Hey,

Now I could boot it up while the Ethernet cable not plugged in like the same issue here https://www.3dhubs.com/talk/t/z450-n...problems/11262

I tried the fix there by editing the ports to Auto in the BIOS like they said but still didn't solve the problem. I don't have the same amount of ports tho when I access the BIOS, I only see two serial ports and one parallel port to change unlike them in the link above.

Plus when I try to connect the printer to the switch after it booted, the LED lights next to the port don't light up. I don't know if any of that has a meaning. I'm not savvy in electronics.

Do you have any idea?

Thanks
Mo