Not all installed RAM being used by windows 10  


  1. Posts : 3
    Windows 10
       #1

    Not all installed RAM being used by windows 10


    I have 16GB of ram installed in my system, and only 8GB are being used by windows. The rest are "Hardware Reserved"? This seems to be a very common problem, but I haven't found a solution that works yet.

    Task Manager: Screenshot - d693e24eaa1ead0ad2337b74a4250b0d - Gyazo

    Windows Version: 1903
      My Computer


  2. Posts : 29,620
    10 Home x64 (22H2) (10 Pro on 2nd pc)
       #2

    Welcome to Ten Forums @Zynthic


    This is usually a problem with mismatched RAM (eg timing). Windows can see but not use all the installed RAM so it marks the unusable RAM as hardware reserved. It may also be a faulty RAM chip, but that's probably less likely.

    If you have two 8GB RAM sticks they must be a matched pair, preferably bought together so they are from the same batch. If that's what yours are, then they may be installed in the wrong slots. Check you motherboard manual for the correct positions to use.
      My Computers


  3. Posts : 920
    Windows 10 Pro
       #3

    Apart from RAM mis match or wrong slots used on motherboard (I myself use 4 DIMMs with non matching timings between the pairs without issue), are you using any form of disk caching application that marks off system RAM to improve disk performance? I would have thought any such app would dynamically allocate/ reserve RAM (the same as Windows does) but I could be mistaken.
      My Computer


  4. Posts : 3
    Windows 10
    Thread Starter
       #4

    Bree said:
    Welcome to Ten Forums @Zynthic


    This is usually a problem with mismatched RAM (eg timing). Windows can see but not use all the installed RAM so it marks the unusable RAM as hardware reserved. It may also be a faulty RAM chip, but that's probably less likely.

    If you have two 8GB RAM sticks they must be a matched pair, preferably bought together so they are from the same batch. If that's what yours are, then they may be installed in the wrong slots. Check you motherboard manual for the correct positions to use.
    I have a 2 DIM motherboard, and both ram sticks came from the same packaging. The motherboard, cpu and ram are all compatible. not sure the problem?
      My Computer


  5. Posts : 5,379
    Windows 11 Home
       #5

    Hardware Reserved 8.0GB - check in BIOS, if onboard GPU or GPU emblemed in CPU, do not take it.

    You can also try this. Run CMD as admin and copy/paste code, then restart.
    Code:
    bcdedit /deletevalue {current} removememory
    bcdedit /deletevalue {current} truncatememory
    bcdedit /deletevalue {default} removememory
    bcdedit /deletevalue {default} truncatememory
      My Computer


  6. Posts : 3
    Windows 10
    Thread Starter
       #6

    TairikuOkami said:
    Hardware Reserved 8.0GB - check in BIOS, if onboard GPU or GPU emblemed in CPU, do not take it.

    You can also try this. Run CMD as admin and copy/paste code, then restart.
    Code:
    bcdedit /deletevalue {current} removememory
    bcdedit /deletevalue {current} truncatememory
    bcdedit /deletevalue {default} removememory
    bcdedit /deletevalue {default} truncatememory
    This code came up with errors when entered?
      My Computer


  7. Posts : 40,858
    windows 10 professional version 1607 build 14393.969 64 bit
       #7

    1) Update the specs in the "My Computer" section:

    System Specs - Fill in at Ten Forums
    In the left corner below in your post you find 'My System Specs'.
    After clicking it you can find a link a little below that says 'Update your System Spec', click on this link to get to the page where you can fill in your system specs.
    System Info - See Your System Specs - Windows 7 Help Forums

    Include PSU. cooler, case, peripherals and anything attached to the computer by wired or wireless (mouse, keyboard, headset, printer, xbox, USB wireless network card, etc.)

    2) There are log collectors used in another forum room.
    Run each V2 and DM and upload results into this thread:
    BSOD - Posting Instructions

    3) Open task manager > performance tab > memory > post an image into the thread


    Take Screenshot in Windows 10

    How to Upload and Post Screenshots and Files at Ten Forums
      My Computer


 

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