Hello,

A video card biting the dust could do that. The failure is interrupting POST, so that could be why you aren't seeing USB port lights.

It could also be the motherboard. It's almost a coin toss. I am leaning toward the video card, but don't have much more than a hunch to back that up.

One question: did your computer used to have a beep a couple seconds after you turned it on, and does it still?


I didn't find the right solution from the internet.
References:
https://forums.anandtech.com/threads/no-output-on-monitor-or-any-usb-components.2510170/
Private Cloud Video Examples