[slijin]

Originally Posted by Intel i7

This happened to use when someone accidentally wired a jag backward. The clicking noise is coming from the breaker on the Power Distribution Board. You should see a red light on the side of the PDB too next to the port where the jag is.

This should absolutely not happen. Red lights on the sides of the PDB will light up if and only if the terminal blocks are connected to something while the connection is unfused.