5770 crossfire issue

[gav2pac]

Hi all,

just upgraded to
i5-2500k
Asus p8p67
corsair xms3 4gb

under CCC it shows one of my 5770 disabled and there is no crossfire tab. worked fine with no problems on my old mobo, i understand my new mobo does x16 x4, which shouldnt be a problem. in gpu-z, it shows the second x16 as an x1!! Both show up fine in device manager.

ive tried swapping them round, tried 2 different crossfire bridges, reinstalled drivers and also driver sweeper. also updated the bios on the mobo

Any Help much appreciated!

thanks

 

[old gamer]

Try installing them one at a time

 

[gav2pac]

ok il try that tomorrow, this is doing my head in now!

 

[gav2pac]

why would it show as a x1 slot though

 

[gav2pac]

still the same, any other suggestions?if not their going

 

[gav2pac]

Just to let you know, I cured the problem! By default the second pci e slot is set to x1 in the bios to save on system resources, can't believe I missed it.As soon as I enabled x4 it picked up crossfire straight away