SLI Mode Guide

get Nvidia inspector - I won't link it as there are ads on the site(s) Then load it

Create a profile for Skyrim Special Edition - and add "skyrimse.exe" from your install folder to it.

Start by clicking on the icon to load the profile editor

Make the New Profile

Type in "Skyrim Special Edition"

Use the "Dark Souls 2" profile for the DX11 bits
0x080020F5

If you experience weird occlusion ghosting (loading screen appearing in background) try this
0x080020F1 (The Witcher 3)

Here are the settings.
Red circled is what I changed. the others are some of the defaults that popped up on their own (blue/grey/green).

Add skyrimse.exe to the new profile

Click the button circled in red


Choose "skyrimse.exe"

go to SkyrimPrefs.ini in your \documents\my games\skyrim special edition\

Add the following lines to both [DISPLAY] and [GENERAL]

ifpsclamp=60
iPresentInterval=0

Start the skyrim launcher

and play the game!

if you get weird flickering either turn off AA


Or go back into the nvidia inspector and go to your skyrim special edition profile and make these changes



if you are still seeing some tearing or shimmering maybe the SLI connector is loose tap it very gently or adjust it very gently while watching the screen . i had this issue before with SLI GTX560ti cards before.

ALSO. i found that borderless windowed mode seems to have even less to no shimmering. i only saw the slightest judddering or at lest i thought i did during some rain in markarth.

also. i turned off the steam overlay .

If you want to see if your GPUs are actually doing stuff. click here


then you will see this magically delicious screen

(OPTIONAL) At this point I recommend putting in an ENB filter as you will have gpu/cpu power to spare ! unless you are running SLI GTX 260 on a c2d 2ghz potato

<3 Boris Vorontsov for ENB


Also

Please comment if you guys have some tips to fix all judder and ghosting on the screen aside from faulty SLI connectors (big problem with SLI imho).

If you just recently upgraded to SLI but have an older card. or you dont have SLI but have an older card after upgrading a single card this is for you.

I had a gtx960 lying around and I was researching some things and learned that with a dedicated PhysX GPU that you can achieve 25-40 % average increase in FPS in games that support PhysX.

so I did my research, looks like fallout 4 supports is, this is based on that engine so it's fair to assume it is supported.

I put in the gtx 960 and dedicated it (see image below).

then I loaded my special save in white run with tons of npcs and other s** going on that i consistiently averaged 25-35 fps in with plain SLI 970.

After adding the 960 and dedicating it to PhysX. i achived 35-43 average FPS in that same area.



stay tuned - I am just passively sifting through the internet to find out more about optimizing performance in gaming. there are some things related to disabling some services on the fly that might be useful too.

List of Games with PhysX Support:
https://en.wikipedia.org/wiki/List_of_games_with_hardware-accelerated_PhysX_support

Article about dedicated PhysX GPUs
http://www.volnapc.com/all-posts/how-much-difference-does-a-dedicated-physx-card-make