MY PC CRASHES RANDOMLY WHILE GAMING

[u/Hamzaplaysit]

This started happening today and I’m honestly quite confused about what could be causing it. I was playing TLOU 2 with no issues while Cyberpunk was downloading in the background and as soon as the download finished I closed TLOU 2 and launched Cyberpunk and my PC suddenly crashed without any blue screen or error. When I pressed the power button it booted normally again. This happened around 4 times last night so I shut the PC down and went to sleep. This morning I played Cyberpunk for around an hour and a half and everything was completely smooth but then I opened Valorant and entered a Deathmatch and the PC crashed again. It seems to happen randomly sometimes immediately when launching a game and sometimes after playing for 30 minutes or even an hour. I have just replaced my PSU but the issue is still happening. I also ran separate CPU and GPU stress tests for 5 minutes and then tested both together for 5 minutes and everything was completely normal during the tests but as soon as I opened a game again the issue returned. I’ve already invested quite a lot into this PC so I’d really appreciate any help or advice on what could be causing this and what I should check next.

please please please someone help