I’ve just finished having a friend make a computer with me (I’m a noob when it comes to them), and everything is plugged in, every fan is blowing, and everything turns on as would usually function. The only problem is, when it’s hooked up to my computer monitor, there is no display. I made sure the HDMI was all good and correct, tried on another monitor, and even tried a VGA cable. I’m not having any luck figuring out what it is or what to do.