Card Types
HD5670 - tested (RaTTuS)
HD5750 - tested (SteveFL)
HD5770 - tested, probably no fan control (Raigekisai)
HD5830 - tested (grue)
HD5850 - tested (phelix)
HD5870 - tested (Beremat)
HD5970 -
HD6850 - tested (ujin)
HD6870 - tested, limited functionality with v0.9.0b? (mike85123, OCedHrt)
HD6950 - tested (coznefx)
HD6970 - tested (Jazkal)
HD6990 - tested (proudhon - thanks a lot for your support!)
I'm in the process of testing this for a Win7x64 system running 4x6770 (Sapphire). Everything seems to work fine except the program will not detect the fan speed of the cards (reports N/A), nor allow me to set the fan speed. This is peculiar as I can set and monitor fan speeds with the ATI Catalyst and MSI Afterburner tools.
I'll post program output later today as I am not at the computer with the hardware right now.