This Exchange server is running with Physical Address Extensions enabled and the /3GB Startup Switch

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at]  

Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool queries the Win32_OperatingSystem Microsoft Windows® Management Instrumentation (WMI) class to determine the value for the PAEEnabled key. The value of this key indicates whether Physical Address Extension (PAE) is enabled. A value of True indicates that PAE is enabled, and a value of False indicates that PAE is not enabled. The Exchange Server Analyzer also queries the Win32_OperatingSystem WMI class to determine the value for the MaxProcessMemorySize key.

If the Exchange Server Analyzer finds the value of PAEEnabled equal to True and the value for MaxProcessMemorySize to be greater than 2097024, a warning is displayed. This warning indicates that these values are not the default values. The Exchange Server Analyzer reports this configuration for informational purposes only. No action is required.

For more information about PAE, see the following Microsoft Knowledge Base articles:


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