XFX 7770 Crossfire Setup - Screen goes black and starts flashing on game startup

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Cowtastrophe

Honorable
Aug 8, 2013
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10,530
So I got a new 7770 off Amazon in the mail today and I setup the crossfire configuration and everything went fine - Radeon Settings reads the card, both cards work fine standalone... But when I have the bridge connected, and enable Crossfire, then start up a game (say Counter-Strike: GO for example), my main gaming screen just goes black, then my two other monitors on the sides start flashing on and off. I've tried switching the GPU spots, I've tried switching which GPU the cables are plugged into, tried different profiles on Radeon Settings, and I've tried looking for help online but CANNOT FIND ANY. I'm sure I'll get asked so here are my specs:

CPU: Intel i5-3470 @ 3.2 GHz
GPU: 2 AMD XFX Radeon 7770
PSU: Rosewill 500w Gaming Power Supply
RAM: 8GB DDR3
MOBO: Asus z77-a
 
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XFX_Support

XFX_Support

Distinguished
Aug 11, 2014
368
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19,360
Hello,

There are no known issues like this, so my guess is the 2nd card you received isnt "new" 4 years old, but probably used or refurbished. It may have existing issues. try this...

Tutorial for proper driver installation.

1-Load windows with only your primary graphics card plugged in.
2-Disable any and ALL anti-virus/malware protection.
3-Download and Run the latest drivers from AMD.com (Omega drivers do not have Uninstall built in, you have to do it through add/remove, which is okay)
3.5. DDU Now has the best uninstaller for your issue: http://www.guru3d.com/files-get/display-driver-uninstaller-download,9.html
4-Choose to Uninstall/express (may not be available in newest version, download an older version) the existing drivers, and AMD folder
5-Restart the computer.
6-Disable any and ALL anti-virus/malware protection.
7-Run the latest drivers from AMD.com
8-Choose to Install/Express the drivers
9-Restart. Confirm settings are working in windows.
10-Shutdown and add 2nd/3rd cards for Xfire.
11-Respond to this ticket if you have any further questions
** If you have nvidia drivers on your computer, you might need to run the Uninstall feature of Nvidias driver as well.

XFX Support
 
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