@Fernando
thank you for your availability to try helping me.
In attach original ROM.bin file HP z220

@Fernando,

I have successfully flashed the modded BIOS (which was checked by you) on Mainboar MSI B75A-G43 and my PC now can boot very fast from a new Samsung 970 Evo Plus SSD.
Thank you for your hearty support. I noticed that the NVMe drive can be seen only in the Boot menu with merely the name "PATA". However, that's perfect for the old mainboard.

Hi everybody,

I have a question considering one line in the "what you should know" overview of the OP (thanks for this!).
It says:
"Note: Some NVMe SSDs like Samsung's 950 Pro SSD are natively bootable in LEGACY mode (CSM and loading of Option ROMs has to be enabled within the BIOS), because their Controller chip contains its own NVMe supporting Option ROM module."

So, this means that I can get some NVME SSDs to boot on some older systems without needing to modify the BIOS, right?
If I get that right, is there some way to tell whether this will work on a specific board with a specific NVME SSD?

In particular, I want to get an NVME SSD for a ASUS Rampage IV Extreme board (x79 chipset).
Which NVME SSD can I get that this could work with?

Thanks!

P.S.: Will there in general be a performance loss of booting in legacy mode?

@Fernando

thank you for your quick and detailed answer!

In the meantime I read some similar infos and decided that it was indeed worth modding the BIOS and I already managed to follow your guide and create the modded *rom file.
I did this for a friend, so I can only confirm success whenever he flashed my version (but I did all the double-checks you recommend in the instructions and it all looks good).

Thanks again for your quick support and your nice guide in the first place! :)

@Fernando,
thank for your effort and hint.
yes it is possible to insert " small version" as you indicated and I actually did it but unfortunatly final modded file cannot be flashed in z220 HP.
I 've tryed to flash by means of native setup utility of bios with souce modded file on usb pendrive.
Once launched and confirmed the Rom flash procedure, immediatly an error message appears ( see picture ).

Is it possible that your NVme moduel insertion may not work for HP mobs?
I have not only checked that aside from NVMe module insertion nothing else changed in source file but renamed the modded file exactly as the origial one and, after that some failured flashing, replaced also the creation date allining it to the genuine HP file but result did not change.
Immedialy after error messagge appears, a check on "boot order" in bios shows that it disappears "Windows boot loader" and a strange "USB HDD booting" becoem available ....In other words soem changes in biso happens but there is something does not work
Any hint?

Hello,

I have successfully run a Samsung 970 EVO Plus 500 GB NVMe on my old Asus Rog G751JY following the instructions. So far so good...

However, since the BIOS hack, my Realtek PCIe GbE Family Controller can no longer be activated. I have tried many drivers, none of them work. Could I have made a mistake when adjusting the BIOS? It makes me wonder why the NVMEXpress module is right under the LAN driver module. I assume that this is the family controller? Could there be a connection? Does anyone have a tip?

I also miss the "Fast Boot" option in the BIOS. According to various tools, the BIOS runs in UEFI mode and CSM is deactivated. Not that it bothers me, I'm just surprised that it has now disappeared. Does anyone have any tips?

Greetings
Kaaybean

Hi Fernando,
Please help me,
I could not add the NVME module into the BIOS, and got an error

the volume is not like your picture
i attached the BIOS file here

Really appreciate... thank you

hello Fernando,
i tried add nvme by UEFItool and saved image succesfully.
but when started flash the bios, it show the error
-18 Error: Secure Flash Rom Verify fail
Please help

Hi fernando,
Thank you for your quick response and help. My computer model is lenovo m73, any other easy method to achieve this?
Because i am not good at program and afraid that the mb would be crashed.