QUOTE(Aldanga @ Nov 22 2011, 02:24 AM)
No need. Just edit your config in 360 Flash Dump Tool. The thermal values are what you want to edit. After editing, flash it back to your console. The first three temps are target temps for CPU, GPU and EDRAM; the last three are overload (which I believe is for console shutdown/overheating).
Used 360flashdumptool v.97 and it worked like a charm on my Trinity. Dropped it 10c and its still nice and quiet