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Thread: Quad vs dual channel RAM

  1. #1
    Join Date
    Dec 2017
    Springfield, MA

    Unhappy Quad vs dual channel RAM

    I have a new build of:
    ASRock X299 Taichi MOBO
    8 sticks of 16Gb Corsair Dominator Platinum RAM
    Intel I7-7820 CPU
    Three 1TB SSDs

    I can't get the thing to run on quad channel. It recognizes all 8 DIMMs but is only using 4 of them.
    Is there a BIOS setting that has to be changed??

  2. #2
    profJim's Avatar
    profJim is offline Chief Munchkin + moderator
    Join Date
    Dec 2008
    Tacoma, WA. [USA]

    Default Re: Quad vs dual channel RAM

    Welcome to the forum.

    Corsair sells five different 8 x 16GB kits of their Dominator Platinum ram. You need to check to see if your particular kit is listed as compatible in ASRocks QVL memory list or if Corsair has tested your memory kit with your motherboard.

    ASRock has the following notes at
    ASRock > X299 Taichi

    Note1: Quad Channel: V = supports 4 modules and 8 modules
    Note2: 4PCS = tested successfully with 4 modules
    Note3: The O.C. mode is not guaranteed. It depends on whole system configuration and other parameters.
    Note4: For system stability, use more efficient memory cooling system to support a full memory load (8 DIMMs) when overclocking.
    Note5: Only SkyLake-X support quad channel, KabyLake-X support dual channel.
    Note6: Please instal A1 / B1 / C1 /D1 first instead of A2 / B2 /C2 / D2

    The XE version of your motherboard's memory QVL is on a different web page.

    The Corsair web page for the 8 x 16GB kits is at|
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S

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