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How can I set the voltage I want?

Discussion in 'MSI AfterBurner Overclock Application Discussion' started by Meccs, Jul 20, 2018.

  1. Meccs

    Meccs Active Member

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    GPU:
    Radeon RX 480 GAMING X 8G
    The voltage always snaps to one specific number when I press "apply".
    40 resets to 37, 46 to 43 etc

    How can I set the number I want?
     
  2. gedo

    gedo Master Guru

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    GPU:
    RX 570 4GB
    Sounds like the setting only has a 6.25 mV precision, which works out to 6 or 7 mV visible, depending on the value.

    Means even if you could set the value you wanted in software, it would just be the software lying to you, and the hardware still being set in 6.25 mV intervals.

    6.25 mV is 1/16 of 0.1 V. Means that the internal representation of 0.1 V in binary will be "10000" - a nice round number.

    If you had base 10 divisions, the larger values would have ugly representations - like if you had 1 mV divisions, 1 V would be 1000 in decimal, but "11 1110 1000" in binary.
     
  3. Meccs

    Meccs Active Member

    Messages:
    65
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    GPU:
    Radeon RX 480 GAMING X 8G
    But it appears that I can set the voltage I want in Wattman without issues.
     
  4. Unwinder

    Unwinder Moderator Staff Member

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    You cannot and you completely fail to understand the difference between target and real VID.
     

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