Close your ps3 for 2h and put him in a cold place: garage, etc. Then put it back in your room and connect the cables. Make sure there isnt too much dust. I there is, clean it. I hope this works!
The following user thanked SpaceBomber for this useful post:
Same here, i got the YLOD but i fixed it too, now my ps3 sounds like a B52 Bomber after 20 minutes of playing a game D=
A fix that i was thinking of doing was to add a variable resistor into the connection between the cooling fan and the motherboard, so i could tune it up (most likely down) when i wanted to....But i haven't gotten around to doing it/ Somewhat scared