PC hangs 1-3 times a day. Check what?

Question

linux

In the last week I've been working in the IDE, and then either everything just hung tightly (including the mouse) or (for the last time) both monitors blinked for a second, and after that everything just hung. Saves only reboot.
What could it be? And what logs to see?
Power supply 600V / GTX 1650 / 2 monitors / GIGABYTE Z390 UD / PATRIOT DDR4 - 16GB 2666 / i5 9400F / SAMSUNG 860 EVO MZ-76E250BW 250GB, 2.5"
OS:

Answer 1

I would check that it is the system that hangs, and not the graphics. The check is simple, if the computer is available over the network (ping / ssh), then the graphics hang - change the driver settings. If not available, but both noacpi and swap have already been advised here ...

Answer 2

I would check the overheating of the processor. HDD. And load vidyahi. tests

Answer 3

Ubuntu hangs like this when it eats all the memory and fills the entire swap.
True, after some time (minutes) it hangs for a short time, but if you don’t have time to clear the cache, it will hang again and already meet or just for a longer period. It's about 18.04. Look at htop for memory.

Answer 4

atop will tell