Yes, I did overclock it.....the PSU still works just fine.
options do you have another one?
if you have a working one let us know.
for now plug in one board on the s-3 and detach the other board from the controller. if it works you found the dead board.
if it does not work plug that board in and unplug the other board if it works you found the dead board.
if neither way works you need a second miner that fully works.
pull the controller from it.
pull the controller from the dead machine
attach the controller to the good machine and plug in only 1 board .
it that board works plug in the second board if it works you have 2 good controllers and 2 dead boards.
if neither board from the good machine works with the controller from the dead machine you have a dead controller.
if you want to complete the testing take the good controller and attach 1 board from the dead machine to it if it works that board is good.
then attach the second board to it if it works you burned up the controller not the boards.
