Hi EDC,
I also emailed sales at Gigabyte, a lengthy one explaining precisely what I wanted to know and why, even listing the points with numbers. I got back an almost identical response, even though I had asked for details such as how does it do it, and how does the user interact.
I must confess a somewhat hidden agenda here, as when flashing my bios using Qflash about 10 days ago, it failed, and on rebooting it emitted a continous tone, and the screen remained blank.
That is, the virtual dual bios failed! I did not wish to make this public, as I accept it may have been an isolated case, and I did not wish to put prospective people off. But the point is it did fail, and gave zero indications as to why, (it sum checked OK).
It is always possible for a flash to fail, though it has never happened to me before, and due to the lack of real explanation from Gigabyte, I am now suspicious of what they call "Virtual dual bios".
I returned the motherboard as faulty, and it was replaced, but I now sit with a new motherboard I am afraid to flash!
I did not go into explanation with the dealer as to how it had failed, as I thought that they might think I had overclocked it with inadequate cooling or something, and may refuse to replace it, (this has happened some years ago with a failed CPU I had never overclocked).
If you are considering getting this motherboard, I would watch this post, as I have replied to Gigabyte with a very stern note, and am awaiting a "final" reponse.
It is possible this is a great feature, but if it is, why are they not prepared to explain how it works, and why is it not fully explained on their web site. I am very pleased with the motherboard, it satisfies all my needs, except security of the bios, which due to the flash failure, is a worry. I was prepared to accept I might not have installed the feature, especially as it was possible "bios rescue utility" appears to require installing, but their insistance it is fully automatic and requires no intervention negates this possibilty.
I will keep you posted, and if they continue to evade giving details, I will escalate until I am satisied with the answer.
I do not wish to ring them, as that leave no footprint that could be referred to, as it is, all my emails are on there system.