second card crossfire

[winngames]

Hey guys, after spending ages trying to fix my crossfire setup to work with bf3 ive found that the only way to get it to work is by connecting it to the second card :/ how will the affect performance?

Thanks

 

[winngames]

the video output usually connects to the first card in a xfire/sli setup... i have it connected to the second card its the only way this game will work

 

[winngames]

You get no output from the top card just in BF3?

Connected to card 1 = 20fps, unbelievable lag

Connected to card 2 = 45 fps, playable

It only does this in this game so I doubt there's a problem with the cards and I've tried every driver for the past 2 years :/ so yeah wi connecting the hdmi cable to the bottom card effect gaming?

 

[winngames]

The weird thing is it runs better with crossfire off with a single card! Its really annoying as apparently the drivers and latest cap should have fixed this. I'm using d
river 12.3

When I did the test the exact same applications were open the only difference being the connected output of the card

 

[winngames]

Pop the case open and swap the cards round, see if that makes a difference .

Will do id be shocked if it did lol just gonna try your flash idea

 

[winngames]

Will do id be shocked if it did lol just gonna try your flash idea

Nothing :/

 

[winngames]

You using the CF bridges on your card? Have you got any other really taxing games you could test out like Skyrim or Metro 2033?
If the problem really is related to BF3 alone, reinstalling that might do.

Yeah I am and I don't unfortunately the only other games i really play is crysis and bad company 2 both of which run fine

 

[winngames]

Right click on BF3 in Origin and click repair install, could be worth a shot.

tried it :/

heres a video i created showing the problem