my newly built pc powers on (case fans, cpu, fan. as well as the gpu are all receiving power and running) but I am not receiving any beep and i'm not getting a display from the monitor. (this may not be related but when i press the power button on the case the system will turn on as it should but when i try to press the power button again it doesnt turn off, i usually have to physically unplug the power cable to power down)