@Berkto - Thanks, Measured + Verified Boot not enabled at FPF/chipset side, so you're safe from Boot Guard causing any issues here
BIOS I make you should not brick

I suggest testing the original unlocked BIOS first, and make Windows installer with the Microsoft USB/DVD tool, then test NVME on all slots on the board, in case one is not wired properly for NVME
Might just be Fast Boot causing the issue? Disable this for sure for the NVME mod BIOS I made here, if/when you test that. Then you can enable later and test w/ enabled if needed.
For the NVME mod BIOS, be sure to follow all steps @ #4 here in the "This is what you should do" section - [Guide] How to get full NVMe support for all Systems with an AMI UEFI BIOS

Here are those BIOS to test, write them back via >> FPTw.exe -bios -f filename.bin
If all still not working, you can flash back your original biosreg.bin
1. biosregnvme.bin = stock NVME stuff removed, normal NVME mod inserted + menu unlock
2. biosregunlock = original biosreg.bin dump >> Menu unlock only.

After BIOS flash, always load optimized defaults, then save/apply and reboot back to BIOS to make other changes.

Thank you very much. the file i sent you contains the original bios then? sorry for my lack of knowledge. so the guide involves the tools to modify my original bios but you won't send any modded file, i'll modify using the guide, i get it right i guess :)

@Berkto - Sorry, I'm not sure which file you are asking about here? If you mean at post #13, yes, that is your "BIOS Region" you sent me, this is part of your BIOS.
And sorry for any confusion caused by my post at #16, looks like I forgot to drop the link for you after I uploaded the files/BIOS I made you!!
You don't have to modify anything, sorry, I just didn't post link for uploaded files when I posted my reply
Here you go, BIOS as outlined at post #16 - http://s000.tinyupload.com/index.php?fil...620582749654332

Hello again,

so here's what happened. i removed all my drives to try windows installer tool work but it didn't so i installed my intel ssd as well to turn windows on and flash the bios, and i flashed the bios with the unlock one, restarted the pc, entered bios and voila! my 970, along with intel was there, no drama! so i was very happy, turned windows on, formatted the evo with disk management tool and it was a new working drive! (i attached the photo of happiness which lasted very short)

then i shut the pc down to install my hdd as well, which i did. then turned pc on and guess what i saw? the evo was gone, there was only my intel ssd and my hdd. than i removed the hdd, booted again but no it was gone, than i did everything, tried other nvme bios, flashed the unlock bios again without the hdd but i had no luck. i couldn't make the pc see it again, in the meantime secureboot, csm and fastboot were all off.

any guesses? :)

If it was present before...why did u flashed another bios file?

Do not know if ur looking for a multiple system boot machine but we have to question the changes made automatically in EFI boot partitions

Go back to previously flashed bios and without Intel NVMe ssd and no HDD SATA, only the 970, install windows.
Even if 970 doesn't show in the bios, try anyway to install windows.
Add HDD sata, NEVER boot from it, confirm in Disk Management.
Add Intel NVMe, NEVER boot from it, confirm in DM.
Confirm the 3 drives in OS from the Evo.

Zitat von MeatWar im Beitrag #20

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If it was present before...why did u flashed another bios file?

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Zitat von MeatWar im Beitrag #20

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Confirm the 3 drives in OS from the Evo.

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Zitat von MeatWar im Beitrag #20

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Go back to previously flashed bios and without Intel NVMe ssd and no HDD SATA, only the 970, install windows.

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Yes, this ^^ What MeatWar said

And, you need to clarify what BIOS you use that I gave you by exact name, or exact folder name, so we know what BIOS was working for you (Both should work, and both are unlocked, so how you described them isn't ideal )
With NVME Mod BIOS I sent you, where I removed native NVME compatibility, you may (should not) see NVME in BIOS at all, until you get windows installed, then you will see "Windows Boot Loader" on the boot page where you move the boot devices around and put windows drive first in list
With stock unlocked BIOS, I did not touch NVME, you likely would see NVME in BIOS by name, even if windows not installed, due to native NVME compatibility and not NVME mod method

i first flashed with biosregunlock.bin which was in the as-is-unlocked folder. and like i said when i first entered the unlocked bios, i could see the evo. hdd was not installed, but the intel ssd was installed like in the previous attachment. i booted the windows from intel, formatted evo from disk management tool. shut the pc down, installed hdd and we were back to basics, intel and hdd was there but evo was gone. so i removed hdd, but i couldn't see the samsung in the bios ever again. i didn't change any setting in the meantime. safe boot, csm were off.

so i tried the biosregNVME.bin which was in the Stock-NVME-Removed-NVME-Mod-Unlocked folder. and bios didn't detect samsung again, and i couldn't even see the nvme devices list in the bios menu. but the intel ssd booted just fine. so i flashed back to the first bios i tried that worked before, without the hdd but it didn't work. so we're back at square one.

edit: by the way, the installer i made with the win 7 usb dvd download tool didn't even boot in legacy or uefi mode, and when i enter bios when the usb drive is on, it doesn't leave the bios screen with or without saving or discarding changes, it only restarts if i restore to defaults. so i think i do something wrong with the tool, or i use the wrong tool?

i also have a rufus drive, that turns windows installer on perfectly but sees no drive to install, just like in bios.

@Lost_N_BIOS, @Fernando

so i'd like to know youe opinion, why do think i was able to detect the samsung after i flashed the bios but it was gone after i installed my hdd. i am still struggling and couldn't make any progress unfortunately :(