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  1. #21
    ROG Member Array
    Join Date
    Jan 2018

    Its interesting to see that on the original QVL for this motherboard it does verify that it supports 4 DIMMS in Dual Channel only:
    "• 4 DIMMs: Supports 4 modules inserted into both the blue and black slots as two pairs of Dual-channel memory configuration"

    I would be interested to know if anyone running 6/8 DIMMS has had any problems with Quad Channel as the same QVL suggests it DOES support 6/8 DIMMS in Quad Channel:
    "• 6 DIMMs: Supports six (6) modules inserted into A1, B1, B2, C1, D1 and D2 slots that operates in a Quad-channel memory configurations.
    • 8 DIMMs: Supports eight (8) modules inserted into all the slots as fully-loaded Quad-channel memory configurations."

  2. #22
    ROG Junior Member Array trawetSluaP PC Specs
    trawetSluaP PC Specs
    MotherboardASUS Maximus VII Formula
    Memory (part number)CML8GX3M2A1600C9
    Graphics Card #1ASUS GTX 980 Matrix Platinum
    MonitorASUS PB278QR
    Storage #1Samsung 840 EVO 250GB
    Storage #2Samsung 840 EVO 250GB
    CaseCorsair Obsidian Series 450D
    Power SupplyEVGA SuperNOVA 750 G2
    Keyboard Corsair K70
    OS Windows 8.1

    Join Date
    Mar 2014

    The last three or four BIOS revisions have meant when using for sticks of RAM in the quad channel slots (A1, B1, C1 and D1) my system refuses to post when I enable XMP.

    I wonder if this issue is the cause. I am gonna try using the four left hand DIMM slots when I get home with XMP to see if it resolves the issue.

    So strange. I've also been having weird complete system lock-ups which I thought might've been my GPU as they have been so intermittent but wonder if this issue is also the culprit!!!

    EDIT: Unfortunately this has not fixed the issue. I still get Memory Detect Error's when trying to use the latest BIOS. Back to 2002.

    Hopefully, at least moving the RAM sticks will prevent further lock-ups.
    Last edited by trawetSluaP; 10-07-2020 at 05:07 PM.

  3. #23
    ROG Member Array
    Join Date
    Feb 2017

    I also have random freezes with Asus Rampage VI Extreme (not Encore/Omega/etc) at latest BIOS (3701), Intel i9-10980XE, and a kit of 4 matched 32GB modules (G.SKILL F4-2666C19Q-128GVK RIPJAWS V). At times they occur in less than 1 hour after boot. I tried with increasing RAM voltages, VCCSA, VCCIO, manually lowering RAM frequency instead of XMP, moving the RAM modules around (all to the left, at A1B1C1D1, etc), nothing has worked so far. Checking with a memtest86+ iso gives errors after a while, at 96GB mark. I hate this motherboard.

    Would going for 8 RAM modules instead of 4 improve stability ?
    Last edited by giorg; 08-01-2022 at 11:19 AM.

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