Unable to activate CrossFireX in AMD Vision Engine Control Center HD 7870

[Jikangire]

Hello and thanks for taking a look at my issue. I have two Sapphire HD 7870 GHz Edition cards installed in my PC as of today, however I cannot get the AMD Vision Engine Control Center to let me activate CrossFireX. Under the Performance tab on the left side, I select AMD CrossFireX. This takes me to the screen where I see two bullet choices: Enable CrossFireX (with a box underneath that says Enable AMD CrossFireX for applications that have no associated application profile), and a second bullet option that says Disable AMD CrossFireX.

Of course the first choice is what I want to be able to select, however this option is grayed out, as in it's not selectable. Further towards the bottom of the window I get the following message:

"The following issues have been detected for the current configuration.

The AMD CrossFireX internal bridge interconnects linking your graphics cards together are not properly attached. Both bridge interconnects must be attached. For more information, see the user's guide for your graphics card."

Ok so I've looked up and down and side to side on the graphics cards themselves and for the life of me I cannot see where I can connect a second bridge cable. Am I going blind here or does this graphics card only have one bridge interconnect? If that's the case how am I supposed to be able to enable CrossFireX through the AMD Vision Engine Control Center? Another thought I had was maybe I connected the cable the wrong way and I'll need to unplug it and flip it over, but if that was the case why can my computer see the second video card? Thanks for any help you can provide!


Specs in case you need them for troubleshooting:

EDIT: Change to Motherboard: ASUS Sabertooth 990FX/GEN3 R2.0
CPU: AMD FX 8350
Video cards: 2x Sapphire Radeon HD 7870 GHz Edition


Also I am now done with full removal of software/drivers, reboot, full reinstall of software and drivers, and reboot. Alas this did nothing to solve my problem though. The AVECC software (AMD VISION Engine Control Center) software still does not let me enable CrossFireX for the exact same reason. I've also tried powering the system off completely and flipping the bridge cable, as well as using a completely different bridge cable, and I still get the same issue. I've dug into my motherboard's manual to see if anything in particular has to be set in the bios for CrossFireX, but there are no settings that need to be set. It's a simple, plug in the card and attach the proper power cables as well as the bridge cable, installation. I'm running out of ideas of what to try next. If anyone has a suggestion, please let me know. Thanks!

 

[Alan Hudson]

Sorry to necro-post but this might save people some time, I have been trawling the net for hours to try and solve this and somebody suggested that I'd pushed the crossfire bridge on too hard and when installing to leave it off like 1mm or so. After all of the technical driver sweepings, card swapping, re-mounting, contact-cleaning, bios-updating, bridge replacing and other futile attempts I tried it was literally pull the bridge off a bit... I hope this saves anyone else the trouble I went through. Other-wise good-luck! (and yes I do feel silly) If you're interested this was 2 gigabyte R9 270 (R927XOC-2GD) cards on a 970a-g43 mobo.

 

[msdunkel]

Sorry to necro-post but this might save people some time, I have been trawling the net for hours to try and solve this and somebody suggested that I'd pushed the crossfire bridge on too hard and when installing to leave it off like 1mm or so. After all of the technical driver sweepings, card swapping, re-mounting, contact-cleaning, bios-updating, bridge replacing and other futile attempts I tried it was literally pull the bridge off a bit... I hope this saves anyone else the trouble I went through. Other-wise good-luck! (and yes I do feel silly) If you're interested this was 2 gigabyte R9 270 (R927XOC-2GD) cards on a 970a-g43 mobo.

Good necro. I had identical problem to the OP after reinstalling a 2nd 5850 that had previously been working in x-fire. My solution was to move the bridge from 1 set of connectors to the other. Go figure.