So my new am4 motherboard gives me no signal , USBs work for a split second and then power stops flowing through the usb.now to eliminate issues I have : changed my h115i ( with am4 bracket) for a spare wraith cooler , I have switched RAM , PSU powering my AM3 motherboard to boot (100o watts), I have booted my 1800x on another PC so it's not the cpu, switched GPU, computer boots and motherboard seems to respond to power as the motherboard turns on and gives off red LED light , both power pin connectors are in place , I have reset ( or tried ) to reset CMOS by removing the battery and jumping it. The motherboard it self has a HDMI port but that does not.give signal.the PC it's fully powered untill I turn it off. At this moment I have an RMA for the board, I have never asked for help but I'm kinda in a situation but I feel like if anything you are my last hope oh great PC master race please help this pleb game again ....