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  1. #1
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    Undervolt 11900KF

    I have a Maximus Xiii Hero and want to undervolt for lower temps.
    Is it possible?

  2. #2
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    Hey there,

    Undervolting without underclocking will lead to instabilities.
    You may be able to do it a little bit, it's generally recommended though to underclock too.

    In general for overclocking/underclocking you have 3 options.

    1. Manual Core Voltage + Sync All Cores

    All cores will be synced to your preffered ratio (lower ratio for underclock).
    All cores will run at your fixed/static core voltage. (lower voltage for undervolt)
    Example: All-Core 42x @ 1.15v (static voltage)


    2. Auto Core Voltage + Sync All Cores

    All cores will be synced to your preffered ratio (lower ratio for underclock).
    All cores will run on a automatically controlled voltage. (lower voltage for undervolt)
    Example: All-Core 42x @ 0.60 - 1.15v (dynamic voltage)


    3. Auto Core Voltage + By Core Usage

    All cores will be synced to the ratio specified by the core-usage, chosen by you. (lower ratio for underclock).
    That means that the ratios will change basen on how many core are used.
    All cores will run on a automatically controlled voltage. (lower voltage for undervolt)
    Example: 45x-45x-44x-44x-43x-43x-42x-42x @ 0.60 - 1.15v (dynamic voltage)

    ** (values and voltages are just an example, they are not valid) **

    When Auto Core Voltage is chosen, you can also use the V/F Curve to further offset the automatic voltage using Point Offsets.
    My exaplanation is not the best, you may want to check this amazing video below, and use it as a reference for underclocking / undervolting instead of overclocking.

    Video: https://www.youtube.com/watch?v=uNVPBH0bgQU
    Last edited by EncodeGR; 04-05-2021 at 02:24 PM.

  3. #3
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    Quote Originally Posted by berglake View Post
    I have a Maximus Xiii Hero and want to undervolt for lower temps.
    Is it possible?
    the most direct way is to enter v/f point offset menu,
    start with -0.05v for the high frequency points vfpt8/7/6/5

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