Basically, yes. Initially it was via a UPS so it involved turning the output of that off, which was driving the main machine, one of the monitors, which was the one with the problematic cable, the phone, and an ethernet switch.

Since I've pulled it out everything is plugged directly into a wall outlet. I'll have to put the UPS back in a few days, it's there for a reason smile

And I agree, there should be a blocking diode or FET or something along those lines at the very least. But, what can you expect from some fly by night company like AMD... wink

pca
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Experience is what you get just after it would have helped...