Questions tagged [ups]
A UPS (uninterruptible power supply) is a device used to provide instant backup power to critical systems for safe shutdown in the case of a power outage.
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Is PFC Sinewave important when buying UPS for high end computer?
Is PFC Sinewave important - What I found
I'm in the market for a new UPS (Uninterruptible Power Supply) for my home/office setup and trying to decide if "PFC Sinewave" (from CyberPower - ...
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How can UPS turn computer on after it was shut down by power loss?
Suppose computer is connected to UPS and UPS is connected to the computer with USB cable. Some software runs on the computer, which is capable to shut it down gracefully on power loss.
Suppose power ...
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Linux Mint Laptop (With a UPS) Turns Off When Power Goes Out
I had a Linux Mint (MATE) laptop with a working battery, but just to be safe I also bought a UPS backup, and plugged the laptop into it. When the power went out, the laptop stayed on, and life was ...
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10-year old Sven Pro 1000 UPS turns off if load is low - batteries are good
I have a Sven Pro 1000 UPS which is 10 years old. However, it still works good after replacing its batteries twice. The only problem is that it automatically turns off if the load is very low - for ...
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APC Back-UPS works fine during power outage but turns off when power is restored
I have been facing a problem with sudden shutdowns of my PC without any warning. When this happens, the APC Back-UPS (RS 500) emits a long constant beep and the indicator light of the UPS is off. This ...
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APC UPS Shutting itself off after a few seconds
I have an APC Back-UPS 600 UPS. When I turn it on with no load, the light blinks green while it emits a constant tone. It then clicks and the light turns off, but the tone continues. I can make the ...
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Unable to send email from APC UPS PowerChute
I have the APC 1500 Smart UPS with SmartConnect and the PowerChute Business Edition server edition 9.2 Build 604. I had configured the email to use Gmail to send me notifications when there were any ...
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Advice in how to properly maintain my UPS
First of all, I hope this is the right place to ask. I have looked around and this seems to be the correct place inside SE.
I do not own a server but I use a really old APC Smart-UPS SU1000INET for my ...
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What would cause a fully powered off workstation to turn itself back on?
I have an old workstation that I want to keep fully powered off when I'm not around. Just recently I came home to find it powered on, even though I didn't touch it. There is no one else around (and ...
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prevent nut from constantly typing on command line (Debian)
I have been using Debian for a short time and when I login with my poor ssh user, there is a process that constantly writes to the console and makes me nervous. I get this warning message from nut:
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Modem recycles when power goes out although it's on a UPS
I have a UPS with my desktop, server, router and modem all on the backup side but when the power flickers, the fios modem still powers off. It is the only thing that powers off. Anyone know why or ...
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How bad are minor power fluctuations for computers?
Whenever a large appliance or power-tool is turned on where I live, such as a refrigerator, vacuum, chainsaw or similar, light-bulbs will often dim down for a fraction of a second before returning ...
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Synchronizing shutdown of several computers on one UPS
With a single computer working from a UPS, a power outage would result in the computer shutting down, followed by the UPS shutting down. The UPS would then not supply power to its outputs.
With a USB ...
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Why is my Eaton UPS beeping?
I just received a new Eaton UPS (Eaton 3S 700). I plugged it to a wall socket and connected a small tower server, a switch and a router. They work fine.
My problem: the UPS is beeping continuously and ...
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How to silence "bad battery" alarm in a APC Back-UPS 550 UPS?
I am using Ubuntu and I have an APC Back-UPS 550 uninterruptible power supply that's worked pretty well for several years.
However, over the last year, it's "bad battery" alarm has routinely ...
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