Just repaired my 360 for about the fourth time this year. It's really odd how everytime I've fixed it I've tightened the heatsink screws at different strengths. Everytime it RRODs I just re-apply AS5 and adjust the screw tightness, eventually it comes back.
Got fed up with the annoying clips on the back, ended up smashing all of them so opening the 360 only takes about 20 seconds now (haven't bothered with half the screws either).
Got fed up with the annoying clips on the back, ended up smashing all of them so opening the 360 only takes about 20 seconds now (haven't bothered with half the screws either).