PC freezes out of the blue, what could be the reason?

Question

Iron

From time to time, the PC freezes, no specific event has been performed before.
I reinstalled Windows, the situation repeated itself, where to look for pain?
Falls off after 2-3 minutes

Answer 1

The very first thing that could be a problem is the power supply
Then overheating
Then take out and plug in the rest of the pieces of iron in turn (maybe the RAM is filled up to a broken chip, the HDD hangs on a broken sector)
Download Aida64 - there is a simple stress test with temperature graphs in the top menu and others

Answer 2

Check memory, disk, power, and temperature.

Answer 3

Check your memory for errors. Check that there is no closure of the motherboard contacts to the case, check the capacitors.

Answer 4

Change and check in turn - power supply, hard drive, memory, mat. board, processor.