I Have Windows 10 2004 , Core I9 9900K And Gigabyte Z390 Ud Mainboard.
Since enhanced intel speedstep® technology for intel® processors depends on bios and operating system (os) mainly, we would like to recommend a clean installation of the operating system just to rule out an underline os issue. The intel processors have inbuilt eist and c1e advanced features, which basically enable this software to put pc screen or the whole system in standby mode. What this technology does is to dynamically scale the speed of the processor between its default clock setting and a minimum speed (at the moment) of 2.8ghz based on how much cpu horsepower is.
This Is The Effect Of The Cpu Power Reduction Mechanism :
During the boot process, press the delete or entf button (depending on your keyboard layout) to enter the bios. With this technology, the cpu varies its frequency (and voltage) between about 40% and 100% of its base frequency in increments of 100 mhz (for banias core) or 133 mhz (for dothan core). Cstate mode = auto (so cpu can dynamically change cstates depending on load) then use balanced power plan in windows when doing light pc tasks such as web browsing, watching movies, etc.
C1E (Enhanced Halt State) And/Or Eist (Enhanced Intel Speedstep Technology) For Intel Cpus, Cool'n'quiet And Or.
Press ctrl + alt + delete and select the performance tab. It doesnt affect operation in full blast. Change power technology to custom and energy efficient turbo to disable.
Basically, If You Are Sitting At 4700 Mhz At, Say, 1.30V, What C1E Does Is Switch To 1600 Mhz At ~1.05V When Idle And Switch Back To 4700 * 1.30V When Under Load.
Eist only affects the computer when it is in a idle state or if it is using very little processing power. To turn enhanced intel speedstep technology off, select always on power scheme. Set up power management to [balanced] or [saving].
Verify That Cpu Usage Is 0%.
Make sure all the hardware support eist, ex: Keep in mind that eist will not work without c1e left in enabled state. To verify that enhanced intel speedstep technology is enabled: