43x CPU clock speed?

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Thread: CPU clock and uncore ratio limited to 43x, despite higher settings in BIOS




  1. #1
    Laughmore is online now Junior Member
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    Question CPU clock and uncore ratio limited to 43x, despite higher settings in BIOS

    Z170MX-Gaming 5 rev 1.0, i5-6600k, f22f bios

    Ever since updating the bios from f20 to f22f yesterday, the CPU and uncore are capped at 43x. I have been running 45x cpu and 44x uncore for the last few years on the old BIOS, and something with the f22f seems to overwrite these settings.

    The problem remains the same if I use the new "CPU Upgrade" option in BIOS and set it to the highest available: "i5 6600k 4.4." After I save and exit BIOS, the CPU and uncore both run at 43x.

    How do I force the motherboard to respect settings above 43x I've selected in (f22f) BIOS?
    Last edited by Laughmore; 04-08-2020 at 11:12 AM. Reason: typo

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