Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
all you need to do is install the latest nvidia drivers and enable physx on your gso, that's it.
you have two different cards, so there is no need to worry about enabling sli. your gtx will process graphics while your gso will work as a dedicated physx card.
Thats what I was trying to get across in my first post. Just because you have two Nvidia card's doesn't mean you need to connect them with an SLI bridge. That would only be the case if they where the same card and you where using them for....SLI. You're not, so just plug both cards in separately.
Make sure your running the newest drivers, as older drivers as older drivers were reported to not "see" the card if a monitor was not plugged in to the second card.