Can't get crossfire to work! Not regonize 2 card. sabertooth z77

[tokitz]

Hi there guys!
I have a slight problem here i've been running crossfire on my XFX 7970 for like 3-4 months now, no problems at all. But now i can't seem to find my second graphics card, when i'm in the OS.

What i've tried:
Check both cards are working induvidual in both pci ports and no problems there.
Reinstalling drivers 100 times. (re-installing everytime i tried a new port with a new card)
Reconnect all cables
Blew some air in the pci_e ports
tried changing crossfire bridge (they are not broken tried em in a friends system with my cards)
Cleaning the graphic cards with some air (not high pressure) (And not with a vacuum cleaner)


I really don't know what to do now beacause all my cards work and all the pci_e ports work, and yes i have enough power. u have a HX1050 PSU.
All the fans are spinning no problems there, and no visual damage on either the MOBO or the Cards.
I just can't find the second card when i'm in Windows, it's just gone!

What shall i do?
Please help!

Full specs:
Mobo: Asus Sabertooth Z77
GPU1: XFX 7970 black edition
GPU2: XFX 7970 black edition
PSU: Corsair HX1050
RAM: Corsair Vengance 2x8gb
HDD: WD 2TB (no idea which one)
CPU: Intel i5 2500k (not overclocked)

 

[mauller07]

its most likely a driver issue, i fixed this problem for someone else by cleaning away the old drivers.

grab driver fusion and the latest amd beta driver.

uninstall current amd driver and dont restart.
run driver fusion and clean the amd drivers then restart.
install latest drivers again, only install the display,hdmi and catalyst.

see how this helps.

 

[tokitz]

I'll try that out, but i've tried the beta drivers last night and it didn't work but i'll give it a go, and come back with the awnser on how it went

 

[tokitz]

Well i still havnøt figured it out...

 

[mauller07]

update your bios to the latest