Windows 10: CPU speed at 0.48Ghz during low battery
CPU speed at 0.48Ghz during low battery
On my laptop, I have noticed that the CPU speed is dramatically reduced from 1.98Ghz to 0.48Ghz whilst low on battery. As soon as I plug the laptop in, the CPU speed returns to 1.98Ghz. This loss of CPU speed has a great impact on system performance, rendering the laptop near useless.
My laptop is running an Intel Core i3, and I believe that the technology which controls the speed of the CPU is called SpeedStep. There is no option in the BIOS to turn this feature off. I have also tried to change this setting in the 'Power Plan' options (in Windows). I changed the minimum processor state to 100% and the cooling policy to 'Active'.
I would like to keep my CPU running at 1.98Ghz. Any suggestions?
(see this photo for clarification)
That can happen and is somewhat normal depending upon how the manufacturer implemented it. I have done it and seen others do it by changing the power scheme to an always-on Desktop. Of course that depletes the battery much faster. But then Windows takes a lot of its settings from what the BIOS makes available.
Many thanks for your reply.
What do you mean by an always on power scheme? How would I go about enabling this?
Haven't needed it but it worked on WinXP in the Power Options in Control Panel, just need to check Power Options, Balanced, Change plan settings, Change advanced power settings. Some Notebooks may not have exactly the same thing as brands can have their own version of controls.
Sorry, but I am still not sure what your point is.
If I go to "Control Panel, just need to check Power Options, Balanced, Change plan settings, Change advanced power settings" and change the minimum CPU state to 100%, no change happens, as I stated in my original post. You can see my settings in the screen shot linked to the original post.
Guess it's time for a new machine but maybe try a new battery?
Power management and battery saving isn't the only thing controlling the CPU speed, there's also the cooling policy. Passive cooling reduces clock speeds to keep the heat down while active cooling favours boosting the fan speed. You should see 'System cooling policy' in your advanced power management settings.
Thanks for both of your replies.
Regarding Berton's reply, the laptop is only about a month old, so defiantly not time for a new one yet!
As for Bree's reply, the 'System cooling policy' is now set to active. However, the laptop continues to go to 0.48Ghz when low on battery.
Thanks again to both of you.
Perhaps a silly question, but there's a 'Maximum processor state' setting there too. What's that set to?
A month old? Should be in warranty, battery also, 1-year unless extended was purchased. But most replacement batteries carry only a 1-year warranty.
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