Power limit Cpu (laptop)

[M4C1X]

i have a dell 7755 laptop with i7-7700HQ cpu. I have problems with the powel limit throttling because when I play at random moments the power limit is set to 10W which decreases the speed of cpu and fps. I have a throttlestop program can it help? How should I configure it to solve the problem?

[Likwid]

Are temps normal?

[M4C1X]

56 minutes ago, Likwid said:

Are temps normal?

yes they are about 83 ℃ checked if it's their fault but even at over 90 clocks were not beaten

[unclewebb]

Intel CPUs use three unique sets of turbo power limits.  You can only use ThrottleStop to control two of these sets of turbo power limits.  You already tried that without success.

 

The third set of turbo power limits is managed separately by the EC and it cannot be controlled by ThrottleStop or any other freely available software.  On your laptop, it seems that the EC is occasionally setting one of the turbo power limits to 10 Watts.  That is what is killing your laptop's performance.  The CPU always compares all 3 sets of power limits and uses the lowest value.  The 10 Watt power limit will always win and will be enforced by the CPU.

 

Some engineer at Dell knows exactly what is triggering this.  It might be a separate temperature or power sensor on the motherboard.  Some laptop motherboards use an infrared thermometer that points up towards the keyboard area.  When this sensor reports that the laptop chassis is too hot, then it will trigger the EC to reduce the turbo power limits to manage the CPU and heat it is generating.    

 

For smoother game play, all you can do is lower the performance of your CPU which will reduce heat and power consumption.  You need to do this to avoid the EC from randomly dropping performance to 10 Watts.  The ThrottleStop log file clearly shows when this is happening.  Try running your CPU with turbo boost disabled to see if this helps avoid the 10 Watt limit from being kicked in.

 

Many Dell Inspiron laptops have had these sort of throttling problems for 10+ years.  If you can, you would be best to dump it on EBay and get something else.  A laptop with a 45 Watt CPU should be more than capable of running at that spec indefinitely.  Sadly, your Inspiron has been neutered by Dell so it is not capable of that.