SLi now working. some minor issues
 

Overall, thanks. Game works with SLI on.

2 issues to report,

1. Game resolution must match desktop resolution.

2. Load allocation is uneven, gpu1 loads to 99% before gpu2 kicks in. I'm not sure if this is how SLI is suposed to allocate resources? But see my image below
http://s9.postimage.org/z1ssryghttp://s9.postimage.org/z1ssryg0t/clod_SLI.jpg0t/clod_SLI.jpg

3. Vsync does not appear to work. I'm getting massive frame tearing. (2 x 570 GPUs)

The second card is just going to idle untill we get a working SLI profile

For me no more CTD, but I have worse stuttering than before. FPS down slightly but both cards are working evenly.

Card temp's running at about 55deg + or - 2deg (Asus card running cooler than the EVGA, always has) percentage of use about 65--70% both cards (this appears to be up slightly) but I certainly have Sli operating again (EVGA precision tool readings).

No frame tearing for me ( not noticable anyway).

Trialed with single player London Attack (45---85fps depending on action, this is about what I was getting before).

Still using my Nvidia Inspector profile which until we have official support seems to be ok for me.

agree Pstyle: I experience the same. SLI works anfd gives performance but tearing is unacceptable. Lets hope for a working profile from Nvidia soon.

Winger

I'm getting better frame-rates with SLI disabled.
Improvement is about 10-15 fps.

The game works with SLI, but it's currently better for me with it turned off.

agreed. hopefully a profile will finally fix it for all of us.

winger

try with a massive windows update...worked for my rig (win7 and sli). Also try the latest versions of microsoft visual c++ (2008?2010?)...
good luck

edit: and try repeating the update searching procedure many times after every update install 'till it can't find no more updates avaible...
edit: No fps increase with SLI enabled, a little decrease (3-6fps) but no more stuttering, the game seems smoother to my eyes...It seems to me that the same amount of information once handled by a single gpu is now shared
edit: An evident fps increase with AFR or AFR2 enabled (10-20fps) but a huge amount of stuttering coming out, specially with the AFR mode on...
SLI IS STILL DEFECTIVE

Or maybe try balancing on your head a rotating counter clockwise while drinking a glass of milk.
Seriously though what we really need is a good sli profile

Btw, afr and afr2 should produce microstutters by its nature and should be unuseful for newer games, as far as I am informed. The dynamic texturing methods and various effects should make afr amd afr2 obsolete, because it works different and is not really compatible to some graphics featires (e.g. volumetric clouds, dust...).

I think, that this is, why you get the stutters. It could reduce in this mode, if you experiment with switching off some features (which is not intended by you anyways, I think). ;)

Would be interesting to compare generally a performance increase with the same settings, and not switching to higher resolution or more graphic details. Otherwise this sli is like I already mentioned. More fps, but more problems... :)

I can live with my 50-70 fps average on my unboosted card ;)

yes, we need a good sli profile.
Updating Win7 I solved the stutter problems using a default NVIDIA SLI profile (no AFR on NVinspector).As I've written....no need for other comments.