Is there any way to use a UPS properly when there's no ground wire in the outlet?
I have a GFCI setup and an outlet with a ground wire but it's not a real ground (apparently; I don't quite understand GFCI). My UPS's that have a 'wiring fault' light indicate a wiring fault (lit up).
My UPS's will sometimes give out (and my computer's reboot), even on low wattage load (like less than 50%), and I suspect it's due to not having proper ground. But they give out even when there's no apparent surge/brown out, no thunderstorm, etc. Should that be happening? Would this not happen if the outlet were properly grounded in a modern way?