Windows Server 2008 Standard 64-bit only sees 4GB of ram, 8GB installed

Posted on 2008-11-07
Last Modified: 2012-05-05
Hi.  I have a fresh install of Windows Server 2008 Standard Edition 64-bit with 8GB of RAM installed.  The problem is that the OS only detects 4GB of it, whereas the BIOS will detect and show 8GB.  Any help with this is much appreciated, thanks.
Question by:irisbench
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    Expert Comment

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    Expert Comment

    Physical Memory Limits: Windows Server 2008
    The following table specifies the limits on physical memory for Windows Server 2008. Limits greater than 4 GB for 32-bit Windows assume that PAE is enabled in the boot.ini

    see the following link...

    second link explains how to modify the boot.ini

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    by:Darius Ghassem
    You should be able to view the 8 GB for the 64-bit verison for 2008. Are you sure you install 64-bit verison of 2008?

    You can try this command to view the whole 8GB but you should be able to see up to 32 GB

    1. BCDEdit /set nx AlwaysOff

    2. BCDEdit /set PAE forceenable

    3. Reboot

    Accepted Solution

    It turns out it had nothing at all to do with PAE.  There was an option in the BIOS to enable RAS for the RAM.  Once disabled, the full 8GB of RAM began to show up in the OS.
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    Glad you got it fixed thanks for posting the solution...

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