I recently got two MSI R9 290X cards and am having troubles getting crossfire to work. I have both cards installed with power going to them. Both cards show up in Device Manager as function properly. Both cards show up in Catalyst Control Center, although one is under "Deactivated". I have tried uninstalling all driver (including using DDU), then only installing one card, installing the drivers, restart, shut down, then installing the second card. The option for the crossfire under the gaming tab in CCC just isn't there. It seems to be a common problem but none of the other solutions I found online seem to get it to appear for me. I'll list my specs and other information below:
MSI R9 290X Gaming (x2) (Not overclocked)
Windows 7 Home 64-bit, SP1
Crossfire option is not showing in CCC (15.7.1, also tried 15.10 beta)
Applications and Games
Intel i7-2600 (Sandy Bridge) (Not overclocked)
Display Device(s) and Connection(s) Used
Motherboard or System Make & Model
ASUS P8H67-V (Rev 3.0)
Motherboard BIOS Version
Unsure, can find out if needed
System Memory Type & Amount
G.Skill Ripjaw Series (4x4gb) DDR3-1333
PC Power & Cooling Silencer 910W
Not sure if anything else matters in regards to this problem but can include information as needed.
Thank you ahead of time.