QUOTE(Col.Havoc @ Mar 1 2009, 03:13 PM)

When it comes to putting the screws down snug, for me, it was going hand tight on all four screws (make sure none are cross threaded/otherwise) and I did a quarter-half screw more, with a driver.
Overheating, the first time I did this method and overheated my xbox, it only took about a minute or two to overheat. I did the countdown after it started to overheat to 2 minutes (probably a bit more) turned it off, and tightened the screws in place (not as hard as I should have done probably). Once I was done, cooled down, turned back on, RRoD. So, I decided to re-watch the videos and decided to tighten the scews down a bit more (both pre-heat and once it was heated) and this time it took about 3 minutes to overheat, and the heatsinks did get quite a bit hotter. Did the 2 minutes again, and this time I turned the screws for all they were worth. Put everything back together, did the fan shroud mod, turned it on and voila!, works great.
So make sure the screws are tight the first time around, or make them loose and make them tighter after cooking it?