4 GB limitation

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Tags:
Managing virtual environments
Microsoft Virtual Server
Virtualization
VMware
Hi. Will VMware Server or Microsoft Virtual Server 2005 R2 take any advantage of having more than 4 GB ram memory on a 32-bit system with Windows 2003 Enterprise Edition?
ASKED: September 18, 2006  7:22 PM
UPDATED: June 6, 2013  5:15 PM

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NO – The limitation in in the guest operating system, however Microsoft has increased the memory limit on versions greater than standard via service packs. This chart should help clear it up a bit.

The page I referenced even talks about Windows Server 2008 as well. It has the same limitation in standard edition 32bit. This is likely a combination of windows marketing and the fact that PAE is needed to support more than 4GB of memory using a 32bit processor.

This limit is greatly reduced by using a 64bit processor, runor has it that Windows 2008 is the last 32 bit version of windows. Only time will tell.

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  • Festienne
    Hi, The free version of VMWare "VMWare Server" support up to 3.6GB per VM (Virtual machine). The ESX version $$$ support up to 16GB per VMs Fred
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  • Nferreira
    With windows 2003 that suports more than 4gb on a 32 bit system with 12 gb real memory. Vmware server or virtual server 2005 r2 is able to apply 3,6 gb for each virtual guest?
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