I'm sure by now a lot of people who have this board are complaining about not being able to boot into the bios after installing windows or connecting their hard drives. Bios will boot to a black screen if any drives are connected especially after windows is installed. I have now found out the issue as to why it is doing that, but before I explain let me give some background on the situation.
I have been talking to customer support, and while they have been some what helpful, they are dodging the issue. They know some of their boards are not fully working at this time. They are trying to tell me "we shipped a lot of boards with no problems" and I'm sure they did, but when I look at online reviews tons of people seem to have this problem, so it look like they shipped a lot of buggy boards, or shipped them with a BIOS revision that we are not using.
Let me say that I think Gigabyte is a great company and in my opinion I think they make the best motherboards. For x99 systems, none of the motherboard manufacturer's have come with a perfect board yet. I've looked at every board out from every manufacturer and they all have mixed reviews and tons of bugs. I think this comes with the territory of buying the newest technology, so I'm not too upset. I just don't like when they try to downplay the issue to the customer. This black bios screen is annoying to me, but at least it doesn't affect functionality after setup.
Ok so heres the solution. It turns out this is a file system issue. NTFS Formatted drives are the cause. How do I know this? Because I have a bunch of HFS+ drives that work with the system no problem. As soon as I connect ANY NTFS drive bios will not display. Gigabyte tried to tell me "oh only certain drives are compatible" (yeah right) so I reformatted some of my NTFS drives to HFS+ And vice versa. Every time bios would work with HFS+ drives and not with NTFS. I can have as many HFS+ Drives connected as I want and bios boots perfect. If i connect even 1 NTFS drive it will boot to black screen. No matter the bios settings, I have tried each bios page as well. From the starting page, to the classic, to the HD tweak page etc. I have went as far as trying EVERY bios revision from the default (f8 i believe) to F12, no go. Some people are saying if you change SATA Controller to Raid this is a workaround that will make the bios boot right, but I haven't tried that yet, nor does it sound like something I want to try as I don't use raid.
So thats the issue here. Not the drives, something about the NTFS file system and the bios. Seems like this could easily be fixed in a bios update. I hope someone else who I haven't talked to reads this message from Gigabyte so they can release a fix as soon as possible.
If you dont know HFS+ is the Mac file system, NTFS is for Windows. That's all it is. Just a filesystem issue. Doesn't seem too hard to fix at all.