Question on GPU and CPU spiking only when plugged in? Weird case

Apr 15, 2021
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I have this notebook which has nvidia 940MX 2gb (also, i5 7th gen, 8gb ram, 250gb ssd 1tb HD, win 10)

When I open CS:GO with batteries on, the game runs smoothly, the gpu works fine. I get nice constant fps.
However, immediatly after I plug in the power supply, the gpu usage starts spikin from 100 to 0, very laggy. This happens to other games too.
The moment it starts spiking is when I plug in the power supply (You can see where has the red circle)

I tried SEVERAL things. I cleaned the notebook's inside, I don't believe it's temperature thing otherwise it should occur plugged in or not
I tried to energy options configurations, every single possible way.
I tried adjusting configurations on nvidia contro panel, in many different ways.
I tried to find similar problem on youtube, google, every place on the internet. But nothing solved.
Yes, all my drivers are updated.
The problem seems to appear only when the notebook is running with the power supply.

The power supply itself seems ok to me, since it has no problem charging the notebook. So I don't know what could it be


Very weird problem. I beg someone to help me since I can't buy a new notebook now. I need to fix this one.
This forum is my last hope.
 

I have this notebook which has nvidia 940MX 2gb (also, i5 7th gen, 8gb ram, 250gb ssd 1tb HD, win 10)

When I open CS:GO with batteries on, the game runs smoothly, the gpu works fine. I get nice constant fps.
However, immediatly after I plug in the power supply, the gpu usage starts spikin from 100 to 0, very laggy. This happens to other games too.
The moment it starts spiking is when I plug in the power supply (You can see where has the red circle)

I tried SEVERAL things. I cleaned the notebook's inside, I don't believe it's temperature thing otherwise it should occur plugged in or not
I tried to energy options configurations, every single possible way.
I tried adjusting configurations on nvidia contro panel, in many different ways.
I tried to find similar problem on youtube, google, every place on the internet. But nothing solved.
Yes, all my drivers are updated.
The problem seems to appear only when the notebook is running with the power supply.

The power supply itself seems ok to me, since it has no problem charging the notebook. So I don't know what could it be


Very weird problem. I beg someone to help me since I can't buy a new notebook now. I need to fix this one.
This forum is my last hope.
Check to make sure the system is set to play off of GPU not CPU? It maybe trying to use some of the GPU but mainly dedicated to just the CPU...
 
Apr 15, 2021
3
0
10
0


Well, I tried to change this in the nvidia control panel. It has the same problem. The problem occurs whenever I am at the power supply.
As you can see, the exact moment I plugin the power supply, cpu clock starts to oscilate from 2600 to 402. Is this an energy problem?
Could it be that the power supply is working but not when it needs to much energy. Like it has a current limitation problem?
 

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