Pc turning on and then off in a loop

Tldr; i turned on my pc this morning and it turned on and then off, then on again and off, just looping like that.

I tried reseating my gpu and ram but that didn't help. Then i removed my cmos battery and put it back in again.

Then my pc stopped looping and was just stuck on a black screen. I had to install windows 11 again aftee the bios reset.

After the installion my pc went to the desktop and seemed to work fine. Then i shut down my pc and plugged my hard drives back in that i had previously plugged off (just to be sure that nothing gets deleted from them), then i started my computer and now it's turning on and off again