Memory usage 3.4 instead of 4

Discussion in 'PC Hardware' started by usermydigitallyfe, Oct 31, 2019.

  1. usermydigitallyfe

    usermydigitallyfe MDL Member

    Oct 30, 2016
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    Why the system shows Memory usage 3.4 GB instead of 4 GB ?
     
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  2. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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    Mainly because of x86 limitations by MSFT.

    Some amount of RAM can also be preserved for onboard GPU.
     
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  3. usermydigitallyfe

    usermydigitallyfe MDL Member

    Oct 30, 2016
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    but using 64 -bit OP. system, x64 based processor

    then what is the problem ?

    I want to use full 4 GB RAM !!!
     
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  4. Enthousiast

    Enthousiast MDL Tester

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    Then the onboard GPU probably took the missing amount of ram, check the bios settings.
     
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  5. usermydigitallyfe

    usermydigitallyfe MDL Member

    Oct 30, 2016
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    just a lay man ... don't know how to check BIOS settings....

    How to get step - by- step process to increase Memory usage from 3.4 GB to 4 GB.

    I think I am able to put my problem here fully understandable to all !
     
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  6. usermydigitallyfe

    usermydigitallyfe MDL Member

    Oct 30, 2016
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    But if I have installed separate GPU of 2 GB, then what took away missing amount of RAM?
     
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  7. usermydigitallyfe

    usermydigitallyfe MDL Member

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  8. usermydigitallyfe

    usermydigitallyfe MDL Member

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  9. Windows_Addict

    Windows_Addict MDL Senior Member

    Jul 19, 2018
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    Hardware Reserved memory is set by the motherboard and can't / shouldn't be changed. Don't bother trying to increase usable ram.

    *Hardware Reserved memory can be more or less depending upon the motherboard.
     
  10. John Sutherland

    John Sutherland MDL Addicted

    Oct 15, 2014
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    Open the Resource Monitor, click the "Memory" tab, and you will see the light. :Lighten:
     
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  11. Enthousiast

    Enthousiast MDL Tester

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    I've never seen 500MB disappear without it being reserved for GPU or other onboard hardware, on x64 OS.

    @usermydigitallyfe, can you show us the system info page?

    And run the QT from here and post the saved report here in code tags?
     
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  12. Michaela Joy

    Michaela Joy MDL Crazy Lady

    Jul 26, 2012
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    @usermydigitallyfe: The answer, although quite complex, is simple.

    That little bit of RAM is simply not available to the OS. (Actually, it's not available to -any- OS)

    The processor (also known as the CPU) needs a little bit of RAM, so that it can function
    separately from whatever OS is being loaded by the system.

    The CPU starts up first by running a boot loader in the BIOS. The boot loader checks to see what OS you're trying to run. it then runs another routine in the BIOS, and does a disk load, based on which media is valid (CD/DVD,floppy, HDD, etc.)

    When the OS starts up, it only has the remainder of the RAM to use.

    That's pretty much true for -any- OS.

    So, it's a hardware thing... :)
     
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  13. Enthousiast

    Enthousiast MDL Tester

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    #15 Enthousiast, Nov 1, 2019
    Last edited: Nov 1, 2019
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  14. usermydigitallyfe

    usermydigitallyfe MDL Member

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  15. Enthousiast

    Enthousiast MDL Tester

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    #17 Enthousiast, Nov 1, 2019
    Last edited: Nov 1, 2019
    Could you please run the QT and post the saved report here in code tags? It doesn't contain privacy sensitive info.

    I still guess it's used for GPU shared memory.

    As @Michaela Joy explained, the "missing" amount of RAM is used by at least something to get your system to work, it's only not available for the running OS.
     
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  16. usermydigitallyfe

    usermydigitallyfe MDL Member

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    OK. hardware reserved memory can't be changed since it's set by MB.
     
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