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Thread: Z97X-UD5H, 8GB RAM was installed, but only 7.88 GB usable on Win7




  1. #1
    realslow is offline Junior Member
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    Default Z97X-UD5H, 8GB RAM was installed, but only 7.88 GB usable on Win7

    Hi, i have a question.

    Z97X-UD5H, 8GB RAM was installed, but only 7.88 GB usable on Win7

    of course, integrated graphics was disabled.

    like this.



    anyone have this problem?

    many users experience this problem, in my online community.

    + also, i think this board have compatibility issue. some users who using gtx 750, 280x and latest graphics cards, complain 'reboot' problem. they said visit local customer center, but can't solve this problem, just exchange new boards, but same problem happens.
    Last edited by realslow; 06-09-2014 at 06:10 PM.

  2. #2
    boondocks's Avatar
    boondocks is offline Senior Member
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    Default Re: Z97X-UD5H, 8GB RAM was installed, but only 7.88 GB usable on Win7

    Interesting. Mine has 16GB but shows only 15.9GB available. Never noticed before.....
    Maximus 8 Hero/6700K @ 4.8/4x4GB LPX @ 3200 15-17-17-36 CR1
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  3. #3
    stasio's Avatar
    stasio is offline GIGABYTE Elite
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    Default Re: Z97X-UD5H, 8GB RAM was installed, but only 7.88 GB usable on Win7

    Open Windows Task Manager and check in Performance and Processes.....
    Also Resource Monitor....Physical Memory....(Hardware Reserved 88 MB).


    Edit;
    I have finally found the setting of cancellation system built into the bios screen.
    Now I have a full 8GB.

    Thanks everyone for the help.
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    Attached Images Attached Images Z97X-UD5H, 8GB RAM was installed, but only 7.88 GB usable on Win7-09-06-2014_096-jpg 
    Last edited by stasio; 06-09-2014 at 10:48 PM.
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  4. #4
    realslow is offline Junior Member
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    Default Re: Z97X-UD5H, 8GB RAM was installed, but only 7.88 GB usable on Win7

    first of all, thanks for reply

    i said
    of course, integrated graphics was disabled.
    like this,


    F5 BIOS


    F7 BIOS


    Hardware reserved: 120MB


    but, when 16GB was installed. it shows 16.0GB fully.


    i think this problem was not always appear. (i'm not 100% sure)
    Last edited by realslow; 06-10-2014 at 01:03 AM.

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