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  1. #1
    New ROGer Array
    Join Date
    Oct 2017

    Max memory support Z370-H

    Does anyone have the H board?
    The documentation is all over the place in terms of Max memory speed.
    The box states 4000 but the booklet inside says 3866
    Even Asus site shows both numbers.

    Which one is actually true? If it's not 4000 I need to return this board.
    I can't test it myself until my CPU is delivered 4 days from now...

  2. #2
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
    Join Date
    Apr 2011

    Whatever it is, take at least two ratios off. The max supported speed is always conditional and optimistic. DDR4-3600 to DDR4-3733 is where I expect most four-slot boards to top out for the masses. Higher speeds require a good CPU, memory kit, and that the user is adept at tuning memory settings.

  3. #3
    ROG Guru: Black Belt Array Korth PC Specs
    Korth PC Specs
    MotherboardASUS X99 R5E (BIOS2101/1902)
    ProcessorHaswell-EP E5-1680-3 SR20H/R2 (4.4GHz)
    Memory (part number)Vengeance LPX 4x8GB SS DDR4-3000 (CMK32GX4M4C3000C15)
    Graphics Card #1NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Graphics Card #2NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Sound CardJDS Labs O2+ODAC (RevB), USB2 UAC1
    MonitorASUS PG278Q
    Storage #1Samsung 850 PRO 512GB SSDs, 4xSATA3 RAID0
    Storage #2Comay BladeDrive E28 3200GB SSD, 8xPCIe2
    CPU CoolerRaijintek NEMESIS/TISIS, AS5, 2xNH-A14
    CaseObsidian 750D (original), 6xNH-A14
    Power SupplyZalman/FSP ZM1250 Platinum
    Headset Pilot P51 PTT *modded*
    OS Arch, Gentoo, Win7x64, Win10x64
    Network RouterActiontec T3200M VDSL2 Gateway
    Accessory #1 TP-Link AC1900 Archer T9E, 1xPCIe
    Accessory #2 ASUS/Infineon SLB9635 TPM (TT1.2/FW3.19)
    Accessory #3 ASUS OC Panel I (FW0501)
    Korth's Avatar
    Join Date
    Mar 2015

    Most users purchase good memory kits; the motherboard spec advertises something like DDR4-4000 so they buy something like DDR4-4000.
    But yeah, a good CPU and properly tweaked memory configuration are required.

    A question about the QVL ...

    When, for instance, a particular 4x8GB DDR4-3600 kit is listed and "4 DIMMs" is specified, does that mean it was tested as 4x8GB DIMMs operating at rated XMP DDR4-3600 frequencies? Or just that all four DIMMs from that kit part/model can be recognized and addressed at natively-supported JEDEC SPD?
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