Got 2x5970; a Diamond and a Sapphire card.
Diamond is definitely working fine.
The Sapphire seems to be giving me issues.
Tested my PCI-e slots by swapping the Diamond card around so they're fine. 1200W PSU so it's not a power issue.
Did a fresh install of Windows to be sure.
I can boot into Safe Mode fine with both cards in.
Safe Mode Device Manager shows this (before installing Catalyst):
I was able to boot into Windows fine without Catalyst Control Center and drivers installed.
After installing Catalyst + drivers, my screen just went completely black with a blinking underscore cursor.
If I try to restart it'll just either hang at the Windows loading screen or just say that there's no signal getting to my monitor.
Device manager shows this (after Catalyst installed):
Anyone experience similar issues before? Is the Sapphire card bad? Or is it because I don't have a Crossfire cable/dummy plug set up?
Bought it off a guy on Craiglist (non-local so I used PayPal). Tried texting the guy to see if he has a receipt and whether or not the warranty would still be valid if it's the card. Haven't heard back yet so will give him a bit before I decide whether to dispute with PayPal or not.
I've been messing around with it for several hours and I'm kinda annoyed since I didn't get any mining done today with just the solo card.
Pretty sure if I remove the Sapphire it'll boot fine. Will try and remove all the drivers again, pull out the Diamond, and install Catalyst with just the Sapphire but I think I already tried that but will again to be sure.
Edit: Yup, booted fine to Windows, after installing Catalyst and restarting it hung at Windows loading screen... Was able to boot into Safe Mode fine right after though. Is it a driver or hardware issue?