@mrxzmey - BIOS already properly modified/update (updated microdes + NVME Mod), See post #49 - [OFFER] Gigabyte GA-970A-DS3P rev2.x BIOS Mod NVME Added (4)

Hello Fernado,
No the Mainboard I have is the ASRock Z77 Pro4m (m meaning the small version) https://www.asrock.com/mb/Intel/Z77%20Pro4-M/#BIOS

The bios version of my source file was version 2.00 instant flash.

The original extention was .00 and was not recognized by the program UEFI tool. That’s the reason I changed it to .rom. The ME in the name was already there when I downloaded it from the Asrock site. ME probably stands for the smaller version.

I haven’t removed the GUID header, I don’t know what it is and it wasn’t in your guide as far as I know. Where can I find it to delete?

Many thanks for the help in advance.

Greetings Marc

Fernando,
If it is not the BIOS NVMe driver, do you have any advice on how to make this SSD work for boot.

What I have tried:
With USB media to boot load windows 10 to SSD with GPT type and running BIOS in UEFI mode. while SSD is only memory in laptop:
1. I unallocate all existing installs in SSD
2. I load driver for 970 pro SSD, which I downloaded off Samsung site
3. I click "new" volume, this makes unallocated space into 4 different regions
4. I click to install windows on SSD, where no errors show up from doing so
5. After I download it, it still does not boot. I also noticed that the BIOS in UEFI does not replace the "Hard Drive" boot device with the 970 pro ssd.

Do you know what else I should try, any BIOS modifications that can help me?

Edit:
Personally though, I still think it is the BIOS, because during LEGACY boot it shows the SSD as a possible boot option (this wouldn't work in LEGACY mode though for the reason it is GPT type), while in UEFI mode it does not, it just says "Hard Drive" as an option to boot.

Therefore, I was wondering if you knew how to unlock the current BIOS that I have or you know of a way to modify some of the settings that may help this work?

2. The one in the following link, called NVMe Driver: https://www.samsung.com/semiconductor/mi...onsumer/970pro/
3. Correct, the unallocated space became 4 different spaces, each are allocated to some purpose
4. Once the Windows installation is complete, it only restarts once. This should be the point where it should boot from SSD, but it just goes back to BIOS screen due to SSD not being shown as an option for boot. It just says the generic "Hard Drive" option
5. Yes, I did that, otherwise it would just go back to boot from USB. Again, if I remove the USB, then it just goes to BIOS screen. This shows it is not booting from SSD that I installed Windows on

@Fernando

I've ran the clean un modded bios trough the UBU tool to remove the GUID header. After I saved the bios I modded it with the UEFI Tool following the guide. Then I flashed the bios and still no PATA or PATASS. What am I doing wrong. Could it be the extension .rom what the UEFI tool automatically adds to the file name. The bios recognized it fine but I don’t know if it matters?

Greetings Marc
P.S. I’ve attached the modded Bios if you want to take a look.

just a quick update. I have now installed my PCIE->m.2 riser and plugged it in the pc in question. As im not willing to risk bricking my computer I ended up using the CloverBoot method. The guide is not completly up-to-date but its works for me and the extra boot time is allmost not noticeable.
Thank you so much for your guides

Good day.
Please help mod bios NVMe support.
ASUS P8Z77-V LX2
- Motherboard Manufacturer and Model: ASUS P8Z77-V LX2 (rev 1.00)
- BIOS Revision: 2501
- Bios Type : AMI

https://dlcdnets.asus.com/pub/ASUS/mb/LG...2-ASUS-2501.zip

Hello
I modified the bios.
I can't do it flash motherboard.

https://uloz.to/file/AgeFLAWwHyCi/a2501-7z
key: asus

@Fernando - attached is @Black_PR BIOS from 5143 - Looks OK to me, needs to be renamed to flashback name "Z77VLX2.CAP" and then flashed via USB Flashback