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  1. #1
    ROG Guru: White Belt Array
    Join Date
    Jan 2017

    Help stabilize 9900KS overclock - water cooled!

    Hey guys,

    I finalized my first custom water cooled pc and are very happy with my results. Still, I have some questions in terms of dialing in the right bios settings.

    I run the following setup:

    // PC
    i9 9900KS @5.2 GHz
    Gigabyte Z390 Aorus Master
    64 RAM 3200 CL14
    GTX 1080
    1000 Watt PSU

    // COOLING
    2 x 360 radiator
    EK Pump
    EK CPU cooler
    Heatkiller GPU cooler

    I run the current bios settings:
    CPU clock = 5.2 Ghz
    Memory set to XMP
    Loadline calibration = turbo (level 6)
    Enhanced multi core performance = disabled
    Uncore ratio = 47
    C states = all disabled
    CPU vcore current protection = extreme
    Pmw phase control = extrem perf
    Power limits are not limited
    Rest voltages are set to auto

    In terms of vcore and maybe related settings I have questions. I started off with a vcore of 1.290. I played around 1.290 and 1.310.
    I tried Cinebench R20 and R15 a couple of runs. AIDA 64 as well and Prime95. All seem to work even with 1.290 vcore at the beginning. The longer the pc was running the more I run into crashes. My temps are absolutely fine. In between 80-85 on prime95.

    So my question: is it normal that the vcore of 1.290 is not enough over time? Does it need a higher vcore over time? Do I have to keep raising the vcore? What additional bios setting would help stabilize the overclock apart from the vcore?

    Memory is not overclocked and GPU got 200 MHz and 100 clock overclock though.

    Thanks a lot for your help,

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