1.    02 Aug 2016 #1
    Join Date : Feb 2016
    Letchworth, UK
    Posts : 44
    Windows 10 Pro x64 and Ubuntu 16.04 x64

    4gb RAM but only 3.47 gb usable

    Hi, I have an ASRock H61M-VG3 Mother board with a maximum RAM amount of 16gb. I have 64bit Windows 10 Pro. I have 4gb of RAM but only 3.47 gb Usable. Does anyone know how to help because I would like it fixed because I am upgrading to 16gb Ram, and it would be ridiculous to have 16gb of RAM but only 3.47gb Usable.

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      My System SpecsSystem Spec

  2.    02 Aug 2016 #2
    Join Date : Jul 2015
    Posts : 818
    Windows 10 Home

    This should answer your question:

      My System SpecsSystem Spec

  3.    02 Aug 2016 #3
    Join Date : Nov 2015
    Posts : 1,648
    64bit Win 10 Pro ver 1607 Build 14393.105

    Some of your memory may have been reserved for hardware. It is possible you have not disabled your on-board graphics and so memory is being used for that. Check your BIOS settings.
      My System SpecsSystem Spec

  4.    02 Aug 2016 #4
    Join Date : Mar 2015
    Posts : 1,022
    Windows 10 Pro x64

    It sounds perfectly normal to me. I don't know why you'd think you'd be limited to 3.47 GB if you upgraded to 16 GB, but that wouldn't be the case. Anytime you use something like onboard graphics, some memory is always reserved to be the frame buffer / graphics memory.

    My Latitude E7250 laptop with 16 GB of memory shows 15.9 available.
      My System SpecsSystem Spec


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