Overclocking and Crossfire

[Hady]

Hey guys and gals, I have two ATI 6950's both using a modified version of their own bios with the shaders unlocked to 6970 spec. Currently they are at stock core and memory speeds.

One of my cards will overclock to 880/1375 no problems and the other will only go to 880/1325 (even with the voltage set to 1.3v im not sure why it wont go any further)

My question is what happens if I run these cards in crossfire with the overclocks set to 880/1375 on one card and 880/1325 on the other?.

Many thanks and I look forward to your replies.

 

[Phase]

You need to use AfterBurner (but it sucks with Xfire) Or trixx and these will let you set the clocks per card.

I use Trixx
Also Disable ULPS (Its power saving rubbish)

 

[Geeman1979]

I think they will both run at the lower speed,so best off just running them both at 880/1325 to avoid problems.

 

[DazQ87]

If you use afterburner there is a tick box that says 'synchronize settings for similar graphics processors' which allows you to apply your overclock settings to both cards.

 

[Hady]

Thanks guys, This place has always been good to me!

 

[postmanfw]

Cheers for the tip about trixx as ab wont overclock both my cards