It would probably give you just enough time to save work and shut down not much more than that.
Yeah but so far I have been lucky enough not to experience a full blackout. The system has gone through a lightning storm and a few power fluctuations however but not enough for the whole system to shut down.
Another question though, a figurative one. If I took my GPU out and 2 gigs of Ram, would that extend the "downtime of the UPS" to allow for an extra minute or two in any case of a blackout? Just a figurative question as i was wondering if these batteries in the UPS could handle that?