Hi, all: Sorry for my poor english. I'm using HD7970 Crossfire. The GPU1's Core and GPU Memory clock will descend to 300/150 when the card is idle, but the GPU2's Core and GPU Memory clock always running at 925/1375. I try to change catalyst from 12.3 to 12.7 beta, but no use. Even in the same frequency (925/1375), the temperature of GPU2 is higher than GPU1, I don't know why. And, MSI Afterburner always miss GPU2, only can monitor the GPU1. The attach is screenprint on GPU-Z 0.6.2. Anyone can give me a help, thank you.