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An Uninterruptible Power Supply (UPS) is an electrical device that provides backup power to critical equipment in the event of a power outage or other power-related issues.

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UPS shuts down my PC with continuous beep when playing games.

Knowing my needs I bought a line interactive UPS with 1200VA/720W rating assuming it to be sufficient for my use. But, every time there is a power outage, UPS shuts down my PC with continuous beep while playing games. It works fine with general usage. But with intensive tasks or games, it just shuts down with a continuous beep. It doesn’t seem to sustain heavy loads.

I checked my UPS manual to see what does a continuous beep mean and the manual says it is due to a fault and doesn’t really describe anything else. I thought my PC would hit 600W or so at peak and be able to sustain with this UPS for a short period(1-2mins) every time there is an outage. But it doesn't seem to work. Also, I use this UPS only for my CPU and nothing else. All my other peripherals like monitors, speakers and rest are connected to an other UPS which works fine.


Processor: AMD Ryzen 5 5600x(Air cooled)

Mother Board: B550M Gigabyte Aorus Pro AC

GPU: RTX 3070Ti

Ram: 2X 8GB 3200Mhz Ram

HDD’s: 1X 250GB m.2 NVme SSD, 1X 1TB 7200RPM SATA drive

PSU: Deepcool DQ750-M V2(750W)'

UPS: Zebronics: Zeb-U1225(1200VA/720W)


''I would like to know if i’m doing something wrong with the setup here. Is the UPS under spec for my PC? or is it really a faulty UPS? Is it not outputting enough power? Or is it something to do with the PSU? If so, what/how do I choose another UPS to support my PC?

I saw a couple of people using APC BR1500(1500VA/865W) UPS to support their gaming rigs. Does 1500VA/865W makes such a change compared to 1200VA/720W? Also, Zebronics UPS outputs a pure sine wave which APC doesn’t.

I’m clueless at this point. Please educate me! I’m worried about busting my new PC due to this. :(

Ответ на этот вопрос У меня та же проблема

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What happens when you unplug the computer and the other plugs plugged into the UPS? Does the beeping stop. Slowly plug in your gear one device at a time did you discover one device was the cause?


Actually, only my CPU is connected to this UPS. I use an other UPS for rest of the equipment.


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It is most likely that your UPS is not faulty. It probably doesn’t provide enough power to power all of your devices plugged into it at once. While it might be fine only powering your PC, after you have a monitor plugged into it, it probably won’t be able to handle the power draw from a PC under load and a monitor plugged into it. My suggestion would be to plug your monitor into a wall outlet, and only plug your PC into the UPS. Start playing an intensive game and then see if the UPS is still powering off. You may need to buy a higher rated UPS if the problem persists. 850 watts should be of an applicable amount, but you can never go wrong with more power. Also, you should factor in about a 100 watt headroom, as you never want a UPS that is rated for the same amount of power draw as your power supply.

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@deltaforce since it only happens during high demands when you are gaming I concur that it is most likely an issue with the UPS not supplying enough power.

@bobsinger "I use this UPS only for my CPU and nothing else. All my other peripherals like monitors, speakers and rest are connected to an other UPS" looks like nothing else gets plugged into the UPS as pointed out by the OP


You have a 750W power supply and a 720W UPS ... I think Bob's answer stands.


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