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  1. #1
    New ROGer Array
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    RAM not detected as dual channel on ASUS ROG CROSSHAIR VIII DARK HERO

    Hi,
    Building a ASUS ROG CROSSHAIR VIII DARK HERO + AMD Ryzen 9 5900X + HyperX FURY HX432C16FB3K4/128 ( 4 x 32 Go ) DDR4 3200MHz

    I am having problems with the RAM not being detected properly. CPUZ and bios tell me I have only 64GBytes on single channel.

    CPUZ memory tab displays :

    General:
    Type : DDR4
    Channel # Single
    Size : 64 Gbytes
    Uncore Frequency 1600 Mhz

    Timings :
    DRAM frequency 1601.3 Mhz
    FSBRAM 1:16
    CL : 22.0 clocks
    tRCD 22
    tRP 22
    tRAS 52
    tRC 74
    CR : IT

    What can I do to have the board operate in dual channel and detect the full 128GB at proper frequency.
    I figured this might have to do witht the ryzen and timings ... but me not being a hardcore tweaker I'm a bit lost ...

    Thanks for helping

  2. #2
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    Hi there,
    How about under BIOS? how many GB or how many RAM is detected? please share the screenshot with us
    and in task manager?
    Thank you.

  3. #3
    ROG Guru: Grand Master Array Arne Saknussemm PC Specs
    Arne Saknussemm PC Specs
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    Arne Saknussemm's Avatar
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    For that density of memory...

    Try 1.4v or even 1.45 v DRAM voltage and set SOC voltage to 1.125 to 1.2v range

  4. #4
    New ROGer Array
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    Hi,

    Are you using 64GB x 2 in your system?
    According to the manual, the mobo supports only 32GB DRAM stick. In order to get 128GB, you need to install 32GB x 4 on the mobo.

    If you are using 32GB x 4, then double check whether you have inserted the DRAM sticks into the socket securely.

    At this point, there is no need for you to tweak the voltage until your mobo recognize the correct DRAM capacity.

    Please check the manual of your mobo.

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