I’m clueless with electronics but my PS4 was on its death throes with overheating. I read this guide and watched the video (coffee break included) and got to work. The only trouble I had was that my husband (he’s a good guy normally) decided to help and used too big pliers and broke the connector between the power supply and PS4. Ok, so 5 days wait for replacement. I replaced the fan, thermal paste, and pads and put it back together (shaking like a leaf in a hurricane). It’s quiet and works thanks to ifixit.com. Thank you so much!