On Thursday 04 June 2009 08:34 am, Randall Whitman wrote: > Anecdote: yesterday, in a power blip, > my workstation, on APC Back-UPS ES 350, stayed up; > employee workstation, on OptiUPS Voltage Stabilizer 1200 (Buck unlit, > Normal mode green, Boost amber) rebooted.
Hmmm... check out the OptiUPS unit. I've noticed a pattern over a few years. My Smart-UPS 350s have occsionally failed and reported bad-battery after the fail though not before. Since this doesn't happen every time there's a power failure and since the unit which failed went through multiple "blips" (as you call them) yesterday, I think it's really a borderline not being properly noticed and reported by the system until it's "more" dead. And this has repeated over the years I've had the unit; that's why I now use a much bigger one (sorry, no model number on the front and way too heavy to turn around and look at the back without better reason <smile>) to run my two desktop systems, one monitor, one switch, and even printer. Since it's happened with more than one unit (all bought from the same factory-authorized rebuilder) I'm guessing it's just an old design that never worked well; I suppose it's time to buy new. Rather than three small ones, I'm probably going to buy one big one, this time a Back-UPS with stepped square wave output but lots of features <smile>. I've got everything back up now (the big unit has power to spare; it's got lots of indicator lights to tell me so): Battery good: all six bars green Load: only one third of maximum in use (two green bars out of six) I'll do more within a week or three, so I have maximum staying power in case of failure, but I'm not worried today or tomorrow. And that's a good thing. Of course based on the article I linked to yesterday I'm wondering if the stepped square wave input is okay for the printer (HP OJ Pro L7680), but I'll read the UPS warranty carefully before buying; if they don't exclude printers from warranty, I'll buy that. Jeff -- Jeff Lasman, Nobaloney Internet Services P.O. Box 52200, Riverside, CA 92517 Our jplists address used on lists is for list email only voice: +1 951 643-5345, or see: "http://www.nobaloney.net/contactus.html";
