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Updating a Windows Server 2008 installation with Service Pack 2 does not update the default power policy

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Rapid publishing

Source: Microsoft Support

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Symptom

RAPID PUBLISHING ARTICLES PROVIDE INFORMATION DIRECTLY FROM WITHIN THE MICROSOFT SUPPORT ORGANIZATION. THE INFORMATION CONTAINED HEREIN IS CREATED IN RESPONSE TO EMERGING OR UNIQUE TOPICS, OR IS INTENDED SUPPLEMENT OTHER KNOWLEDGE BASE INFORMATION.

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Cause

After updating a Windows Server 2008 system with Service Pack 2, the power utilization of the computer remains unchanged when idle.

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Resolution

Updating a Windows Server 2008 installation with Service Pack 2 does not overwrite the power policy. Only a new install of the "slip stream" version of Service Pack 2 with the Windows Server 2008 operating system will install the new default power policy.

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More information



The new policy can be enabled on systems that performed a Service Pack update by issuing the following commands:

�
powercfg /setpossiblevalue /sub_processor /procperf 2 binary 640364000000a0860100a08601001e00000032000000


������������powercfg /setactive scheme_balanced

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Disclaimer

For more information on power managment considersations in a Data Center, see http://www.microsoft.com/whdc/system/pnppwr/powermgmt/Svr_Pwr_ITAdmin.mspx��

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Keywords: KB970720, kbnomt, kbrapidpub

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Article Info
Article ID : 970720
Revision : 1
Created on : 4/28/2009
Published on : 4/28/2009
Exists online : False
Views : 229