Question My PC freezing/lagging randomly

Aug 30, 2021
2
0
10
Hi.
So, a month ago, I started having a problem.

The PC starts freezing completely at regular intervals (every 0.5 sec), and the freeze lasts approximately 0.2sec. Desktop, ingame .. everything
I noticed that freezes / lag starts when I turn the monitor on and off.
There are no rules, sometimes start without turning on/off monitor, ingame starts, sometimes on the desktop..

Stress tested processor, graph .. everything ok
Temperatures are okay.
Tried to change the speed of the ram memory, all the same ..
Clean reinstalled windows 10
SSD and HDD are on 100% health.
Also the processes and usage in the task manager is normal.

Sometimes it works quite normally all day, I can play whatever it is on whatever settings. And sometimes it just starts freezing on the desktop. Sometimes it calms down after 10-20 second or 2-3 minutes - there is no rule, sometimes I have to restart the computer.