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Thread: what CPU Clock drive & PCIE CLOCK DRIVE value should be?




  1. #1
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    Default what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    i was wondering what values should i set this setting since the new bios came with the default 700mv in both of them.. but the previous bios default was 800mv for CPU Clock Drive and 900mv for the PCIE clock drive...

    what those value actually affect ? can they affect stability or performance ? (i don't refers to extreme situation when with extremely high or low value)



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    Default Re: what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    In simple words, they alter the pattern of the current traveling to the CPU and PCIE bus respectively. They are only really used for extreeme overclocks where high voltages dont provide a regular current to the CPU or PCIE.
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  3. #3
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    Default Re: what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    The new BIOS did not likely come with them like that, that is FAIL SAFE Settings.

    Please load optimized defaults and then save and apply F10 and reboot back to the BIOS to make any needed changes.

    They should be 800/900 respectively but do not just change them to that amount, you must load optimized defaults and apply after a BIOS flash to set hidden settings per your hardware

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    Default Re: what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    Quote Originally Posted by Lsdmeasap View Post
    The new BIOS did not likely come with them like that, that is FAIL SAFE Settings.

    Please load optimized defaults and then save and apply F10 and reboot back to the BIOS to make any needed changes.

    They should be 800/900 respectively but do not just change them to that amount, you must load optimized defaults and apply after a BIOS flash to set hidden settings per your hardware
    is it safe/wont subtract my performance if i leave them at 700 ? my computer at the moment running at OC to 3.8ghz 100% stale ... I'm afraid that if i do change those values it will damage my system stability.
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    Default Re: what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    Maybe? It could actually be subtracting from overal CPU performance by not supplying enough power.

    Just write down your settings and load and apply optimized defaults, save and reboot then input your settings again.

    Just changing those value no, would not make you unstable, but I do not advise you JUST Change them, you should load optimized defaults always after a new build or BIOS flash as there is many hidden settings that will not be set properly if you do not.

    If you are using RAID Please read this for tips on loading optimized defaults >>
    http://forums.tweaktown.com/f69/bios...h-guide-27576/

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    Default Re: what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    Quote Originally Posted by Lsdmeasap View Post
    you should load optimized defaults always after a new build or BIOS flash as there is many hidden settings that will not be set properly if you do not.
    ok ... i load optimized defaults and indeed those value changed to 800 and 900.... i overclocked the system according to what i copied ...hope it won't make my system unstable again .

    almost forgot to say thanks for the help !
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    Default Re: what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    so as i thought this minor change in values for the Cpu clock drive and the pci-e clock drive values made my system unstable ... it froze at night... no blue screen ,no log event, just a frozen screen...
    what should i do ? should i change back the values to 700 ?
    ==================
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  8. #8

    Default Re: what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    I have of course a different system here but have played with 700 a piece(I usually start low and then see what gives) and 800, 900 respectively as they appear in cmos.
    Little definitive so far.....but I am still checking.
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    Default Re: what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    Quote Originally Posted by nafroman View Post
    so as i thought this minor change in values for the Cpu clock drive and the pci-e clock drive values made my system unstable ... it froze at night... no blue screen ,no log event, just a frozen screen...
    what should i do ? should i change back the values to 700 ?
    Are you sure it's from changing the clock drive? Usually when I get a freeze where I can't do anything but it's not a blue screen, it's memory timings.

    Having said that though, mine is set to 700mv, 700mv as well in bios and im 24 hours prime stable with it...so I don't think it would hurt anything to change it back.

  10. #10
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    Default Re: what CPU Clock drive & PCIE CLOCK DRIVE value should be?

    Yes, you can change them back if you was stable with them before, now that you have loaded optimized defaults. I just wanted to be sure you loaded optimized so that other hidden settings would be properly applied

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