A little more description would be helpful as to what happens when the PS3 crashes. I can only assume from the description that the video and audio stop and you see or hear nothing when you press the power button. If this happens note the color of the lights on the front of the PS3 this problem is usually associated with the Yellow Light of Death. You will at least want to try power cycling the system before you attempt to take it apart or send it in to PlayStation Repairs. To do this simply unplug it for 30 seconds to 1 minute and then plug it back in. You can also do a soft reset on the video by holding the power button for 3-5 seconds as it is turning on like it states in the owner's manual.