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Windows 7: Maximum Frequency Below 100%

30 Apr 2010   #1

Windows 7
Maximum Frequency Below 100%

The maximum frequency can be found by going into the resource maneger from the task maneger. I know it is below 100% for laptops running in a power saving mode but it should never be belwo 100% for a desktop should it? It's not like im running a ton of processes and my core temps are 25c or below most of the time. Any ideas on why this could be happening and how I could fix it?


My System SpecsSystem Spec
30 Apr 2010   #2
Microsoft MVP

Windows 7 Ultimate 32bit SP1

Mine's in the 70's ... desktop
My System SpecsSystem Spec
30 Apr 2010   #3

Windows 7 Professional

100s desktop.
My System SpecsSystem Spec

30 Apr 2010   #4

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86

Thats Intel speedstep (EIST) at work. Its a technology that automatically lowers cpu clock speeds when the cpu is not doing anything strenuos. That reduces the load on the cpu, lowers temperatures, keeps fan noise down and lowers your electricity bill. Moreover, Speedstep is able to change the processor speed almost from cycle-to-cycle, which means for the user it will happen so fast as to be instantaneous.

Why do you want the cpu to run at max all the time? Are you experiencing any lags? IMO, there is no advantage in trying to disable speedstep unless you're experiencing lags. The only way i know that you could disable speedstep would be through your bios. Do the following:

1) Check the seetings of your Power plan in Control panel->power options. Verify that in Advanced Plan settings->Processor state, both max and min processor state are set to 100%.

2) Go into your bios configuration and look for "EIST". It may be under Advanced options or elsewhere depending on your system. Disable it there.
My System SpecsSystem Spec
30 Apr 2010   #5

Windows 7

I don't have lag, it's just that back when I had only a laptop I was having some issues with it staying at 100% and remember reading that desktops should be running at 100%. I didn't realize that there was a reason beyond saving battery life for the maximum frequency to be below 100%.

Thanks for clearing that up!
My System SpecsSystem Spec

 Maximum Frequency Below 100%

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