My iMac Pro won't power on at all and is beeping, any ideas why?

I have no idea what else to say about the problem I’m having other than besides the faint beeping, the computer shows NO signs of life at all. No fans, nothing at all.

I don’t know if this is noteworthy, but it’s bootcamped with Windows 10, and lately if I’m using Windows and put the computer into sleep mode, when I come back to it, it won’t wake up and forces me to hard restart it. That problem started occuring about two weeks ago.

Here’s a video I recorded to demonstrate the beeping: https://youtu.be/uAFVe4LmR8A