Chosen Solution
I’ve got a PS4 I got off of a friend who had it overheating. It ran extremely loud and turned off with a “PS4 is too hot” blue screen after opening a game. I opened it up and found CHUNKS of dust in the heatsink so I fully took it apart (carefully) and cleaned it out and put it back together. The one thing I didn’t do is replace the thermal paste as I can’t find mine. (It did look a little crusty). It still is doing the same thing, ramping up the fans to 100% even on the menu but the funny thing is when I put my hand behind it all I can feel is cold air. Any ideas on what the problem could be? Replacing the thermal paste might work? It’s the launch edition if that makes a difference. Thank you!
Replace the thermal paste and thermal pads on the RAM. Those things are supposed to be discarded whenever the console is disassembled.
The microchip only has so much surface to exchange heat with the air, so even if the airflow is good, thermal paste or a heat sink often are required to conduct the heat away from the chip to then be transferred into the airflow (convection).
