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Thread: upgrading BIOS from F6 to F7 on ex58-UD4P




  1. #1
    Join Date
    Apr 2009
    Posts
    7

    Default upgrading BIOS from F6 to F7 on ex58-UD4P

    The upgrade lowered the values for clock drive for CPU and PCIe to 750mV from 900mV (I don't remember if it was 900 or 950). Was this done to fix something? Why would they lower a default value?

    I am seeing my previously stable OC failing.

    Does anybody know if 900mV for both of those values is unsafe? What exactly are these options anyway? What do others use or see in their BIOS for these?

  2. #2
    Join Date
    Mar 2009
    Posts
    45

    Default Re: upgrading BIOS from F6 to F7 on ex58-UD4P

    ok i looked at mine here is what i have for a board and the values of what you want to know.

    my board is a gigabyte ex58-UD5

    cpu clock drive=800mv
    pci express clock drive=900mv

    core i7 920

  3. #3
    Join Date
    Apr 2009
    Posts
    7

    Default Re: upgrading BIOS from F6 to F7 on ex58-UD4P

    Quote Originally Posted by killer454 View Post
    ok i looked at mine here is what i have for a board and the values of what you want to know.

    my board is a gigabyte ex58-UD5

    cpu clock drive=800mv
    pci express clock drive=900mv

    core i7 920
    So, the value for cpu clock drive is still less than 900mV. What's your BCLK?

    Do you know what does the clock drive option represent? Why would they lower it in newer BIOS?

  4. #4
    Join Date
    Mar 2009
    Posts
    45

    Default Re: upgrading BIOS from F6 to F7 on ex58-UD4P

    im running a 3.6 oc
    bclk=193
    ratio=19

    i have never messed with these mv settings,i have no idea what they are for.

    after reading your post decided to look back at my old bios settings and these mv settings stayed the same for all my bios updates.

    started with a F4then went to F5 and now im at F6 on my bios driver version.
    these mv settings never have changed on my system.

    I DO NOT KNOW WHAT THEY ARE FOR
    I WOULD DEFINITLY TALK TO GIGABYTE BEFORE CHANGING ANYTHING I DO NOT UNDERSTAND

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