I'm using an EVGA BR 600W 80+ PSU
Since I am using 2 Controllers for the 6 fans I have both controllers on their own molex cable.
I have nothing else connected with molex aside from the 2 controllers.
One thing I did notice, is when I moved two of the fans to the other controller started having the issue.
So previously, Controller Number 1 with 5 fans had the issue, then I moved to of those fans to Controller Number 2 and then issue no longer affects Controller Number 1, but does affect Controller Number 2.