Issue With Crossfire, Though It Worked Previously.

[techang3l]

Ok, I love this site and it has helped me several times before by reading others posts. But this thing I am dealing with seems to be one that is still unanswered.
The Skinny:
I have a custom built computer with two Radeon HD 7770's and they are two different brands. One is a Sapphire Radeon, and other is XFX Radeon.
They both worked excellent and it would allow me to crossfire for the past year, but the Sapphire card kept causing my computer to lock up during basic gaming like League of Legends on Medium graphics. So I filled a warranty claim and got my card replaced, now for some reason it won't allow me to crossfire at all. Attached is a picture of the exact error message.
The part that stumps me is that it worked fine for over a year and didn't have an issue aside from the crashing.
I will note that the only thing I have tried is several different replacement crossfire cables, about 5 and none have worked no matter which orientation I have tried. Any help that it given is greatly appreciated.
Thanks to all in advance and have a great night,
Cody

Edit:
well let me add a little bit more to my background on this, after I received the replacement card I had decided to reinstall windows, same version and copy just a fresh install. This happened back in april, so not sure what the root cause was

 

[damric]

Uninstall drivers. Make sure both cards are installed. Re-install drivers. Win.

 

[techang3l]

ok, I have tried uninstalling, and reinstalling two times now, once with just uninstalling turning off and reinstalling, didn't work.
second time i tried uninstalling reinstalling and using driver sweeper to remove any remaining traces. after that I restarted and installed latest version of Catalyst control center.
But neither of them have worked.

 

[damric]

Verify both cards are present in device manager.

 

[techang3l]

they are, and strange thing is that in CCC under the information tab, one says primary card and other is labeled disabled card.

 

[damric]

It's a problem in the windows registry.

I would uninstall drivers once again. This time use an older driver.

Edit: Unless the other PCI lane is disabled in your motherboard BIOS. Investigate.

IF you can't find an option in BIOS, then just Clear CMOS to get to default settigns:

 

[techang3l]

that could be that case, any recommendations on the driver that might work?
also after a little poking around I have noticed that one of the bios versions for the card is 015.030.000.001 and other is 015.030.000.000

 

[techang3l]

I'm going to reset bios one more time and see if that is the case, though CCC says that they are both on and PCI 2.0 x8

 

[damric]

Ok

 

[techang3l]

so reseting the bios didn't change anything. and i have tried about 2 other older CCC with drivers, one of which was the old one from the first time i used the cards together.

 

[damric]

Make sure that the PCI power cable is connected firmly not only on the graphics card, but also the PSU. I have had it come loose on the PSU before.

Take out both cards and reseat them.

 

[techang3l]

I will attempt that in a moment and update as soon as I get back online

 

[techang3l]

ok, completely removed and reseated both card, unplugged all cables and replugged in and still no improvement.

 

[damric]

Stumped. I'll have to think about this for a bit.

 

[techang3l]

no problem, just feel free to respond, i have it set to email me when a response is posted. thanks for the help so far.

 

[damric]

I had crossfire rig a few years ago and this kind of crap would happen once in a while. I do recall going into regedit from the command prompt to fix some thigns but I forget almost all of that information now.

 

[techang3l]

seems like no one else wants to contribute to this topic... lol, anyone else have any recommendations that I can try or any suggestions on what to do now?