This is absolutely frustrating. My asrock motherboard seemingly broke after I completed the build. Before I had done that though, I have tested it outside the case for a good half hour with no issues. In that time I have updated the bios, and even run a few games. All of the components were fine. Now as I boot up the pc, it freezes on the bios splash screen. After clearing the cmos it freezes on the " uefi deafaults have been loaded" screen. The keyboard is unresponsive, even though it does get power, but only until it is unplugged from the usb slot. After it is unplugged it doesn't get power anymore. I don't know what to do. I find it unlikely that the case shorted out the motherboard as all the standoffs came preinstalled and I took special care not to scratch or bump any smd components on the underside. How can I even diagnose this? What do?