
After shutting down or sleeping, the UPS wakes the PC up.
PowerWalker UPS VI Series https://www.amazon.co.uk/dp/B000R3OZ9W
Power Supply is Corsair 1500W HXi Series ATX 3.1 & 5.1 PCIe Modular 80 Plus Platinum, Ultra Quiet (2035)
Max draw of the PC is 650W so don't sweat the draw difference
AC-Back is set to always off so that's not it
Wake timers are disabled
Hibernate and Hybrid Sleep are disabled
Windows has been set so no devices can be disabled by the system to save power
Peripherals have been disconnected
Fast boot is off
Edit: ErP is off but did try this on as well
PowerMaster+ says "communication with the device has resumed" each time. Shutdown type is "Shutdown" and "Shutdown UPS" is enabled
Any ideas?