Windows Memory Limit

IT

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.

Version Limit in 32-bit Windows Limit in 64-bit Windows
Windows Server 2008 Datacenter (full installation) 64 GB 2 TB
Windows Server 2008 Datacenter (Server Core installation) 64 GB 2 TB
Windows Server 2008 Enterprise 64 GB 2 TB
Windows Server 2008 HPC Edition Not applicable 128 GB
Windows Server 2008 Standard 4 GB 32 GB
Windows Server 2008 for Itanium-Based Systems Not applicable 2 TB
Windows Web Server 2008 4 GB 32 GB

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