Re: HD 6950 Crossfire issues
Would check that you have a profile setup for BF3 and crossfire is enabled in there. Also have you got the latest drivers?
Re: HD 6950 Crossfire issues
Re: HD 6950 Crossfire issues
The profiles do not seem to appear under application profiles.
Re: HD 6950 Crossfire issues
Re: HD 6950 Crossfire issues
Re: HD 6950 Crossfire issues
I think you may have a CPU bottleneck. Easy way to tell is to lower the graphic detail in a 64-player game and see if FPS improves. If it doesn't make much difference, it's your CPU.
Re: HD 6950 Crossfire issues
Quote:
Originally Posted by
Phage
I think you may have a CPU bottleneck. Easy way to tell is to lower the graphic detail in a 64-player game and see if FPS improves. If it doesn't make much difference, it's your CPU.
Yes, the FPS increases vastly on low detail, over 100%. So you you think it is a processor? What AMD CPU would you suggest. A Bulldozer, phenom, or wait for piledriver?
Re: HD 6950 Crossfire issues
No sorry, that sounds like your GPUs are not functioning correctly. If you lower graphics and FPS increases then the hold up is in the GPU not the CPU.
Reading the entries above it would appear that you haven't installed the CAPS part of the software driver. Is that correct ? You can trell by going to the Control Panel, Uninstall software page, then looking to see if "Application Profiles" are listed with the little red/silver icon like Catalyst.
If not, you need to download them from here, and install them to get CF working. (links to W7 64-bit version)
http://sites.amd.com/us/game/downloa...n_win7-64.aspx
Re: HD 6950 Crossfire issues
Ok, so I have downloaded and installed teh CAPS, but it is nothing is showing up under the application profiles menu.
Screenshot: http://s18.postimage.org/x6x47l0ix/capp.png
upload images
Re: HD 6950 Crossfire issues
No they won't. The CAPS set default (factory) setups for individual games. Those profiles in CCC are for when you want to change the default profiles to a personal setup and save it.
Re: HD 6950 Crossfire issues
Score without CF: P4311: http://3dmark.com/3dm11/3698312
Score with CF: P5958: http://3dmark.com/3dm11/3698241
So is it battlefield causing the problem?
Re: HD 6950 Crossfire issues
Looks like it. Very similar to the other thread here.
http://forums.hexus.net/help-quick-r...but-where.html
Re: HD 6950 Crossfire issues
Update:
Furmark score with CF: http://www.ozone3d.net/benchmarks/fu...e.php?id=69472
Furmark score without CF: http://www.ozone3d.net/benchmarks/fu...e.php?id=69474
So CF is definitely working as it just about, but I guess it is just struggling with BF3 for some reason.
Re: HD 6950 Crossfire issues
Re: HD 6950 Crossfire issues
Have you tried a fresh install of win7 with the latest drivers?
I ran into some trouble when I was CF'ing my 6950s. CCC did not allow me to select the CF mode. I tried to wipe the AMD drivers off and install them again, but it didn't help, so I reinstalled the OS and everything was fine afterwards.
Re: HD 6950 Crossfire issues
Crossfire and SLI have massively varying effects for different cards and different games.
Firstly, try fiddling with all the settings on BF3 - change resolution etc etc.
Its possible that something that BF3 is asking the cards to do doesnt work well with your setup and is worsened by the Crossfire.
Second, update all your drivers. Mobo, GPU, storage controllers etc.
If you can try your cards in a friends system. That might help rule out any bottle necks. Though your CPU shouldnt be a bottle neck (as far as im aware).
Also, is this problem JUST experienced on BF3? Have your tried running other games that use the same (or similar) game engine? If its only BF3 try re-installing the game, or Ideally grab a fresh download of it.
Re: HD 6950 Crossfire issues
i had the same issues i upgraded my cpu to a PHENOM 2 X4 965 and issues were solved your cpu is rather under powered