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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How to shutdown macOS / mac OSX from Network UPS Tools client - NUT
I’m looking for help in shutting down my iMac on detecting a power failure while running from a UPS.
My setup is an APC SMT750i UPS, powering two Synology NASs, and iMac plus the network kit (router, ...
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PowerSoft netclient on Proxmox
I'm trying to run powersoft netclient (ever ups soft) on a node (kernel Linux 6.5.13-1-pve) inside proxmox ve 8.1.3. Installation goes smoothly, but trying to start powersoft.service displays error:
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Adding another UPS battery in parallel, to increase runtime/VA capacity
Can one parallel two identical batteries and connect to the UPS, and will it act as a single battery of double the capacity? Or is there a problem electronically with it?
According to this answer, ...
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I am stuck with a message popup in UPS software
I have bought a UPS. This came with a mini CD containing software for both Linux and Windows.
You can find it here (Energenie: EG-UPS-PS2000-01):
I have installed all related softwares, namely Nut, ...
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Luminous UPS turns off automatically when system left idle
I have Luminous UPS. When my UPS is on battery mode and system is idle it automatically turns off my computer. I have made sure it’s not due to low battery because when I start the UPS again it works ...
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How to disable power on/off beep on UPS (CyberPower CP1350PFC)
I've had a couple UPS in the past, but the beep on this UPS (CyberPower CP1350PFCLCD) is a little obnoxious and loud.
The "mute notifications" button only stops it from beeping during a power outage, ...
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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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UPS power(w) vs PSU power?
How much power(w) UPS must be for PSU( input 220V/10A)?
If UPS rated power is smaller then PC drain power before power loss, will the UPS shut down or what will happen?
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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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Best practice with NUT in multi server, multi PSU, multi UPS setup?
what is the common practice in powering and configuring multiple servers with multiple UPS when each server has two PSU?
Let's say I have 3 racks, each with it's own UPS and set of servers with two ...
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My computer runs fine on inverter power but can't turn on from off state. Will using an UPS between computer and inverter fix the issue?
A 900 watt sine wave inverter (with battery) is connected to mains. The PSU of my computer is 1000 watts. When there is power outage, my computer runs perfectly fine. But if it is already off, I can't ...
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PC restarts on power outtage despite having a UPS
Unfortunately where I live I do not have 24/7 electricity.
My new PC rig which is considered to be a high-end(gaming)
system is connected to a brand new APS/UPS that have these specs:
DC-AC ...
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When do I need a pure sine wave UPS?
I would like to buy a rack UPS that would support all the IT related electronics in a SOHO room. This include switches, routers, PCs, servers, NAS. During my research I found out that there are ...
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Is the APC BR700G UPS (or similar) compatible with Active PFC power supplies?
I'm looking at getting a UPS for my home computer. So far the APC BR700G looks very promising, except for one thing: one of the reviews on Newegg says that this UPS does not work with a power supply ...
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How can I prevent apcupsd from managing the PC, and leave it to a custom script?
I bought myself a old APC Back-UPS CS650 uninterruptible power supply, and replaced the accumulator in it with a large lead-acid one, it coincides in voltage with the stock accumulator. I connected ...
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UPS suddenly restarting, what might be the cause?
Background
My UPS has a backup of about 10 mins, thus, it's battery life is good. No problems detectable.
My CPU, on the other hand, is also fine with no major hardware problems (as it looks so) ...
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Back UPS, programmatically get remaining power
I just bought a Back-UPS.
So that if there is a power outage, this serves as some sort of a backup power.
I have set it up. It works, even when I plug it out.
But what I want to happen, is that 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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Can I run a computer using DC power?
I always thought that using a conventional UPS with a PC is highly inefficient. Power goes from AC -> DC -> AC in UPS and then AC -> DC in PC SMPS. Since PC works only with DC (12, 5 and 3 volts) It ...
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What are the fan dimensions for EATON 5E 2000I USB UPS 2000VA/1200W
I would like to replace the fan because it's too noisy but I'm not sure what the dimensions are. It looks like a 50mm fan and I'm trying to find an accurate datasheet for the UPS or a service manual ...
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Wifi via UPS during loadshedding
The primary fibre cable and wifi box is in my landlady’s house
She has both the ONT and wifi box plugged into the UPS.
The cables to the other wifis (mine included) run from her wifi box.
Her wifi is ...
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apcupsd incorrectly detects UPS power status
This is a brand new device (BGM1500B). It seems when it charges to 100% it starts to report STATUS : ONBATT. The device itself shows that it is hooked up to power on the display and I do not hear it ...
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UPSmart always gives "connection failure" when connecting to UPS through USB
I want to connect UPS (Irbis ISL1000ET) to OS (Ubuntu 18.04), so that when power is off and battery is low, OS shuts down automatically.
However I cannot do this - I installed with superuser ...
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Turning off the UPS when PC is off
I have a UPS to which I've plugged my PC and 2 monitors. Today while my PC and monitors were turned off and the UPS on and plugged, a power outage happened for roughly an hour.
It made me think about ...
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Upside down SLA/VRLA battery in UPS?
Is it ok to position SLA (sealed lead acid) / VRLA (valve-regulated lead acid) batteries upside down?
Are there safety, performance, or longevity implications?
Some UPS (uninterruptible power supply) ...
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Clearing confusion about no-break power requirement
I'm considering purchasing a no-break for my Intel NUC8i7HNK. I'm looking at a model that says that the power required by all connected appliances shouldn't exceed 600 VA (same as W, I suppose). The ...
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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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Powerchute Windows10 and reducing power consumption while on UPS battery
I have a computation app that can sense running on batteries, but does not trigger when PowerChute 3.1.0 is running on battery power (APC UPS1500 Pro). That app knows the power is limited, but Win10 ...
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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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Put computer in hibernate when power outage happens
I have a Cyberpower UPS connected to my desktop PC. I would like the computer to automatically go into hibernation after a couple minutes of a power failure (i.e. UPS switching to its battery). The ...
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Infotec X4 on Ubuntu with NUT
I am trying to connect an Infotec X4 UPS to NUT on an Ubuntu server.
The UPS is correctly recognized by ViewPower software on a Windows laptop. This allowed me to conclude that the USB interface works ...
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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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Boot issues after thunder storm
The village where I live was sat under a thunder cloud for most of Friday, and we suffered a few power fluctuations (specifically, what seemed to be split-second outages). When I got back home from ...
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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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GPU fails on because UPS
I got a new UPS not long ago, and installed it's software (upsilon 2000) and driver. the software installs a battery driver for the UPS so I can use windows power plans settings to control what ...
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Why is my UPS causing my monitor to make a high pitched humming noise
I recently purchased a UPS for a new server build for my home. Since the server sits next to my desk, I figured I'd plug my Macbook and monitor into the UPS as well. That way if the power goes out, I ...
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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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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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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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Computer Does Not Work At Home But Works in PC Repair Shop
I have never encountered this phenomenon. No, it's not phenomenon - it's anomaly that defies logic.
My computer was left for 1 week in a mixed standby hibernate state. I think it's S4, don't remember. ...
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How to determine what size backup power equipment is needed?
I want to have an optimum continuous supply for my small office for 6hours, which includes, a laptop (AsusG73SW-> 8Cells : 5200 mAh 74 Whrs; Output : 19 V DC, 6.3 A, 150 W; Input: 100-240 V AC, 50/60 ...
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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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APC Back-UPS and Corsair PSU do not work well together
UPS: APC BX700U-GR
PSU: Corsair RM550X
Maximum power consumption of all devices connected to the UPS: 100-110W
Average power consumption of all devices connected to the UPS: 60-70W
It is not possible ...
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1200VA UPS Doesn't Supply Power to Monitor
I have a DELL Optiplex 7080 Tower PC running on windows 10 pro, and a Samsung SR35 Monitor. I had connected them into a 1200VA Offline UPS, but sometimes, when computer boots up (after the splash ...
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1200VA UPS Charging Time
I've bought a brand new 1200VA Offline UPS, but the problem is my UPS brand doesn't provide the information about charging time. So, I want to know how much time it takes to charge a 1200VA UPS? Also, ...
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Power usage in Task Manager says "very high"
I am running the next parts:
SMPS 750W
Ryzen 9 3900x
RTX 3060
24 inches led monitor
These parts are connected to 600 VA ups and wherever I run a software I see my power usage shoot up very high and ...
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