asus rog strix b360-f gaming

Hi, Bit of backstory: I recently bought a new motherboard (B360-F GAMING as the title says), because the RAM-dimm in my old mobo was fried. After completely swapping my components I pressed the powerbutton, it boots for about 0,5s until the led with “CPU” next to it flashes turning the machine...

Hello good people, first time poster here... I'm by no means a techwizard, but I've put together a few pc's from scratch in my time. My son has a pc with Asus Strix B360-F Gaming mobo, Intel Core i5-9400F cpu, MSI GeForce RTX 2070 Ventus and corsai TX550m 550W psu. Now, he got a Intel Core...