I installed a EFI Flashed AMD 7950, and now my PCI-E and Power Supply Fan are running much faster according to istat (1600RPM). When I had a EFI Flashed 6870 I was also getting the same issue with the loud\fast fans. Anyone experience this? I did a SMC reset (unplug power cord for 30 seconds, plug back in, wait 30 seconds then power on). I also did a PRAM reset and no luck. I even reflashed the card back to original non-EFI and the issue remains, I'm going to swap my apple 4870 back in and see if that helps, but if it doesn't, is there anything I can do? Am I doing the SMC reset properly?