The yellow light of death happens only in the PS3 because of overheating or HDD problems, but most likely is overheating.

It happens when you play more than 10 hours a day, non-ventilation or simply keep it turn in on for a long time. You cannot remove the disc of you're PS3 and cannot do anythin more than call Sony and pay more than 150$ for fix it.And only 0.3 percent of users have this problem.

Why i'm telling you this? Because my PS3 is dead and the fu**ing YLOD beated my PS3 today :(

But luckly i saw that there is a cheap solution (But i cannot say that it isn't dangerous) so i will start the repair tommorrow with a profesional, cuz' i don't know anything about this things lol.

Wish me luck guys.