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.
Which pin? I think 2 are unused but someone may wanna correct me.
Lower left is nrst, which i think is the one you're describing. Im pretty sure but not positive on that. As for its use i think its for powersaving, but dont quote me on that. Thats just a guess.
5 over from the botten left if you're looking at the motherboard?
Either way if its working fine dont worry just dont be surprised if it wont copy over ide buses or some such. Some sectors of the hard drive could be unreadable, but if it boots windows you may be free and clear. Depends on how finicky the hard drive is, the motherboard, your drivers, etc.