This is a serious issue. My ps3 stopped reading disc's so I gave it to Sony and they charged $150 to give me a new console.
Now with the ps3 the fans make too much noise, and after sometime it shows you system is too hot, the red light starts blinking and the ps3 switches off.
This happened to me few weeks back, what I did is unplugged my ps3 for a few hours, and then it was back to normal for a few days. This problem reoccurred after 3-4 weeks.The main cause is that the GPU heats up and needs to cool down If the problem persists just do as I did. Try this. If it doesn't work call Sony.
Got the same problem and only with Uncharted 2 as well.
Not a ventilation problem because I can play other games for hours and it still works just right.
I think we should get an answer directly from Sony.
I have fixed this very easy on about 6 PS3s right now.
The problem is, the CPU/GPU chips are comming away from motherboard.
Also the Heatsink compound used at manufacture is rubbish and goes brittle and drys out, it does this on the CELL and GPU top heat sink (that mates to fans) and also under the heat sink on the CELL and the GPU.
If the PS3 is OOW, you have nothing to loose opening it up and attempting a repair on your own , it takes 10 mins to strip a PS3 , 30 mins to fix and 10 mins to put it all back together.
Take it all apart , clear all dust with a air duster. get down to the bare board.
you need a HEAT GUN (paint stirpper gun will do) now with the Mother board on a flat surface, and the CELL and GPU faces on the other side, heat the motherboard all over with the gun for a good 10 mins, with 5 mins to cool in between does this twice. (this will reflow the solder)
once done, clean all the old heat sink compond off the CELL and GPU chips and under the chip heat sinks and clean up the mating surface on the FAN heat sinks.
I use DOW CORING 340 heat sink compound, chuck that on the chips/heatsinks and fan heat sinks and put it all back together. ( I would avoid that Artic silver cack )
Plug it all back in , turn on and enjoy you PS3
Same process for fixing Xbox360s.
Its a combination of the crap solder and rubbish heat sink compond that we end up like this.
okay, so you have YLOD, yeah i had it and i thought i was gonna die lol.. but its all good. what you do, you find a cardboard box and put it on a table a high surface, then you put the ps3 all the way in the box backwards, and you blow dry the back of the ps3 (vents) on hot for 15 minutes then you take out your ps3 and place it on your table and put a fan on high/cool to cool down your ps3.. then your ps3 works and has all of its data, that happened to me.. if you don't know how to do it, go to this youtube video. http://www.youtube.com/watch?v=buWpnrsQTTM