Quote:

Nacho..
In looking @ changing out the power transistor I find no mention of using the insulating thermal grease...
Thermal grease is absolutely required for bonding the power transistor properly to the insulator to its heat sink mounting. Without this the power transistor can heat up, burn out and fail. As it is not using the heat sink to help cool it down..

Here is a link to a YouTube video for the proper procedure.
https://www.youtube.com/watch?v=hNRacVQRgBc

Just my $0.03...


HaHaHa!! that was my old Xbox 360's problem!