Then its only a matter of time. The fat PS3 was manufactured with second-rate solder, so eventually the heating and cooling of your hardware will cause the connections on the mainboard to fail, and you'll be presented with the 'Yellow Light of Death'. I fix these things as a hobby, and let me tell you, old, fat PS3s die often. It takes me about 2 hours to strip one, "reflow" the solder, cool it and put it together, and I've got a few that I've had to fix multiple times. Sony didn't make the same mistake with the slim, and I haven't seen a single slim PS3 fail.