Dual 4870x2 Quadfire, Crossfire disabled?

[snedie]

Hey Guys,

So I'm just experimenting with some parts I have lying around the place ready to go on ebay tommorow when my 5970 arives. I came across a second 4870x2 from a friend, but I cant for the life of me get it to crossfire.

The two cards are identicle, Catalyst AI is enabled. GPUz says Crossfire is disabled and in crysis im only getting 15fps (As with single card) and 8k GPU score in vantage.

Im on the P55-GD80 motherboard, so yes crossfire is supported. Any ideas?

Thanks

 

[chaotic_uk]

you tried enabling them in device manager ?

 

[snedie]

you tried enabling them in device manager ?

I don't follow?

 

[Final8y]

What does it Say in CCC?

 

[chaotic_uk]

I don't follow?

check in the device manager to see if anything is disabled

 

[gareth170]

maybe psu issue.