Windows 10: Task Manager showing Intel Core i5-2500K operating at 5.29GHz??

Discus and support Task Manager showing Intel Core i5-2500K operating at 5.29GHz?? in Windows 10 Performance & Maintenance to solve the problem; Thank you so much for the information, but I have a question... Why does my (very) old laptop with a Pentium M 740, which is a single core clocked at... Discussion in 'Windows 10 Performance & Maintenance' started by bobjoe, Nov 14, 2015.

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  1. THEVETERANS
    theveterans Win User

    Task Manager showing Intel Core i5-2500K operating at 5.29GHz??


    It seems like that is due to power management from BIOS / Windows to me. In my experience when EIST is disabled, dynamic frequency is also disabled so if the BIOS or Windows is limiting power use, the CPU won't operate on its highest speed and won't slow down to its lowest speed. For example, if plugged in, if the CPU supports 800 - 2900 MHz frequency, with EIST off and power saving feature is enabled, CPU will get stuck at 800 MHz (there are many cases of this on google search). On the other hand, if EIST is off, "C state demotion" is disabled and Windows/BIOS power saving feature is disabled, CPU will always operate and get stuck at 2.9 GHz. In short, EIST just disables dynamic clocking (frequency won't chage) and it doesn't care what CPU frequency the chip is at currently.
     
    theveterans, Apr 4, 2018
    #16
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Task Manager showing Intel Core i5-2500K operating at 5.29GHz??

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