Change Windows Power Scheme – Server Core R2

Posted: August 31, 2010 in Computers and Internet

The Windows Performance Tuning Guide suggests enabling Processor Performance Boost (Intel Turbo Boost Technology). A fresh install of Windows 2008 R2 (Core) sets the power scheme to Balanced, where Turbo Mode is disabled. From the Tuning Guide, you can modify just the Processor Performance Boost policy under the Balanced scheme, but as I’m usually running my OS as a virtual machine, I’ll just show a command to set the power scheme to High Performance.

The single line command below with determine the GUID for the “High Performance” power scheme and set it to the active scheme:

@echo off & echo. & echo Current Power Scheme & powercfg -list | find /i “) *” & echo. & powercfg -list | find /i “high” > %temp%\pwrcfgs.txt & for /f “tokens=4 delims= ” %i in (%temp%\pwrcfgs.txt) do @powercfg -setactive %i & echo. & echo New Power Scheme & powercfg -list| find /i “) *”

Output:

Current Power Scheme
Power Scheme GUID: 381b4222-f694-41f0-9685-ff5bb260df2e  (Balanced) *

New Power Scheme
Power Scheme GUID: 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c  (High performance) *

 

Turbo Mode will now be enabled.

[edit] See new recommendations from this KB2207548.

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