Large memory 8GB with 32bit Server 2008



    Who knows how to enable 8GB RAM in 32-bit Server 2008 Enterprise. There is no boot.ini for /PAE switch.


    best regards



    Wednesday, March 19, 2008 3:55 PM


All replies

  • Howdie!


     1a-archiv wrote:

    Who knows how to enable 8GB RAM in 32-bit Server 2008 Enterprise. There is no boot.ini for /PAE switch.


    You can't. Using more than 4GByte of RAM requires a 64bit machine with a 64bit version of Windows (or any other OS).





    Wednesday, March 19, 2008 6:11 PM
  • Windows Server 2008 Enterprise 32-bit supports up to 64GByte RAM, Windows 2003 Enterprise 32-bit up to 16GByte RAM.


    Best regards



    Wednesday, March 19, 2008 7:12 PM
  • I thought PAE was enabled by default in 2008.  Are you not seeing all the memory in perfmon?




    Wednesday, March 19, 2008 9:09 PM
  • Oops!  My mistake.  It defaults if you turn it on with bcdedit


    bcdedit /set {current} pae default




    Wednesday, March 19, 2008 9:12 PM
  • Hi


    I agree with 1a-archiv and Tim. Typically, Windows server 2008 Enterprise 32bit can support 64GB RAM.


    By the way, the boot.ini has been replaced with Boot Configuration Data (BCD). So you have to use "BCDEdit /set pae ForceEnable" command to set the pae boot entry option.


    For more details, please refer to:


    Physical Address Extension:


    BCDEdit /set:


    I hope this helps.



    Thursday, March 20, 2008 9:44 AM

    or you can use VISTABOOTPRO , check it here :






    Tarek Majdalani
    Computer Engineer, CIW, MCSA: Security 2000/2003, TS: Windows Vista
    MVP -- ISA Firewalls
    Website :


    Thursday, March 20, 2008 1:14 PM
  • I have Server 2008 Enterprise running on a 32-bit processor and cannot get the system to recognize more than 6GB of RAM.  If I put in 8GB, the system powers on to the BIOS (which recognizes the 8GB of RAM) and then restarts itself at the point where normally it would start to load the OS.  If I downgrade to 6GB of RAM, the system boots as normal.

    I have already tried enabling PAE using BCDEDIT.

    Any ideas?

    Wednesday, March 26, 2008 11:11 PM
  • This sounds that your RAM may be damaged.

    Did you enable RAM check in BIOS?

    Are all RAM Chips form the same vendor and type?

    Did you use Win2003 Enterprise before, where you got 8GB?


    With 6GB: What RAM size shows Computer Porperties window and what size Task Manager?


    Without PAE Option 8GB where shown in Computer properties but only 4GB in Task Manager. With PAE Option 8GB are available also in Task Manager.


    best regads



    Thursday, March 27, 2008 8:11 AM
  • Yes, the BIOS checks my RAM as part of the POST  Yes, all of the RAM chips are identical.  When I try 2GB x 4, Windows does not boot, but when I do 2GB x 2 and 1GB x 2, it works fine.  I have also tried the latter configuration with both pairs of 2GB modules and Windows boots fine to rule out a defective module.

    No, I only had 2GB while running 2k3 Ent.

    WIth 6GB, Computer Properties shows 6GB and task manager shows 5886MB


    Thursday, March 27, 2008 8:35 AM
  • Does your MainBoard support 8GB of this type RAM?


    best regards Klaus


    Thursday, March 27, 2008 9:00 AM
  • Yes, the BIOS shows 8GB of RAM.  The manufacturer's specification is also published as 8GB of RAM max.


    Thursday, March 27, 2008 1:35 PM

    Have you checked the ranking of the memory.  some servers only support a limited amount of RAM Ranks.


    I'd love to be able to explain to you about Ranknig but I'm no expert on it but there is somethign on it here:-



    We had a similar issue here where I work.  We tried to upgrade the ram and fill all the slots on a few servers (HP DL380's) but we exceeded the RANK limit for the motherboard so it's wouldn't boot.

    Friday, March 28, 2008 12:59 PM
  • Physical Address Extension (PAE) is a processor feature that enables x86 processors to access more than 4 GB of physical memory on capable versions of Windows. Certain 32-bit versions of Windows Server running on x86-based systems can use PAE to access up to 64 GB or 128 GB of physical memory, depending on the physical address size of the processor. 


    Thursday, July 07, 2011 12:48 PM