This is my very first build. I’m using a Prime B450M-A mobo and a Phanteks 300 Mid Tower. The graphics card (Geforce GTX 1080 super) and all fans run fine - the motherboard lights up, cooler fan runs. Case USBs dont work because USB 3.0 port is broken (a pin is out) and the USB’s connected to the motherboard itself also don’t work. The keyboard lights up for a second then turns off. Is there any way I can fix this?