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  1. #1
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    ROG STRIX Z370 E GAMING: Bios 0419 breaks XMP support for F4-4000C18Q-32GTZ RAM

    Hi,

    as the topic says my F4-400C18Q-32GTZ RAM was working fine with the XMP profile under the old firmware 0410.
    With the 0419 bios the system won't boot with XMP enabled(POST fails during RAM test). After I switched back to 0410 everything is working again
    I am using a 8700k without any OC.

    Is there any setting different between 0410 and 0419 which could lead to this or is the newest firmware bugged?

    Greetings!

  2. #2
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
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    Try tuning the SA and IO voltages. May have been some rule changes. You can check.

  3. #3
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    Quote Originally Posted by Raja@ASUS View Post
    Try tuning the SA and IO voltages. May have been some rule changes. You can check.
    Thanks for the super quick reply.

    Is there any changelog? it would be nice to know those changes to avoid confusion.

    Another things to point out: the ram was never stable at 4000mhz. Asus list the ram as compatible with 4000mhz but g.skill does not list the motherboard as compatible. just a side not that might interest people.

  4. #4
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    can you try, under dram timings/training algorythm/

    Enable Read time centering 2D

    Disable DIMM ODT training

    before saving and exiting

  5. #5
    ROG Guru: Yellow Belt Array Carbonicdk PC Specs
    Carbonicdk PC Specs
    MotherboardAsus ROG Strix Z370-E Gaming
    ProcessorIntel i7-8700k
    Memory (part number)F4-3600C16Q-32GTZR
    Graphics Card #1Asus ROG STRIX GTX1080TI O11G GAMING
    Sound CardSchiit Modi 2 Uber
    MonitorAsus MG278Q
    Storage #1Samsung 960Evo
    CaseFractal Design Define R6 - Tempered Glass
    Power SupplyCorsair Professional Platinum Series AX860
    OS Windows 10 64bit

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    There's the same issue with F4-3600c16q-32gtzr which I've yet to solve. Might be a more general issue.

  6. #6
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    After updating the Maximus X Hero from bios 0213 to 0505 I was now able to run the G.Skill f4-4000c18d-16gtzr kit at XMP speeds. So very likely both bioses have had changes affecting memory stability.

    Quote Originally Posted by Raja@ASUS View Post
    Try tuning the SA and IO voltages. May have been some rule changes. You can check.
    'You can check.' Is this not exactly why we expect changelists?

  7. #7
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
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    Quote Originally Posted by Crysto View Post



    'You can check.' Is this not exactly why we expect changelists?

    Seeing as there are no (or only limited) changelists...

  8. #8
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    Quote Originally Posted by Crysto View Post
    After updating the Maximus X Hero from bios 0213 to 0505 I was now able to run the G.Skill f4-4000c18d-16gtzr kit at XMP speeds. So very likely both bioses have had changes affecting memory stability.



    'You can check.' Is this not exactly why we expect changelists?
    I updated to 0505 and can no longer run my 3733mhz XMP profile. Seems a lot of people are having trouble running 3600+ with the new bios.

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