ok so my 900w ups i have had for 6 years now is starting to show it w limits. since i have gotten my 6950cf when i put them to full load im just under the limits of my ups and when i over clock them im tripping my ups. Im looking for a unit that is 1500w to 2kw so that i have head room and can put my 42 in plasma tv on it while im at it.