Crossfire woes

[James24]

Hi there

I just picked up a pair of 6970s for a crossfire but stumbled into some issues.

I first installed them onto my p8p67pro, booted up and crossfire worked fine.

So as it worked I disconnected the power and just screwed up the rest of the screws. I did take the cards out to do this but put them back in as I had them.

Now crossfire isnt even an option in the catalyst control centre but both the system hardware and GPU-Z recognise that there are two cards installed. One running at pci-e 8x and the other pci-e 1x :S

slightly confused as to why it isnt working now. Since i didnt change anything.

I tried reinstalling the drivers but no luck.

Anyone got any ideas?

Cheers.

 

[Cleeecooo]

Hi there

I just picked up a pair of 6970s for a crossfire but stumbled into some issues.

I first installed them onto my p8p67pro, booted up and crossfire worked fine.

So as it worked I disconnected the power and just screwed up the rest of the screws. I did take the cards out to do this but put them back in as I had them.

Now crossfire isnt even an option in the catalyst control centre but both the system hardware and GPU-Z recognise that there are two cards installed. One running at pci-e 8x and the other pci-e 1x :S

slightly confused as to why it isnt working now. Since i didnt change anything.

I tried reinstalling the drivers but no luck.

Anyone got any ideas?

Cheers.

try each card individually. if both work then just try re-seating them both and hopefully that should work. You did put the xfire bridge back on right? It's a longshot, but maybe switching the location of the x-fire bridge may helkp or even adding another, although it is unlikely to make any difference at all

 

[cmndr_andi]

I first installed them onto my p8p67pro, booted up and crossfire worked fine.

So as it worked I disconnected the power and just screwed up the rest of the screws. I did take the cards out to do this but put them back in as I had them.

I'm sorry, I don't quite understand what you did here.

Are you currently running with both cards installed (one in blue slot, one in white slot), one 6pin PCI-E power connection per card, one 8 pin (6+2) PCI-E power connections per card and both crossfire bridges installed?

 

[James24]

cheers guys.

It was the second bridge. First time I booted it up I only had one on and it worked fine, must have been fluke.

Thanks for your help

 

[MoodyB]

I thought you only need 1 bridge for crossfire ?

Maybe one of them is faulty.

 

[Surveyor]

I thought you only need 1 bridge for crossfire ?

Maybe one of them is faulty.

Correct, you only need one.

There must be something up with one of the connectors or the connection on the cards. Or the OP just didn't put it on properly.