I am using Sapphire Trixx to workaround the stupid power issues (the card make almost all games unplayble with default power limit, I have to use +20%)
one day I launched games after rebooting, WITHOUT launching Trixx first, I forgot.
The card then became smelly, and made lots of coil whine.
When I launched Trixx, it immediately ramped up the fans using my profile, and temperatures were near 90c with only 10 minutes of gameplay (and dropped with my profile to 45C, with fans at 45C being inaudible).
I am using Windows 7 64-bit
Driver is 16.6.1
Card is Sapphire Nitro 380X
Mobo ASRock z97 Extreme4
CPU Intel i5-4690K