Networks Thread, Is my UPS dead? in Technical; My big APC UPS has tripped twice now.
We have the builders in. They've patched in the two circuits that ...
We have the builders in. They've patched in the two circuits that the servers use, and the power is flowing through. Though they're still working on the distribution board.
The UPS won't power on with all devices attached. No problem... switch a few off and it comes up. Very noisily though.
I don't know if this is a sign of the UPS being on it's last legs or something dicky with the power feed.
If it's noisy that doesn't sound good and from those symptoms does sound as if it's knackered but I wouldn't like to give a final answer until you have your power all sorted and they've stopped playing with it.
It could also be that the batteries are on their last legs and need replacing it should have a light to tell you this though.
If it is always regulating a higher than normal power supply then I suppose that could be a reason for it failing prematurely APC may be able to give you a better answer on that one.
Mine sounds like a Mr whippy machine when you start it up it goes "boof" and "bang" and then "bleep bleep bleep" (its a 3000VA smart rackmount one) it also shakes when it kicks in and blows the main disty board (but thats down to it being over used (it says 121% usage, run time -3 minutes, and yes it did show the - the other day!) So I have taken 2 proliants off it and its now just over 100%. But I would give APC a call, they were very useful last time I had dealings with them
Mine sounds like a Mr whippy machine when you start it up it goes "boof" and "bang" and then "bleep bleep bleep" (its a 3000VA smart rackmount one) it also shakes when it kicks in and blows the main disty board (but thats down to it being over used (it says 121% usage, run time -3 minutes, and yes it did show the - the other day!) So I have taken 2 proliants off it and its now just over 100%. But I would give APC a call, they were very useful last time I had dealings with them
I would be very careful when loading ups, the reason they have the limit is so that you don't draw too much power from the battery if it switches to battery mode. If you overload an apc when its in battery mode it will shut down immediatly - losing all power! I guess if you draw too much for too long, they get hot, then they build up gases in a enclosed metal case without room for expansion, worst case is it explodes!
It does shut off in 1 or 2 minutes, so I have to be very fast at typing as well as running to the other end of the building to get to them, it is due for change though so I am not too worried. Its not showing overload on its status now, as its only something like 3 or 4 % overloaded so its not warning overload now, so its better than it was, I think the main thing is never underestimate the power of a Proliant server, those Rackmount ones are beasts for power compaired to the tower ones.
We have just started getting the pricing in for a big APC Symetra setup (looking around £10K) to be able to run them for a few hours in a power failure as we have 2 staff areas (SMT offices and Finance Dept) on huge UPS's so the PCs there will run for a good few hours as well as the phone system so if we can keep the back end running then they can keep working.
Just need to get our office on a UPS now, then we can have phones that work in a power failure as well, blasted VOIP phones that are not POE powered, it means I am not contactable (I cannot decide if thats a good thing or a bad thing)