Fullscreen games alt tabbing causes lag spikes

[antanas1452]

When alt tabbing in or out of a game that is in full screen (Not border less) mode it will cause these lag spikes for a couple of seconds. Id like to find out a solution on how to fix this issue.

Video for example https://youtu.be/FzpPhbGyN3U


Also I'm having another issue (Which you can see at the start of the video) where the CPU temperature keeps waving and makes the fans speed up and slow down which causes unnecessary noise. Pretty sure this is a software related issue since it doesn't do that when in BIOS.

Temperature waving

 

[bniknafs9]

where the cpu temperatures keep waiving your motherboard is oc'ing your cpu , if you don't want that you gotta fix the speed

 

[antanas1452]

where the cpu temperatures keep waiving your motherboard is oc'ing your cpu , if you don't want that you gotta fix the speed

I have fixed the speed but the temperature keeps waving.

I have a closed loop liquid cooler set up on my CPU and it is running at a constant speed.

Edit: I have noticed that the CPU might not be running at fixed speed, I'll do some testing.

Edit #2: Did some testing, Aida64, AMD Ryzen Master and Task manager are all displaying stable frequency. I doubted it at first because task manager was displaying changing frequencies.
With stable frequencies the temps are still waving

Gray line is CPU diode temp, yellow is CPU temp. In the first screenshot of this comment the CPU and CPU diode temp was identical so I only included one but now only the CPU diode temp is waving

 

[antanas1452]

Bump