September 28, 20205 yr I recently bought a new UPS (APC Back-UPS XS 700U) for my small unRAID server but it seems like it won't work as intended. I also posted on the Reddit page with someone responding that it's not supported. It's a small APC usb enabled UPS which works fine on Windows but not with unRAID, I was hoping to at least get it to identify that power is down so it will gracefully shut down when I'm away. Is there a list of "guaranteed to work" APC UPSes ? If I'm not able to make it work I'll be in the position to return or sell it so I can get a a supported one , but which work?! Thank you for your time, below a screenshot of what unRaid sees when the UPS is connected. I also tried NUT and it seems to show the exact same information.
September 28, 20205 yr Have you had a look at this thread In my case I had to update the firmware of the UPS in windows and then change it to modbus to get full stats. I don't know if that model works with modbus, but it cant hurt to try different settings.
September 28, 20205 yr How it doesn't work ? BackUPS usually won't measure / provide realtime power usage. And this UPS battery capacity can't provide sufficient portect time for your loading which need safe shutdown.
September 29, 20205 yr Author I'm looking into connecting the device to a Windows machine , I tried with my desktop but I had issues... it might be defective. 21 hours ago, Vr2Io said: How it doesn't work ? BackUPS usually won't measure / provide realtime power usage. And this UPS battery capacity can't provide sufficient portect time for your loading which need safe shutdown. I want it to shutdown after 30 seconds of no power but it won't detect that it is on battery. It *is* sufficient. The PSU of the machine is 350W. Calculators put it at 171W too on *full load*, which hardly ever happens. It's a mini-itx , small enclosure with a low TDP processor.
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