sli not work

[lidyan]

i updated graphic card drivers, selected sli/crossfire support in launcher menu. but nothing happened. i dont know why.

[RobCarter3]

Are you an Nvidia user? If so, try SLI compatibility bits 0x00000005 in Nvidia inspector. That seems to work for me.

[gnomechompsky]

There is another thread on this:

 

https://forum.il2sturmovik.com/topic/29255-sliupdate/

 

It seems that SLI is not working on a number of nVidia cards e.g. I have 980s.  

 

You can try the changing the SLI bits but beware of false positives - when I did this, RivaTuner started showing "SLI sync" but if anything my FPS was lower.  

[lidyan]

Are you an Nvidia user? If so, try SLI compatibility bits 0x00000005 in Nvidia inspector. That seems to work for me.

Thank you for your reply. I will try it later. by the way, if there is any bad effect to other games just like warthunder after i change the value from 0 to 5. Thank you. 

There is another thread on this:

 

https://forum.il2sturmovik.com/topic/29255-sliupdate/

 

It seems that SLI is not working on a number of nVidia cards e.g. I have 980s.  

 

You can try the changing the SLI bits but beware of false positives - when I did this, RivaTuner started showing "SLI sync" but if anything my FPS was lower.  

Thank you so much, it quite useful. Thank you.

[Traz]

Any one figure out what profile to use for AMD cards? cant seem to get one with smooth gameplay. Stutters like crazy but has 60 flat fps.

[Tag777]

I have two Nvidia GTX 970 and I also got an improvement in FPS, but the stuttering is really annoying. Only compatibility bits should be modified in Nvidia inspector?

[lidyan]

Everything's perfect after I change 0 to 5 with the Nvidia Inspector. But I don't know why I got nearly the same fps whatever I selected low, balanced or high. and both gpus were above 80℃, I thought I got no more than 55℃ when running warthunder. 

[=TBAS=Sshadow14]

Stuttering cause mostly by Distant terrain x 4 and new clouds on Ultra Preset

X4 Terrain Require 4GB Vram tho can still stutter if other settings push you 4gb card over

[Tag777]

Well, I did everything the community members said to fix the stuttering in SLI mode, but nothing works for me.

I change the compatibility bits from 0 to 5 in Nvidia inspector, delete the starup.cfg file (I do not have a terrain.cfg file in none of the game folders but apparently it was working equally without it) but was no use.

Finally, tired of the issue, I searched and found an alternative solution: I disabled SLI and put one of the cards exclusively to work with Physx and: voilá!! the stutter is gone and my FPs are now over 100 

[Jarza]

Same here. Sli just wont work. I can make game use both cards but stuttering is so pad that one card is smoother.

I have gtx 980TI cards.

Edited May 25, 2017 by Jarza

[Guest deleted@83466]

Well, I did everything the community members said to fix the stuttering in SLI mode, but nothing works for me.

I change the compatibility bits from 0 to 5 in Nvidia inspector, delete the starup.cfg file (I do not have a terrain.cfg file in none of the game folders but apparently it was working equally without it) but was no use.

Finally, tired of the issue, I searched and found an alternative solution: I disabled SLI and put one of the cards exclusively to work with Physx and: voilá!! the stutter is gone and my FPs are now over 100 

 

Pretty sure that IL2 doesn't use PhysX.  If SLI is disabled you're running on one card.

[Jarza]

Is there anything that developers can do with this SLI issue?

[Traz]

AMD crossfire any amd profiles that work?