Hi everyone,
like all the other members who contributed to this discussion, I would also like to get rid of F9 bios to try to solve the sleep issues affecting my Mavericks installation.
Unfortunately, although I contacted twice the Gigabyte support asking them a crystal clear question on how to downgrade from F9, arguing that its double instalation in both the bios chips has merely vanished the advantage of having a dual bios MB, I only received very useless entry-level replies like "the F9 bios is not known to create problems with the Operating Systems (MS only) supported by Gigabyte" or "the downgrade is not possible to ensure compatibility with new processors blablabla"
![Angry >:(](http://forum.giga-byte.co.uk/Smileys/default/angry.gif)
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No need to say that I feel very frustrasted by the useless replies and very disappointed as a returning customer who built three systems purchasing their boards in the last 12 months.
Searching on the web I found this discussion and I would love to try the fpt method described here.
My only issue is how to make sure I'm correctly inserting in the bios I'd like to flash my MAC address.
Indeed, I found some links witrhin some posts pointing to some explalations, but I'm not sure I fully understood them.
Is there anyone willing to kindly summarize again in this discussion the steps for MAC insertion in the bios?
Thanks for your patient reading of this long post.
Marco