Excellent news! That’s good to hear. In many situations remains of older driver versions result in cards behaving strange, like fans spinning up etc. Please note that driver 15.7 is out now which supports numerous new features and adds Windows 10 support:

https://community.amd.com/community/amd-corporate/blog/2015/07/08/amd-catalyst8482-157-driver-enabling-a-premium-windows174-10-experience-and-so-much-more?