Limit CPU core count on battery?

[Lucian_Dragos]

I just bought an Dell G7 7590 with a i7-9750H 6 core CPU and on AC it's a little beast. The problem comes form trying to run on battery it becomes very slow for some apps and older games. (i.e. some things that ran ok on my old $250usd A12 APU Lenovo notebook while using battery run worse on this $1,200 i7 laptop the same way)

 

From what little testing I have been able to do it the short time I have had it, It would seem the issue comes from power delivery limits from the battery making the CPU per-core speed throttle way down as more cores come active. For example with 1 core active (shown in Intel's XTU) the speed sits at just shy of 3Ghz but open Firefox or other app and all 6 core come up dropping the speed to as low as 1Ghz or less..

 

So what I want to know is there a way to automatically limit the system to only say 4 cores on battery and still let it use all 6 on AC with out having to reboot to BIOS every time, Just to try and keep the core speed up as some of what I run would do better with fewer fast cores then more slower ones..

[Akira Shimazu]

nope. cores are automatically run.

[mr mans]

Take a look at ThrottleStop. Its a utility that lets you control power, voltage, and certain clock speed settings. You can have profiles set up for battery or AC power and it will switch automatically. You won't be able to control core count but you can adjust stuff to prevent your throttling somewhat (it depends on the CPU and generation)

 

I use it on a Thinkpad T540p to control severe throttling that happens by default due to this third-party battery I have on it. 

[Guest]

4 hours ago, Lucian_Dragos said:

I just bought an Dell G7 7590 with a i7-9750H 6 core CPU and on AC it's a little beast. The problem comes form trying to run on battery it becomes very slow for some apps and older games. (i.e. some things that ran ok on my old $250usd A12 APU Lenovo notebook while using battery run worse on this $1,200 i7 laptop the same way)

 

From what little testing I have been able to do it the short time I have had it, It would seem the issue comes from power delivery limits from the battery making the CPU per-core speed throttle way down as more cores come active. For example with 1 core active (shown in Intel's XTU) the speed sits at just shy of 3Ghz but open Firefox or other app and all 6 core come up dropping the speed to as low as 1Ghz or less..

 

So what I want to know is there a way to automatically limit the system to only say 4 cores on battery and still let it use all 6 on AC with out having to reboot to BIOS every time, Just to try and keep the core speed up as some of what I run would do better with fewer fast cores then more slower ones..

MSCONFIG. Boot tab. Advanced options tab. Check box  "Number of processors" type in desired amount of cores/threads, save and restart windows.

 

[Lucian_Dragos]

Sadly after research and testing it seems as if Dell baked the throttling into firmware... So no matter what is tweaked in windows or ThrottleStop it still drops the clock on battery