Go to https://store.brewology.com/homebrew.php?lang=# Then look for the tempmon pkg and you can control your fan speed to keep your ps3 cooler : r/ps3homebrew
Control Fan Utility for PS3 CFW 4.78 / 4.80 Updated by Baxalo | PSXHAX - PSXHACKS
PS3 - Control Fan Utility [v4.83 Unofficial] -Control your PS3 Internal fan to help prevent overheating | PSX-Place