Running a sapphire and asus 3870 in crossfire

[Bladerunner2019]

So with my new setup I decided to go crossfire, and bought the sapphire radeon 3870 intending to buy a second, but instead got the asus card later on instead.

The sapphire card: http://www.newegg.com/Product/Product.aspx?Item=N82E16814102719

The asus card: http://www.newegg.com/Product/Product.aspx?Item=N82E16814121233

but when I've tried to run games in crossfire I get these scan lines that I couldn't seem to remedy. I updated the display drivers and all but it didn't help. Removing either one of the cards and just using one seemed to solve the problem.


I know the asus card is supposed to clock about 100Mhz faster than the sapphire, but I was just under the impression that I should be able to plug them both in regardless...

Will I ever be able to run these two in crossfire? or is it pretty much infeasible given that they're made by separate manufacturers?

plz help

 

[godless]

if you just bought them then maybe you can exchange it so you have two of the same kind. but first of all i would try to decrease the asus speed from 851 mhz to the default of sapphire one 776 mhz. try to have them both at the same speed.

 

[jitpublisher]

They should work, the speed difference might be causing some problems though. godless made a good suggestion, about all I know that you can do as well.