Windows 10: Windows 10 Home - What is the maximum RAM it will address?

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  1. Posts : 5
    Windows XP, 7, 10
       04 Jun 2015 #1

    Windows 10 Home - What is the maximum RAM it will address?


    Hi there!

    I have a couple of systems running Windows 7 Home Premium and I can't go past 16 GB of RAM.
    What will the deal be with Windows 10 Home?

    Thanks!
      My ComputerSystem Spec


  2. Posts : 8,733
    Windows 10 Pro X64
       04 Jun 2015 #2

    Welcome to the forums. Here is a ram chart for W7 and W8. Still looking for Windows 10 but I think it will be similar to the W8

    https://msdn.microsoft.com/en-us/lib...mits_windows_8

    Click image for larger version. 

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ID:	20707
      My ComputerSystem Spec


  3. Posts : 5
    Windows XP, 7, 10
    Thread Starter
       04 Jun 2015 #3

    @Dude,

    I can't find the Windows 10 information either, but this will work.

    Cheers!
      My ComputerSystem Spec


  4. Posts : 8,733
    Windows 10 Pro X64
       04 Jun 2015 #4
      My ComputerSystem Spec

  5.    02 Oct 2015 #5

    so I just upgraded to windows 10 pro thinking it would solve my memory limitations from win7, I have 16 GB's installed but it says I have only 2.98 usable memory, I am using a 32 bit oz on a x64 machine, the graph I copied from the memory management section of the microsoft windoes dev center, I have looked in the Users manual for my main board which is a Gigabyte GA-990FCA-UD3 and can't find any info regarding memory unlock, so I figured it was the software since it does register 16 gigs but not letting me use it, so if there is an unlock in the software I do not know about since this is the first time ever using win10 pro

    Physical Memory Limits: Windows 10

    The following table specifies the limits on physical memory for Windows 10.
    Version Limit on X86 Limit on X64
    Windows 10 Enterprise 4 GB 2TB
    Windows 10 Education 4 GB 2TB
    Windows 10 Pro 4 GB 2TB
    Windows 10 Home 4 GB 128GB
      My ComputerSystem Spec

  6.    02 Oct 2015 #6

    Pleadium said: View Post
    I have 16 GB's installed but it says I have only 2.98 usable memory, I am using a 32 bit oz on a x64 machine
    You would need to clean install 64 bit to use all your RAM. For 32bit 4GB is the maximum and a certain amount of this is allocated to devices so what you are seeing is normal for 32 bit.
      My ComputerSystem Spec

  7.    02 Oct 2015 #7

    halasz said: View Post
    You would need to clean install 64 bit to use all your RAM. For 32bit 4GB is the maximum and a certain amount of this is allocated to devices so what you are seeing is normal for 32 bit.
    . . .A 32 bit OS is like using a 32 bit system it will use only 3.2 gigs of memory. . .
      My ComputerSystem Spec

  8.    02 Oct 2015 #8

    Windows 32-bit will only be able to use a theoretical maximum of 4GB or RAM, regardless of what the motherboard can handle. You need to install a 64-bit version of Windows to access more of that memory.
    Also some of the memory will be used in other things, such as on-board graphics, etc. That is why you don't see even the 4GB.
      My ComputerSystem Spec


  9. Posts : 4,333
    Win 10 Pro x64
       02 Oct 2015 #9

    Compumind said: View Post
    Hi there!

    I have a couple of systems running Windows 7 Home Premium and I can't go past 16 GB of RAM.
    What will the deal be with Windows 10 Home?

    Thanks!
    Basically, if your system is 32-bit, you can only install 32-bit OS which can only address 4GB max of RAM.
    It has nothing to do with Windows version ( Win 7 vs Win 10). It depends on the type of system you have (32-bit or 64-bit).
      My ComputerSystem Spec

  10.    02 Oct 2015 #10

    badrobot said: View Post
    It has nothing to do with Windows version ( Win 7 vs Win 10). It depends on the type of system you have (32-bit or 64-bit).
    Not correct. Look at @Dude post #2. For x64 Windows 7 Home premium has maximum RAM of 16GB.

    Windows 10 Home has a maximum for x64 of 128GB so it clearly does make a difference (Win 7 vs Win 10).

    The OP had a problem going over 16GB on 7 - not anything to do with 32/64 bit installs - that was someone else jumping in
      My ComputerSystem Spec


 
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