Ripley,
Waterflow was good but apparently one did have a slight blockage, I think, which caused them to overheat. They said for me to ship them back and they would look at them. I know it wasn't anything I did on my end. Another thing they said is I might have gotten one that didn't have enough thermal paste when it was assembled. I won'tl know untilled they email me back the results of disassembling them.
I have to give cusps to EVGA tech support and the RMA peocess. I just hope the new ones that they send me are not defective,LOL.
LAWNDART