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. 1000 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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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.
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. 1000 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.