Inconsistent power usage - your experience?

Community Support
1

I am having issues with Davinci Resolve (memory allocation that causes the program to crash 100% of the times I switch between some of my timelines).

In the tests I am doing to find a solution, I have discovered a weird thing. If I open the pc while plugged in, the gpu draws more than 20W; while detached it draws less than 20W (even in “best perfomance” mode). This is the norm. However, if I start the pc while plugged in, then detach it, and finally reconnect it to the wall, the system draws 20W maximum (with an average of 15W).

So, everytime I start the computer plugged in does it do this? No. I want to say 80% of the times it starts as if it was on battery (20 - 15W).

I want to exclude thermals from the equation: I am in an hotel right now, and I was able to activate the high wattage mode while working on the bed.
I also don’t think it depends on the battery charge: I activated it with the battery at 55%. I even tried to cap battery charging at 50% to see if it could activate when the battery was fully charged, but it drew 20W again…

I am not even sure where I should dig in the system. What’s your experience? Do you have any idea? I am a bit lost…

I have a 7640U (Adrenaline 25.3.1, and I tried also 24.12.1). I power it thorugh a UGREEN 140W charger (USB PD 3.1). I am on Windows.

2

I have a first update on the matter.

I now know how to activate the high performance/wattage mode. I initially believed I have solved the issue by reinstalling the graphical drivers, but this is not the case. Why I thought that, though? Because I restarted the computer while plugged in.

If I unplug then plug it in and restart the pc: more than 20W of power consumption.
If I unplug, then plug it in, shut off and then re-open the pc: less than 20W of power consumption.

I don’t think this is just a monitoring issue, since I can feel a relevant enough difference in performance when I am handling videos.