@Lost_N_BIOS
You are so enthusiastic. Thank you very much for your help in modifying BIOS.
But I’m afraid you will not be happy, because I can’t give feedback immediately because I don’t have 4K-native hard disk at present, so I can only collect it temporarily or use it with 512 native hard disk.
But I know that since I joined this forum, I saw that the replies to the posts that got your help in the forum were all “thank you”. No feedback failed (maybe I missed it
), so I believe your modified version can solve the problem.
@thinking - Thanks, and you’re welcome! 
And don’t worry, I do not mind if no one can test that BIOS I made, it’s OK and does not bother me
You can test BIOS I made if you want, to let us know if you can see the setting or not, having 4Kn disk does not matter in regards to seeing if the setting is visible yet or not in the BIOS I made.
So yes, you can temp test, or keep using it etc, it does not matter. If you test and it’s not visible, let me know, I will make the other two BIOS and one of them will for sure make it visible.
Ohh yes, there has been quite a few failures from time to time, I’m an honest person! Some BIOS I cannot edit at all, so even after main tries all fail, but that does not always mean = brick BIOS, just can be failed edit and nothing happens, no changes etc
We do not have a “negative” feedback button here, so there’s no way to keep track of something like that. Some BIOS edits I get wrong from time to time and cause brick (rare, but it happens), and some BIOS edits take many tries to get right.
Edits like this, to change a setting default, or make a setting visible, are not usually ones that mail fail or brick, those would be on more advanced edits like swapping modules, in-depth menu editing, crossflash attempts etc.
Usually, with BIOS edit like we’re discussing, to “make a setting visible” I will send 1-3 BIOS up front to the user and have them flash in certain order then stop once setting is visible, then I know what method to use to make all rest visible in the BIOS.
In this particular edit though, seeing the setting was not his goal, only changing the default. So there was only one BIOS to send, with the default hard changed at all locations, and then on top of that I made one edit (of three possible) that may make it visible.
So, if BIOS I made the setting is not visible, then two more BIOS to test and it would be (probably first BIOS I told you to test out of set of 2 would be the one to make it visible if not already)
As for this particular 4Kn issue, we don’t know if changing this setting default alone fixes the issue, or if other changes also needed too, until you get 4Kn disk or @Tacis test that BIOS I made
As I said earlier, changing the setting fixes the issue. I just wanted it to be fixed permanently, not till the next CMOS reset or loading of default settings.
Unfortunately I had to quickly flash the BIOS the Gigabyte sent so there will be no extra delay. Thank you!
@Tacis - Sorry, I didn’t realize you actually tested that, I guess I thought you found the info and maybe hadn’t tried yourself yet. Derp, I’m so blind 
Thanks for confirmation! Then, at least we know that is the fix for 4Kn now. So, all @thinking needs is to test the BIOS I made and let us know if the setting is visible or new BIOS set needs made to make it visible
Once we know which method makes it visible, I can redo all edits to F10b and F10d and T2 if you guys want, and not change the setting, but just make it visible to you.
Hello there,
I have the same Gigabyte GA-Z97X-UD3H motherboard and i think I have similar issue.
I want to try bios upgrades but links are broken 
About issue:
I wanted to upgrade my PC and bought M2 SSD.
I flashed newest bios I found on the Gigabyte website. My operating system windows 10 was installed on another ssd drive. I saw all of my components in windows there was no problem.
After I formatted my hard drives and started to install my OS to NvMe M2, problem started.
I constantly get blue screen errors, I cannot boot anything since then. I have tried ubuntu os but no solution. I have tried 3 different USB drives which works just fine.
Lately I gave my computer to repairshop, they checked all components and they are working.
In summary, I can see all of my components properly in bios but cannot boot anything to system.
Please help.
As u probably already saw on other forums that mention this T2 file, the links r all the same and not available, try to get in touch with Gigabyte for this T2 bios version.
Last 3 users have not logged here almost a year…
unfortunately every link is broken as you said…
Will try to get in touch with gigabyte.
thank you for reply.