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crossfire option unavailable, second adapter disabled

post #1 of 2
Thread Starter 
I have 2 4670 without hardware bridge on an ASUS M4A79XTD-EVO.
Crossfire used to work but not anymore after I updated the graphic driver to 12.1, I can't find crossfire option and 2nd card is shown under disabled adapter. I've had this problem before after updating AMD vision engine.... Is there a way to solve this problem?
AMD software has always be stinky....
    
CPUMotherboardGraphicsRAM
AMD Phenom II X2 550 BE ASUS M4A79XTD EVO ASUS EAH4670/DI/512MD3 G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 
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HITACHI Deskstar HD31000 IDK/7K (0S00163) 1TB LG HL Windows 7 x64 Samsung T220HD 
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Logitech Access COOLER MASTER eXtreme Power Plus RS-500-PCAR-A3 Antec Three Hundred Razer Krait 
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CPUMotherboardGraphicsRAM
AMD Phenom II X2 550 BE ASUS M4A79XTD EVO ASUS EAH4670/DI/512MD3 G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 
Hard DriveOptical DriveOSMonitor
HITACHI Deskstar HD31000 IDK/7K (0S00163) 1TB LG HL Windows 7 x64 Samsung T220HD 
KeyboardPowerCaseMouse
Logitech Access COOLER MASTER eXtreme Power Plus RS-500-PCAR-A3 Antec Three Hundred Razer Krait 
  hide details  
Reply
post #2 of 2
Thread Starter 
problem solved
uninstall AMD driver
reinstall AMD driver
leave only one card, boot check device manager ok
test the other card in main slot --IRQ conflict, delete device, restart
boot with both cards problem solved...
    
CPUMotherboardGraphicsRAM
AMD Phenom II X2 550 BE ASUS M4A79XTD EVO ASUS EAH4670/DI/512MD3 G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 
Hard DriveOptical DriveOSMonitor
HITACHI Deskstar HD31000 IDK/7K (0S00163) 1TB LG HL Windows 7 x64 Samsung T220HD 
KeyboardPowerCaseMouse
Logitech Access COOLER MASTER eXtreme Power Plus RS-500-PCAR-A3 Antec Three Hundred Razer Krait 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
AMD Phenom II X2 550 BE ASUS M4A79XTD EVO ASUS EAH4670/DI/512MD3 G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 
Hard DriveOptical DriveOSMonitor
HITACHI Deskstar HD31000 IDK/7K (0S00163) 1TB LG HL Windows 7 x64 Samsung T220HD 
KeyboardPowerCaseMouse
Logitech Access COOLER MASTER eXtreme Power Plus RS-500-PCAR-A3 Antec Three Hundred Razer Krait 
  hide details  
Reply
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