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  1. #1
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    Question RAM not running in 2400MHz

    Hi all,

    I just built my own computer and all is good, however, the RAM isn't running at full speed. In the BIOS, it says the frequency of the RAM is 1666MHz instead of 2400MHz.

    The motherboard, ASUS H97-PLUS does indeed support it.

    I looked around and people are talking about timing, which I have no idea about.

    And help would be much appreciated.

    Andreas

  2. #2
    ROG Guru: Brown Belt Array NemesisChild PC Specs
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    Enable the XMP profile in your bios.

    If the memory doesn't have XMP, then you will need to manually enter the frequency (2400), base timings, and DRAM voltage.
    Intel i7 8700K@ 5.2GHz (Delidded)
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  4. #4
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    I just saw, it can run higher with XMP. I activated XMP, set frequency to 2400 and voltage to 1.65V but overclocking failed.

    EDIT: I just tried at 1600MHz and 1.65V and it works. Is it really the H97-PLUS limiting me here?
    Last edited by Andreas42; 03-16-2015 at 10:48 PM.

  5. #5
    ROG Guru: Brown Belt Array NemesisChild PC Specs
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    Quote Originally Posted by Chino View Post
    The maximum frequency supported on the H97 chipset is 1600MHz.
    The H97 manual clearly states that this is due to the chipset limitation.

    To manually configure your memory, go into Ai Tweaker menu:
    DRAM frequency: Set at 1600MHz, you can try 2400MHz but it will run at 1600 max.
    DRAM Timing Control: Set base timings (10-12-12)
    DRAM Voltage: Set at 1.65v
    Intel i7 8700K@ 5.2GHz (Delidded)
    ASUS Maximus X Hero (Bios 1801)
    NZXT Kraken X42
    G.Skill TridentZ@ 4000MHz CL16 2x8GB
    SLI: 2x Nvidia GTX 1070 Ti FE@ 2025/2025MHz
    OS: Samsung 970 PRO 512GB NVMe M.2
    Storage: Samsung 960 EVO 500GB NVMe M.2
    Storage: 2x Samsung 850 EVO 500GB
    Storage: WD Black 7200 RPM 64MB Cache 2TB
    EVGA SuperNova 1200 P2
    Cooler Master HAF 932 Advanced

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