Elitegroup 557 - Manual (Page 77)

Remove all the screws attached to the heatsink.
Before removing the screws, there are certain measures to followed in removing the heatsink
To remove the heatsink, first loosen the screw carefully.
After loosening one screw, be certain that the next to be loosen should be the screw on its
adjacent side as shown on the illustration.
Be sure to loosen all the screws first before removing it totally to release the heatsink.
Failure to do so will cause a major damage to the heatsink.
Now you can totally remove all the screws also in that order when you first loosen the screw.
67