Issue: When UPS switched back from battery to AC (power) the computer restarts. Even if computer is idle (less load)
Scenario steps:
- UPS is plugged into wall
- only PC is plugged into the UPS
- Remove UPS into wall -> PC will then use the UPS battery without issues
- Plugged back the UPS into the wall -> UPS will switch back to AC and it triggers the computer to restart
What might be the possible faulty hardware on this case?
Notes
Cyberpower has a software called power plan personal, which has a self test feature that switches power source from AC power to UPS battery and switches back from battery to AC power.
- Only the PC is plugged in the UPS
- UPS is brand new and fully charged
- Cyberpower has a self test software but also fails
- The last logged event in the cyberpower software upon using self test feature is
The UPS has started a battery test process
-> Which I think is because the computer restarted when it switches back from battery to AC power during the test.
Hardware
Computer watts usage is around 140~200 watts (tested and verified via the UPS software and a kill a watt device)
PC Specs
PSU: Thermaltake smart se 730w(Hold up time of 16msec (minimum) at 80% of full load at 230Vac input.)
motherboard: Aorus Pro b460 AC
processor: i5 10400 2.90ghz~4ghz
ram: 2x 8GB hyper-x fury 2400hz
GPU: MSI GTX 1660 super
x1 gaming keyboard
x1 gaming mouse
x1 webcam
Monitors: x1 AOC 27g2 and x1 BENQ 22" (Note: Monitors are not plugged into UPS)
UPS: Cyberpower ut1500e 1500va/900 watts
- transfer time 4ms as defined in its specs -> https://www.cyberpower.com/ph/en/product/sku/ut1500e#specification