So, I have gone through a huge set of hoops and still no joy. I know this is not a "NEW" Issue but I'm asking for a strait answer here before I rage switch to nvidia...lets be honest, we have all thought about it at some point right?
I have two HIS HD 7950 cards that just wont gel with anything together.
I have tried every driver available, tried a clean install of windows 7 64 bit and purchased and installed Windows 8 64 bit (which runs pretty well actually).
I have updated all my Hardware drivers, my BIOS, checked compatibility, run multiple scans on all of my equipment...all green.
Here is a list of my issues/concerns/problems:
-Cards in crossfire gave BSOD in games in windows 7 and RSOD in Windows 8 for BF4. Sometimes just black screen and reboot.
-My cards are identic except for the fact that the BIOS versions differ from the factory (shouldn't matter from what iI have been told) and one of the cards reads a higher shader count than normal (a trending problem it seems but in theory should not cause issues...Its still on the table through). I have never messed with these cards.
-Whenever I disable crossfire the unused card fan ramps up to max and stays there instead shutting down.
-Lastly, one possible cause that I'm dreading is that the cards simply use to much power for my PSU. I am using an 800W Silent Pro by Coolermaster. It should supposedly do the job but i'm not sure how all the other components stack up with them all together. I don't know how I would test that honestly.
I know there are many out there with these same problems so If any of you magicians out there would care to offer some wisdom we are all ears.