OT it looks like two outlets in one of my rooms arent grounded

[Toby]

Originally Posted by griffin8r

...Those UPS's still have 20 cent capacitors in them that blow when they've reached a surge load limit. Operating one on an ungrounded (which is what the OP stated) outlet will hasten its demise. Of course it'll protect your equipment, but you'll be buying new ones every six months because you still have no neutral on your circuit.

That's simply not the case in my experience. This entire house does not have grounded outlets. I've been using an APC ES 350 UPS that is now almost three years old and still functioning just fine.