Is this normal GPU behavior?
A little background... I just installed a new set of GPUs (HD7970) running in Crossfire. I never used Catalyst Control Center until now (I only used the drivers, because I believe there was a compatibility issue with MSI Afterburner and CCC at one point, and I just kind of never jumped back into using it), so this problem may be related to CCC and not my cards.
The behavior that I never saw on my HD5970s (again, I wasn't using CCC, just the drivers) was that when only one card is being used (2d apps), MSI Afterburner and CCC show a temperature of zero degrees, as well as core clock and memory clock values of zero. Is this normal? I'm thinking that maybe CCC shuts down one of the cards completely when Crossfire is being used, and I just didn't see this before, but I want to make sure it's not a defect so that I can return it if necessary.
Case: Cooler Master HAF X RC-942-KKN1
Power Supply: Silverstone ST1500 1500W
Motherboard: Asus Rampage IV Extreme; CPU: i7-3970; Memory: Corsair Dominator Platinum 32GB @ 2133MHz
Graphics Card: HD7970
Optical: 2 x Lite-On iHAS424SATA 24X DVD
Hard Drive: OCZ RevoDrive 3 X 2 240 GB
Monitor: Samsung 1080P 120Hz 3D