My MSI Z170A TOMAHAWK AC motherboard has build in LED's that indicate malfunction or errors. I know this because I made these errors happen a few times during my build. Now that I build my pc the proper way and everything seems to work(mouse/keyboard turn on), my monitor doesnt seems to recieve a signal from my motherboard still. I tried resetting the BIOS and I know the cpu and ram are working (according to the LED's)