Yes, this is the problem I mentioned above. As Carlo said, it's not flawless on older R9 cards, specifically Pitcairn (78xx and 270) and Tahiti (280X, 79xx, etc.), I do find it works fine on the 285/380 (Tonga GCN 3rd series). 10.2 is important as my cards run a lot cooler with less power, but that might just be because they're churning out rubbish. I might rebuild my rigs and put all the older cards in one rig running 9.7 and all the newer, stable stuff into another and run 10.2 - sounds like a great plan but I bet I'm more likely to end up with everything broken...