Gigabyte GA-Z77X-UD3H boot loop / BIOS corruption fix (read instructions)

I tried to install a BluRay drive and my system. The CPU fan barely moved and then the computer kept resetting. I thought the motherboard was dead. Here is how I recovered it: 1) Download flash BIOS from gigabyte. 2) Uncompress BIOS to USB drive. FAT32 format. 3) Flip switch to boot into secondary BIOS 3b) If you have trouble doing this you may need to clear that CMOS SW using push button I show. 4) Go into Q-Flash 5) Change switch to primary BIOS 6) Flash primary BIOS with new copy. 6b) If you&unable to boot after a bit, you may also need to clear CMOS SW on primary BIOS. This is what worked for me. Your experience may vary. Hope this is helpful. I run F18 on backup and F20e on primary. 7) USB keyboard should be plugged in jacks closest to audio ports.