Question I don't know why my computer can't start up?

Jul 6, 2020
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Plz help me?
My pc general use, to gaming and animation. I bought this computer over a year ago. But always running problem like can't turn on, and i ready did 2x twice changed my motherboard, because unknown reason.

My spec:
Motherboard: Asrock B450 Pro4
CPU: Ryzen 5 3600 6 core
GPU: Nvidia GTX 1660 6GB
RAM: TeamGroup Elite (8x2) 16GB 2666Mhz
PSU: Cooler Master Gold MVW 550 +80
 

Ferimer

Distinguished
Plz help me?
My pc general use, to gaming and animation. I bought this computer over a year ago. But always running problem like can't turn on, and i ready did 2x twice changed my motherboard, because unknown reason.

My spec:
Motherboard: Asrock B450 Pro4
CPU: Ryzen 5 3600 6 core
GPU: Nvidia GTX 1660 6GB
RAM: TeamGroup Elite (8x2) 16GB 2666Mhz
PSU: Cooler Master Gold MVW 550 +80
Maybe try a new PSU if you one that has a bit more Wattage in it?