okay this is what i did follow the sodering steps until its all done....then do not put it back together....go online and buy a gaming computer housing put it in there with a computer fan inside the housing and it plays great and cool, mine never over heats and i had it die about 2 years ago. it costs a bit but its way less then a new xbox.
goodluck (p.s. it looks sick if you get a clear housing with l.e.d.s inside)