I put new thermal pads, they cover the chips completely. PS4 Pro stopped making noise at all! It's been 6 months, how did the replacement and it's still pretty quiet, I play
How to Disassemble, Clean and Reassemble a PS4 Slim: 14 Steps
Amazon.com: Cooling Fan for PS4 Slim Console,DC 5V 600mA 3 Fans Mute Cooler System for Sony Playstation 4 Slim,External Temperature Control Pad : Video Games
PS4 Slim review: A smaller, sexier console with few compromises | Ars Technica