Things You'll Need
Instructions
Remove the case, Blu-Ray player and power supply from the PS3. Remove the hard disk drive before removing the remainder of the items from the main board. Disconnect the battery cable from the main board.
Soak a cotton ball in sterile alcohol and use it to completely clean one of the main processors. Repeat the process for the second processor.
Stabilize the PS3 motherboard on a solid surface that will not allow it to move with the two main processors facing down. Heat the heat gun to 660 degrees Fahrenheit. Remove the rubber covers from the two processors so that the rubber will not melt to them. Heat each of the chips for 15 seconds, then heat behind the two main processors for 15 seconds. Let the board set for 15 minutes to cool; do no touch it at all.
Turn the board over and stabilize again. Heat the two main processors and the back of the two smaller processors for 15 seconds each. Allow the board to cool for 15 minutes again.
Apply heat sink compound lightly but evenly across both of the main processors; it should be almost see-through when complete. Put together the rest of the PS3, installing the hard drive last. Turn the system on.