Quick question about undervolting

Discussion in '2015+ Alienware 13 / 15 / 17' started by abdullah_mag, Feb 12, 2017.

  1. abdullah_mag

    abdullah_mag Notebook Evangelist

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    Do i undervolt just the cpu cores or also the cache by the same amount?

    also, which software to test the performance loss from undervolting?

    spec: AW 17 r3, 6700HQ
     
  2. abdullah_mag

    abdullah_mag Notebook Evangelist

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    something's weird going on with my UV.

    during benchmarks i get the normal 31x multiplier on my 4 cores, but during gaming it get between 27x and 28x only, no crashing or anything anywhere, and the UV amount doesn't matter.

    i tried -125mv, -100mv, and -50mv offset using throttlestop on cpu core and cpu cache, and tried with cpu cores only as well, and they all do this
     
  3. ThatOldGuy

    ThatOldGuy Notebook Deity

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    Use Intel XTU to undervolt. I don't think Throttlestop works with the AW's to undervolt.

    In gaming, the CPU will only clock to what it needs for that game
     
  4. abdullah_mag

    abdullah_mag Notebook Evangelist

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    Does XTU have an offset voltage like throttlestop or do i have to fine tune the voltages myself?

    edit: also, please take a look at my other thread, it has a better explanation of the situation http://forum.notebookreview.com/threads/throttlestop-not-working-right.801438/

    if any mods are around, please delete this thread.
     
  5. ThatOldGuy

    ThatOldGuy Notebook Deity

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    Its a slider that you can move in + or -.005v incriments. You can start about -0.100 v fine.
     
  6. Vassilis008

    Vassilis008 Notebook Consultant

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    Strange, I had no issues with throttlestop and undervolting :(
     
  7. abdullah_mag

    abdullah_mag Notebook Evangelist

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    i will try reinstalling throttlestop and give XTU a go, it's a super weird issue though.

    may i ask what model (laptop amd cpu) and BIOS you have?
     
  8. Vassilis008

    Vassilis008 Notebook Consultant

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    It's written in my signature :) Using bios 1.0.9.
     
  9. abdullah_mag

    abdullah_mag Notebook Evangelist

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    thanks for that previous tip man, i downloaded xtu today and ran -125mv UV fully stable and runs at max clocks as normal, off with throttlestop.
     
  10. cn555ic

    cn555ic Notebook Evangelist

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    So once you ubdervolt it, does it save the setting to the bios or does it require XTU to be run each time the computer boots up ?
     
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