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Thread: 3770K seems to be Locked at 39?




  1. #1
    Ken429 is offline Senior Member
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    Default 3770K seems to be Locked at 39?

    I upgraded the BIOS on my GA-Z77X-UD5H MB to F15o and now when I get around to playing with OC'ing the 3770K on the new BIOS the CPU is stuck at 39 no matter what I put in CPU clock ratio! Is there a problem with 15o or is it me?! I had the system running stable at 45 on BIOS Version F14?! I tried resetting to the Optimized Defaults but that had no effect. I know I did the CMOS reset routine when I installed F15o. The system has been running for months on the new BIOS with no apparent issues - except the "locked CPU" issue I just stumbled into. Any suggestions would be appreciated.

  2. #2
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    Default Re: 3770K seems to be Locked at 39?

    have you tried reflashing with the same bios? the z77 bios chips seem to be very temperamental in holding/saving the settings
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    Ken429 is offline Senior Member
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    Default Re: 3770K seems to be Locked at 39?

    No, I did not try reflashing but I did a clear CMOS and that had no effect. I switched to the backup BIOS (F7) and had the same problem - the CPU is "locked" at 35/39. So it ain't the F15o BIOS. Reflashing F15o would not effect the backup BIOS?

    In desperation I installed ET6 and hit the Quick Boost to Level 1. That worked but when I went into the BIOS to manually adjust the CPU multiplier it had no effect. In fact, loading the Optimized Defaults would not make the ET6 Quick Boost Level 1 settings go away - I had to do a clear CMOS and reload the Optimized Defaults to get back to default settings. We've had multiple power outages in the last week and I am beginning to wonder if it screwed up the system even though I had it connected to a UPS which should have protected it. I have several other computers in the house and they seem to be ok.

    Totally confused!

  4. #4
    Ken429 is offline Senior Member
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    Default Re: 3770K seems to be Locked at 39?

    Flashed F14 to the Backup BIOS, cleared CMOS and loaded Optimized Defaults - same result - CPU is locked at 35/39. Changing the CPU Clock Ratio to 42 has no effect even though is shows in the Advanced BIOS display and the Graphical BIOS display as 42. The word is not getting to the CPU!?

  5. #5
    Ken429 is offline Senior Member
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    Default Re: 3770K seems to be Locked at 39?

    BIOS screen shots - it appears like the system is not updating the Profile 1 settings as well at the CPU multiplier.
    Attached Images Attached Images 3770K seems to be Locked at 39?-advanced-jpg 

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    Ken429 is offline Senior Member
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    Default Re: 3770K seems to be Locked at 39?

    And then the Status Display.
    Attached Images Attached Images 3770K seems to be Locked at 39?-status-jpg 

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    Default Re: 3770K seems to be Locked at 39?

    I see this from time to time....but usually reflashing the bios works for me.
    There has been a rare time when flashing both bios to the same version has helped.

    Not really sure what is up with the later beta bios.....after months of running F15r I suddenly had no output from my video cards until I cleared CMOS. It seems to be possibly be related to Gen III video card settings in the bios......I finally went back to F14 final for now. Strange stuff, it is.
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    Default Re: 3770K seems to be Locked at 39?

    try setting the turbo ratio the same as the cpu multi
    Gigabyte z77x UP4-TH F11c Modded Bios
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  9. #9
    Tyler.Bernath's Avatar
    Tyler.Bernath is offline TweakTown Consumer Storage Editor
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    Default Re: 3770K seems to be Locked at 39?

    I was going to say something similar to wazza. Since I see you are using the cpu clock ratio to overclock,have you disabled turbo in advanced frequency settings?

  10. #10
    Ken429 is offline Senior Member
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    Default Re: 3770K seems to be Locked at 39?

    Thanks for the suggestion - I think! I turned off Turbo Boost in F15o and it had no effect. I turn Turbo Boost off in F14 (backup BIOS) and it seemed to have no effect. I rebooted into F14 and all is well - it changed the multiplier and picked up the Profile 1 settings for the memory. Strange things going on since I know I was running stable several months ago at 45 and Turbo Boost was set to AUTO on F14.

    Just in case, yes I tried rebooting in F15o and it was still wrong.
    Last edited by Ken429; 04-22-2013 at 10:41 PM.

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