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Core Parking can cause performance issues. The reason it is here, is because of energy efficiency. If you want your Windows 7 to run as smooth and fast as possible you should disable it. I tried it and made a test before and after with 3dmark06.
10. april 2011.
After been using my computer with disabled core parking for some months, and then reinstalled going back enable I can tell that disabling core parking really makes a difference. The system respons is improved a lot when disabling it.
Read more about why, here
- Go to Regedit
- Select Edit > Find... and find this key: " 0cc5b647-c1df-4637-891a-dec35c318583 "
- Within this key, there is a value called: " ValueMax " This value represents the % number of cores the system will park
- Change the value of " ValueMax" to 0 so that, it matches " ValueMin "
- You will have to find the key a few times and repeat the process for each time it is found - the number of instances will depend on the number of power profiles in your system. To do this go back up to Edit > Find Next. (I had 3 instances of this key in my registry.)
- Do a full shutdown and power-off and cold-re-start.
With coreparking (windows default)
After coreparking (adjusted by the guides below)
After disabling core-parking all the cores are in use more equal than before. HWMonitor still measure only a very little power usage in idle so I will keep core-parking disabled.
3dmark might not be the best place to test things like this, since it might even with core-parking enabled run with all cores active.
Guides to get it done:
http://ultimatecomputers.net/forum/viewtopic.php?f=7&t=3644
http://forum.notebookreview.com/asus/494232-how-adjust-core-parking-inside-windows-7-a.html
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