Hey. I just built my first gaming pc. When I flick the switxh on my PSU and then press my power button it turns on. But aftdr 14-16 seconds it goes off then turns back on about 3seconds later. I dont know why. Can someone help. Here are my specs. I have a corsair cx-m 550w PSU. I have a ASROCK B450M STEEL LEGEND AM4 MICRO ATX MOBO. This is a ATX BUILD. I HAVE A RYZEN 7 1700x. And i have a 240 gb ssd and seagate hardrive. Also a radeon xfx 560. With 6 pin pcie connector slot.