Hi,
Finally I was able to put the modified BIOS into my flash chip..... used a CH341 programmer.
My system: Asus mainboard: M5A99X EVO R2.0, AMD FX 8 core CPU, Windows 10 x64, NVMe SSD: Intel 500GB with an PCIe to NVMe adapter.

I am sure that the modified Bios works, I see now an entry "PATA SM" in the Bios. Also I have a installation DVD of Windows Server 2012R2, it sees the NVMe disk, and allows selecting it. I do not want to install Windows 2012R2, and just used it to test, if it would allow installation. So far so good... On the negative side is that Linux tools like Clonezilla Live DVD does not see the NVMe disk, so I can't use those tools.

Please support me, to get my NVMe disk bootable with Windows 10 x64.....

More details about my system: I have to very old SATA SSDs in this machine, a 80GB and a 120GB.
The computer boots now (C Drive) from the 120GB drive, maybe that is also important: the 120GB SSD is partitioned with MBR.
In Bios I must enable CSM, when I disable it, I can't boot anymore from the 120GB SSD.

What I tried yesterday: I used a Window tool "Macrium Reflect" to clone the complete 120GB SSD:
Before my boot-drive was c:, the NVMe SSD was G:
Cloning seemed to be fine, letter H: was assigned to cloned SSD....
After rebooting and changing boot drive to "PATA ...", it seems that the system still boots from the original old 120GB SATA SSD, when I remove the SATA cable from the 120GB SSD, machine does not boot.

Please help! What steps are recommended? If possible I would like to avoid to install a new fresh windows.

I'm not seeing anything like PATA in the bios ,flashed bios modded by You.
In Windows I found only something like this and I had it before(after flashing the bios with mod).

Hi,
OK, I agree to do a new installation...
One more beginners question: How to disable Secure Boot? There is only "Windows UEFI" and "other OS" option. Do I have to delete all the keys? Does it have some influence on the Windows activation?
@Fernando What happens if I do not delete the keys, just curious.

For those with an Asus Z87 Plus motherboard with a 2103 firmware, this is what the 'undermost' DXE driver looked like on my end before (left Pic) and after (right Pic) the insertion of the NVMe module:


EDIT by Fernando: To save space, I have cropped, resized and directly attached the pictures by using the Forum software. They can be enlarged by clicking onto them.

I Can flash to version 6.60 and it shows 6.60 and then to 6.80 modded and it show 6.80.So it looks like flashed for me.

@CoffeeOne - "There is only "Windows UEFI" and "other OS" option" << If you want secure boot disabled choose other OS

@Fernando and @Lost_N_BIOS
Thx to both of you. I did not change secure boot setting, but there was no problem with it when I newly installed Win10.
I had some problems with Windows 10 activation, but finally worked when I reentered my Windows 7 key :)

This forum is really awesome, there is so much wrong information spread in the internet. For example NVMe only works with PCIe 3.0 boards. That's of course bullshit, I even can boot (with the help of this forum) from the NVMe SSD, with a PCIe 2.0 board.

I will not have the full speed, but speed is still good. I really have problems to enter the Bios now, because of the faster boot process.
What benchmark programs are you guys using, I could post benchmarks here for my system (PCIe 2.0 board).

it's an old software for test ssd/nvme performance, or not?

hello,

Can You help me with issue I have with NVME on Asus Z9PE-D8 motherboard?

About half-year ago I bought Samsung 970 EVO - this is where I realized I cannot boot NVME on my PC.
I found then Your post (great guide btw) and I modded my bios with driver and everything was working fine (with dual boot system Ubuntu/Windows10 and use Grub to choose between os) until this friday.

This Friday I started Windows10 (nothing unusual) work a bit in it and then suddenly my mouse stopped working. I thought that nothing serious happened and rebooted my pc (with normal Start->Reboot from windows).

After that my PC did not booted correctly.

PC starts I can go to BIOS I see all drives (also NVME).
When I select to boot from NVME, GRUB starts correctly, let me choose OS and then:

- When I choose Ubuntu, all I see is "Loading kernel"/"Loading initramfs" then on POST display code 0E is displayed and system hangs.
- When I choose Windows 10 on first boot I see Windows boot screen (windows logo) POST goes 0E and PC hangs (when I restart next time i see boot screen with message "Restoring to save configuration" POST goes 0E and PC hangs)
- I tried also Ubuntu Live CD - in this example Grub also starts correctly, but when I choose "Try Ubuntu without installing" PC hangs with POST - 0E
- I tried memtest86 (EFI) and this one started correctly

(When I disable EFI and boot LiveCD or Ubuntu from flash in "Legacy" mode, everything works correctly)

--
After trying with modified BIOS, I restored BIOS from ASUS webpage - then everything works fine
(I can boot LiveCD/Flash Ubuntu from EFI without issues) but I do not see my NVME drive :(

After restoring BIOS I took new image and modified new image with NVME driver (I tried both 'full' version and small one).
Both results was the same, BIOS starts and sees drives but every-time I tried to boot OS from EFI, booting hangs and code 0E was displayed.
Legacy booting works fine.
For tests I removed also all PCIe cards, all drives and tried to boot from EFI Live CD - boot hangs with 0E code.


* According to manual 0E means 'Microcode missing' although I checked modified bios with UBU and there
are microcodes for my CPU

Any help would be appreciated.

Here is my bench: