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.
Most newer boards don't really need to be put under water since they do not run very hot. When they are under water it's most likely for looks and having the extra money to spend for it. If you really want to cool it you'll probably have to find something universal.
UD4 has no NF200. As tangoseal said, that's the main reason for wanting to watercool motherboards now. The UD4 doesn't get appreciably hot. IIRC, the PCH is listed as having something like a 10w TDP.