I just got a second Sapphire 7870 OC to crossfire and am having issues with crashes. Each card runs fine when they are running by themselves, but when i play any games I crash when in crossfire. I've tested the setup with BF3, Sleeping Dogs, and GTA IV. Here are my specs:
Intel I5 3570K @ 4.2 GHZ
2X Sapphire 7870 OC in crossfire
8GB Patriot Viper
2X Samsung 830 128GB SSD in Raid0
I am thinking maybe it might be my PSU is too weak to handle the load or AMD driver (catalyst 12.8)issues.
I appreciate the help in helping me resolve this issue.