I replaced the motherboard and cpu in my computer. The new board is Gigabyte. When I start up, it displays the bios screen and then goes to black with the insert proper boot device text. I go into the settings and try to make it boot to the SSD, but it is not working there either. I upgraded to windows 10 from 8.1 back when it was offered, and the bios setup seems to recognize it as 8. I don't want to mess with too much stuff, but even default settings doesn't help. How can I fix this mess?