okay here are 20 sticks at freq 250 for more then 23 hours
one iffy by iffy 100 hw out of 82000 which is under .12 percent
19 perfect not bad.
the stud hub on the left has the best 5volt psu for efficiency (90% rating rated for 150watts with no cooling 200 watts with cooling) but it has to be outside the stud hub. So I pulled the board and built a platform to mount it all.
I am running 15 sticks
the stud hub with 5 sticks has an 85% psu rated for 130 watts
temps are 81 f
power for the 2 hubs = 128watts