Crossfire, no difference in performance?

[MokkaLokka]

Hello there,

I've just noticed that my new addition to my system doesn't do anything. In BF3 I have the same framerate with a single 7950 as I have with 2x 7950.

My specs are as following:

i72700K 3,6 Ghz
2x XFX 7950 3 GB "Black Edition" @ OC
16 GB RAM DDR3
1 TB SATA


futhermore I'm running Eyefinity, however there is still NO difference with a single monitor.

I've attached a screenshot of msi AfterBurner's monitoring. It seems as if it's only using one of the GPU's when I'm in the game, and when I'm windowing out (seeing the game as a little preview) the other GPU takes over. Oddly enough they aren't running at the same time.

All help is appreciated!

Sincerely
Mokka

 

[COLGeek]

What resolution are you gaming at?

 

[MokkaLokka]

1920x1080 on each one. That would be 5760x1080 in total

 

[Pinhedd]

I think there were some bugs related to running Eyefinity and Crossfire at the same time. Have they been fixed?

 

[MokkaLokka]

Pimhedd. As I wrote, I also tried with a single monitor. Same story

 

[babernet_1]

Go through all the options on your graphics card software. You probably have the second graphics processor disabled.

 

[Kari]

have you tried with 12.7 betas and latest cap profiles?
http://sites.amd.com/us/game/downloads/Pages/radeon_win7-64.aspx

edit ^^also make sure that crossfire is actually enabled.

 

[Xenturion]

I'd download GPU-Z and see if it reports that you have CrossFire enabled. Are you playing your games on Full Screen (Windowed) mode by chance? I found that with my previous CrossFire setup that CrossFire only worked when the application was Full Screen.

 

[MokkaLokka]

I've went through Catalyst a lot of times, and yes. Crossfire is enabled. GPU-Z also registers it as enabled.
I'm playing the games in full screen mode.

I'm trying to download the latest betas and caps.

 

[MokkaLokka]

I just tried the new beta drivers and it's the same. Only one of the card is getting used, the other one is going from 1 - 25 % all the time.

I've tried that both card did 100 %, but that might have been a coincidence. I did nothing different.

 

[MokkaLokka]

New info. Reinstalled the drivers. When I'm running Eyefinity both my graphic cards are working, but when I use single monitor it's only one of the cards. Odd.

Anyone?

 

[MokkaLokka]

I just ran a 3dMark11 test, and I think it's pretty good.

It seems that 3dMark11 uses buth GPU's. This is a problem with BF3, or how should I understand this?

Sincerely
Mokka

 

[amuffin]

Dem drivers are not workin.

 

[MokkaLokka]

It's a driver problem?

I've heard some good reports on 12.1 - should I try installing that one?

.. and is the benchmark score good?

Sincerely
Mokka

 

[Pinhedd]

I'm assuming you have the catalyst application profiles installed? If not, install them.

12.7 beta should come with 12.7 CAP 1

 

[MokkaLokka]

I've tried the BF3 profile without luck.

Could someone please tell me if the Mark3d11 score is as it should be?
I don't assume this is a bottleneck since I have a good CPU.
Appreciate the help guys!

 

[MokkaLokka]

Bump

 

[MokkaLokka]

I installed the 12.7 CAP.

I reinstalled everything once again, and now it works. I guess you were right. I was a driver problem. Guess 3rd time is the charm

Thanks everyone! Appreciate your help

 

[Mousemonkey]

Bump

Don't...

Bump posts


http://www.tomshardware.com/forum/283384-33-read-first