Burnt mosfet after installing new GPU

PSU Chieftec CTG-750C

Windows on SSD m.2

After installing an RTX3060ti on Gigabyte b450 DS3H with Ryzen 5600x it shut down instantly right after installing and then again after 15 minutes of use. I thought maybe it was due to my GPU pressing on a sata port (it was literally sitting on top of it I think) so I tried flipping the case and use it horizontally. Everything worked fine for 2 hours so I decided that maybe I should try using it vertically one last time with SATA cable put in. I did this and instantly smell some burning plastic and saw smoke coming out of my pc. I unplugged it and started looking for clues. The only thing I found is a little burnt 4c10n mosfet underneath the 3rd (counting from 0) sata port (which I was not using). Pc worked fine since 2018

What may have caused this? Are my other components fine?