16 GB RAM - 15.7 GB usable 4GB RAM 2.7 GB usable ???


  1. jimbo45
    Posts : 5,941
    Linux CENTOS 7 / various Windows OS'es and servers
       New #1

    16 GB RAM - 15.7 GB usable 4GB RAM 2.7 GB usable ???


    Hi there
    What gives

    I uppped the memory of an ASUS Motherboard to 16 GB - no extra video card or whatever from 4GB --running W7 X-64 Enterprise version (approx equiv to W7 Ultimate). 4GB memory chips are CHEEEEEEEAP currently so why not upgrade !!.

    I now get in the properties Usable memory 15.7GB (installed memory 16 GB). Fine by me.

    When I had 4 GB installed the memory status showed 4GB of which 2.7GB was usable.

    Why the difference in usable memory -- the BIOS or internal video hasn't changed.

    Cheers
    jimbo
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  3. pparks1
    Posts : 7,878
    Windows 7 Ultimate x64
       New #2

    I would go into Task Manager, than Resource Monitor, then the memory tab and see what's up. I wouldn't expect you would see the difference.

    jimbo45 said:
    4GB memory chips are CHEEEEEEEAP currently so why not upgrade !!.
    Since you asked the question.
    #1). Because you likely won't need it, and performance won't change. Unless you run concurrent virtual machines with large amounts of RAM.
    #2). Filling up RAM slots can make things like overclocking more of a challenge.
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