Helldivers 2 SLI updated

[Kozary]

On my post on Guru3d the game works fantastic in SLI being on the same engine as vermintide 2. Some worlds have flickering smoke/light/textures. If you are not setup correctly for SLI you will lose geometry etc. and have unplayable flickering.

Only really recommended for experienced SLI users. Some notes included for tuning your own bits.

https://forums.guru3d.com/threads/kozarys-quad-sli-rtx-nvlink-thread.435830/page-17#post-6209291

[Impaler]

I tried this profile, and began spawning under the world or my friend would be above in the air. Tried without and back to normal

[Kozary]

i got that too when tried joining other lobbies on occasion. Was going to revise bits as those where proof of concept/mostly untested but ended up refunding the game before i could. Would not be hard to get perfect from there.

[Kozary]

Profile has been updated and fixed. Game has very good scaling and no graphical issues with SLI.

[Twitch/Antisnake]

theres no nvidia sli profile or how do i edit this one?

[Kozary]

Originally posted by Twitch/Antisnake:

theres no nvidia sli profile or how do i edit this one?

nvidia inspector

[Impaler]

Some further testing has provided some better results personally for geometry being a little messed up on deployment screen, some very minor flickering on deployment map.
1 instance of flickering ingame which resolved itself.

Compatibility Bits : 0x8C0128F5
dx10/11
Broadcast dx1x : 0x00700801
Copy Engine Enabled
SLI Specific Hacks : 0x80000000

Many thanks Kozary for the initial starting point and inspiration to have a play with it, learning from scratch just for this game get the use out of the extra 2080ti.

[Kozary]

Hah nice i just added that 1 in the compatibility bits post as i found a had a regression in my sli bits from v3 to v4 i found it helps a lot with the volumetric fog had that bit enabled in my other rig for some time and noticed it had less flickering in realtime to my own pc. But does not fix the flicker when the time of day changes or on certain textures. It's honestly very hard to track down flickering across different times of days and planets.

I'll see how the hack bit you found goes but i found that bit effects the geometry significantly and lets you run different numbers in the broadcast.

Cheers.

[Kozary]

Tested SLI Specific Hacks : 0x80000000 and its no good on my end seems to introduce flickering and the guard dog rover shoots backwards across the entire map when my team mates have it

[JFnotKennedy]

what version of NV inspector do I need ? Dosn´t seem to work for me

[Kozary]

Originally posted by JFnotKennedy:

what version of NV inspector do I need ? Dosn´t seem to work for me

You are doing something wrong. What version you use is dependant on how old of a driver you are using. But really the newer versions working fine for me

nv driver 445 works in dx12 for SLI with nvlink and the new drivers are fine for dx11.

[Kozary]

can confirm still working perfectly fine in 2025 even after all the updates.

2080ti about the same fps as a 4090 running the game "as is"