I thought you might be interested in looking at Getting SLI working in OA before official nVidia profile.
https://forums.bohemia.net/forums/topic/97655-getting-sli-working-in-oa-before-official-nvidia-profile/?do=findComment&comment=1643852
× Pasted as rich text. Restore formatting
Only 75 emoji are allowed.
× Your link has been automatically embedded. Display as a link instead
× Your previous content has been restored. Clear editor
× You cannot paste images directly. Upload or insert images from URL.