If you want a UPS that will allow your system to "REMAIN ON" with this
backup power, that will be big bucks. You need to look into a business
Most home-based are designed to give you some time to shut everything
down in the event the power goes out-say 5 to 10 minutes of temp
As an example, I went to www.apcc.com
and used their UPS selector for
the USA. I built a modest Athlon XP system, giving me 20% more power
for future system growth and 1 hour for minimum time using UPS. It gave
me three choices of UPS:
The RS1500VA+, 78 minutes, 31% Capacity Used--$450 U.S.
The Smart UPS 2200VA, 136 Minutes, 14% Cap. Used--$819 U.S.
The Smart UPS 3000VA, 136 Minutes, 10% Cap. Used--$1100 U.S.
This is just to point out that a UPS that will allow a system to remain
on for any length of time is expensive, but for say $50 to $100 U.S.
you can get something that will give you a few minutes to shut down
properly if the power goes out.
Hope this is a start!!!!!!!!!!!!!