Sli flickering problem

So been playing the withcer 3 for a while and beat it. recently started a new game and tryed to mod it but when i did i got this crazy white flickering on my screen. i figured it was the mods. I uninstallled them but the problem remained. so i tryed a fresh GPU driver install but no luck. hunting around on the internet i found that my sli bridge could be the problem. it seems to fix most of the problem when i go from 60fps to unlimited but there is a very faint flicker that gives me a headache. i switch to windowed mode and it fixes itself but the proformance drops. I run at max setting with Hairworks off on dual gtx 980s.

I did remove a card to do some checks around the Motherboard but i have no idea if this could be a problem. I reseated it well with a nice "click" sound. Again i think it might be my sli bridge but im not sure yet. anyone have some similar happen to them?

Have you tried reinstalling Witcher 3? mods early in a games release tend to do some weird crap like modify other files etc. so removing the mod doesn't always work.

I got it figured out it was my sli bridge so i swapped it with another that came with my Motherboard.