how do you fix e74 error code?

[ynwa1975]

my xbox 360 has developed an e74 eror code it's already got the pro kit on to fix 3 red lights was wondering if anybody knows a permenat fix for this?

[smirnoff_rules]

slacken x clamp repair kit and use a hot air gun on the bottom side of the board and re-tighten and they start working again most of the time m8 ( dont get too hot .. and minute at 7 inches away it about right l find