PO5-640 Transient Power Surge- UPS suggested that there was an overload issue for the UPS

Alijoh

When I got my PO5-640 machine I also purchased a CyberPower 450VA UPS to protect my PC against power surges. But last night when I was playing Cyberpunk 2077 my system suddenly shut down and the warning tone and indications on the UPS suggested that there was an overload issue for the UPS. The UPS is rated for 260 Watts, and when considering my regular GPU power of 320 Watts and the CPU about 45 Watts, and as a result of a power surge requirement that I think happened for the GPU, the UPS shut down. (Gamers Nexus has a video about this and says power can surge up to 2-2.5 times the regular power in milliseconds!)

SO I am going to purchase a more powerful 530 Watts UPS, hopefully this won't happen again.

Just wanted to share this for others and also ask if anyone else has experienced something similar and what was the solution. Thanks.

P.S. 1

: Attached picture of the MSI Afterburner showing the GPU power rating.

P.S. 2: The link to the Gamers Nexus YouTube video about NVidia GPU power surge issues.

https://youtu.be/wnRyyCsuHFQ

 [Edited the thread to add issue detail]

JackE

While it's nominally-rated at 260watts continuous, the 450VA should handle brief surges up to 450 watts without tripping. Do you know how many milliseconds the surge has to last for it to trip?

billsey

You have a computer with an 800W power supply. Your UPS needs to handle at least an 800W load. Neither a 450VA or 530VA will cut it. Get one rated the same or bigger than your maximum power load. The larger UPSes over that will just run longer during a power outage or allow you to also have your monitor connected. I run a 1500VA on mine...

Alijoh

https://community.acer.com/en/discussion/comment/1174285#Comment_1174285

Yes, I know. I got a 1000 VA UPS.

billsey

Note that the UPS companies often give their specs as to the current on the line side. A 1000VA on the line side could be under 800W on the load side, since there's a loss in the conversion... Here's a snippet of the internet, which as we know is always correct:

As a rule of thumb, you should multiply it by .6 to convert the VA rating into Watts rating - so a 1000VA UPS is designed to handle roughly a 600-Watt load.

Alijoh

https://community.acer.com/en/discussion/comment/1175718#Comment_1175718

Thanks. Then that still should be more than enough for me because the GPU is max. 320 Watts and CPU around 120 Watts. So 600 Watts seem to be enough.

billsey

Good enough to keep you up long enough to automatically shutdown anyway. :)

chugzilla

i use this one and it works amazing.

APC Back-UPS Pro 1500VA 10-Outlet/2-USB Battery Back-Up and Surge Protector Black BN1500M2 - Best Buy