Cant Enable CrossfireX

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Gnelson82

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Nov 2, 2013
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Guys I am completely stumped and need help. I am doing a new client build, and have everything installed and crossfire option is in CCC but it is greyed out with the message about my crossfire interconnect bridge isn't connected properly, therefore, I cant click enable.

I am trying to enable two Asus R9 270X TOP cards on an Asus Z87-Pro motherboard
I am on 13.11 Beta Catalyst drivers (my only option when using driver search or CD)

Both cards are seen by GPUZ, and device manager. Neither have the yellow exclamation mark
Plugging the second one in and booting up prompts the message about crossfire, but again, its greyed out.

Both work separately when plugging the monitor in and booting up, and scale from pcie3.0 @ 8x 1.1 up to 3.0 in GPUZ

I figured to save time for us, I am just going to list everything I tried to remedy this problem.

Reseated cards three times
Switched cards around the other way in the pcie slots
Flipped crossfire bridge in other direction
Tried another crossfire bridge (in both directions) (same brand)
Uninstalled all AMD drivers, safe mode driver sweep, and re-install CCC (three times)
No crossfire option exists in bios
Forcing Gen 2 speeds in bios for both cards didn't work

Installed both cards on my personal rig (rog) and exact same problem persists, so I don't think its a motherboard issue. (Both motherboards support crossfire)

Again, both cards work perfect separately, and both are recognized. Its just that actual enable button for crossfireX is greyed out. I don't know what else to do here fellas, and I am hoping someone is tech savvy enough to help fix this issue.

Who has suggestions?
 
this guide may help you - http://www.tomshardware.com/reviews/amd-crossfire-nvidia-sli-multi-gpu,2678-9.html

Conclusion

Installing the drivers for Nvidia graphics cards usually goes flawlessly, and the cards are immediately recognized as an SLI configuration. Things can be a bit more problematic with AMD, especially if you try to do too many installation steps at once. Ideally, the installation works instantly, but in case of problems you have to install the cards one by one, and then enable CrossFire.

Possibly try installing the cards individually by removing the primary card and booting only with the 2nd, then insert the top card. After that, then connect the xfire bridge.

This guide is 3 years old and AMD's fussiness with its drivers may still be the same. Some cases it all works from the getgo with everything in place and connected. Other cases needing to step by step.

Hope it helps.
 


I forgot to add that to my original post. I did reinstall windows with one card and install all drivers. I added the second card afterwards and the CCC popup came up when it booted asking me to if I want enable crossfirex. I clicked "go" and it took me to CCC where its still greyed out. Wasn't able to go that route either
 
did you try taking out the 1st card after installing drivers and boot only with the 2nd card?

Try this step if you haven't. Boot with only the 2nd card, power down and insert the 1st card, power up without the xfire bridge then power down again after loading windows.

Then connect xfire bridge.
 


I followed the above step. No success

screen1_zps1356b654.png~original


Didn't work on either setup here
IMG_0386_zpsc658d715.jpg


Connections are fine
IMG_0389_zpsf99ec602.jpg


The bridge
IMG_0390_zps4e312675.jpg
 
Been looking around on your behalf, found this. Maybe looking in the wrong section to enable xfire?

The crossfire setting should appear under the "performance section" in CCC. For me it's under graphics over drive and above CPU power. Both card should register in CCC before giving you the option to crossfire.

Another thing to try is msi afterburner or somthing similar to see if both gpu's are getting loaded.

I'd double check my pci-e connectors. Only one crossfire bridge is needed, so remove the second one if you have two installed. People have had bad crossfire bridges, it's a long shot but it happens.

I've always had better luck installing one card, booting installing drivers and then installing the second card.

As a side note, crossfire should only work in fullscreen mode.
 

These steps have already been tried above.
 


The performance and gaming tab both have the same options. And both have CrossfireX greyed out
 
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