Help with updating my BIOS

My graphics card has been having some problems (link to my problem https://teksyndicate.com/forum/gpu/evga-660-sc-crashing-help-please/151077) and when I called EVGA they said to try updating my bios. I have the Asrock Extreme 4 motherboard and would just like to know if you guys have any tips or advice before I do it. I'm just trying to be extra cautious before doing it!

Thanks!

-Crafty

https://www.youtube.com/watch?v=-TRWfYCiO6M

Watch this, should give you some more information.