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

    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.    04 Jun 2015 #2
    Join Date : Oct 2013
    Texas
    Posts : 11,029
    Windows 10 Pro X64

    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. 

Name:	Ram Chart.PNG 
Views:	103 
Size:	89.8 KB 
ID:	20707
      My ComputerSystem Spec
  3.    04 Jun 2015 #3
    Join Date : Jun 2015
    USA
    Posts : 5
    Windows XP, 7, 10
    Thread Starter

    @Dude,

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

    Cheers!
      My ComputerSystem Spec
  4.    04 Jun 2015 #4
    Join Date : Oct 2013
    Texas
    Posts : 11,029
    Windows 10 Pro X64
      My ComputerSystem Spec
  5.    02 Oct 2015 #5
    Join Date : Oct 2015
    Posts : 3
    Windows 10 pro

    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
    Join Date : Jul 2015
    Posts : 3,822
    10 Pro

    Quote Originally Posted by Pleadium 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
    Join Date : Nov 2013
    Idaho USA
    Posts : 4,826
    OS X, Win 10

    Quote Originally Posted by halasz 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
    Join Date : Jun 2015
    Ottawa, Canada
    Posts : 193
    Windows 10 Pro

    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.    02 Oct 2015 #9
    Join Date : Nov 2013
    Toronto
    Posts : 4,661
    Win 10 Pro x64

    Quote Originally Posted by Compumind 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
    Join Date : Jul 2015
    Posts : 3,822
    10 Pro

    Quote Originally Posted by badrobot 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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