Question PC not turning on

Dec 23, 2020
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so yesterday I was building my new pc, after I completed everything the PC wouldn't turn on even though everything is plugged in, not even the fans were spinning. And no I didn't forgot the Power SW cable.

The PSU is not the problem since I was using it on my previous PC (FSP Hyper 600w).

Is it possible that a dead motherboard has been shipped to me? It's a B450M Pro4-F