Microsoft Windows Server 2008 and 2008 R2 Maximum Memory Limits

With Windows Server 2008 R2 being the first x64 only version of Microsoft’s popular server operating system the maximum memory configurations are much simpler to remember.  It will likely be a while yet before the x32 version of Windows Server 2008 is stopped being deployed fully in production environments meaning that you’ll have to keep tabs on how much memory each version and build type can take.

Although it being relatively straight forward to remember here’s a table outlining the maximum memory limits of the various editions and versions of Windows Server 2008.

 

VersionMaximum Memory Limit (x64 Only)
Windows Server 2008 R2 Datacenter

2TB

Windows Server 2008 R2 Enterprise2TB
Windows Server 2008 R2 for Itanium2TB
Windows Server 2008 R2 Foundation8GB
Windows Server 2008 R2 Standard32GB
Windows Web Server 2008 R232GB

Microsoft Windows Server 2008 R2 Maximum Memory Limits

VersionMax Memory Limit (x32)Max Memory Limit (x64)
Windows Server 2008 Datacenter64GB2TB
Windows Server 2008 Enterprise64GB2TB
Windows Server 2008 Standard4GB32GB
Windows Small Business Server 20084GB32GB
Windows Web Server 20084GB32GB

 

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