The PS3 Slims have a very slim chance of getting YLOD, if even any. Only the phat models.
The slim's have a 45nm cell processor that runs almost 30% cooler than it's predecessors. It is also 45% more energy efficient than the phat models.
thats y i took time and tried explaining how circuit works.One of my friend's ps3 slim got ylod and found out he always turned his ps3 off completely. The repeated hot and cold cycle in the circuit of ps3 caused the ylod.I didnt specify the ps3 here because circuit is a circuit.Its going to have the same fundamental weakness. Slim design is engineered better and yes its chances are lesser than that of older ps3 (fat).
Here's an anology:
Skinny person would live longer than a fat person.That's how you are thinking. It doesnt mean the skinny person cant get a disease and die even eariler. That's what Im trying to say.