I just bought and built a custom pc and I turned it on for the first time everything worked and it went to the bios screen for maybe 5 seconds then it goes to American Mega Trends and that page says it will shut down in 30 seconds and then after 30 seconds my computer shuts down. Under American Mega Trends there is something that says usb current status detected and under that it says shutdown in 15 seconds and then it shutdowns