Place the motherboard back into the case. Line up the processing units to the heat sink as shown.

You do not need to press down firmly. Screwing the heat sink clamps back on will ensure the paste spreads evenly.

Starting from step 22, follow this guide's steps in reverse order all the way to step 1 to reassemble the PS3.

Be sure to refer to step 21 when screwing the heat-sink clamps.