Z77 Extreme 4 NVME PCI-E SSD BOOTING!

zazzn wrote: Yes, the only thing you modify with the tool is the modules that are loaded for the UEFI. IN this case I modified the driver for booting from PCI-E with the one that they have available. It doesn't change the BIOS code at all it's like updating the Intel ME drivers, similar to this you basically add modules and drivers for the UEFI shell to load so that it can read the hardware.  I'm waiting for Asrock to use the Alpine ridge controller as well, basically the UD3 has everything I wantbut its not a Asrock board, so I'll hold out! UD3 is priced in the 120-150 range

I understand the UEFI/BIOS modification to provide NVMe support. You really did not answer my question.

When using an Intel 750 AIC PCIe NVMe SSD in my Z77 Extreme4 board, with the ASRock P2.90M Beta UEFI with NVMe support, the board will not go into the UEFI UI normally. I see a POST code of A9 IIRC, and an otherwise blank screen.

In order to get into the UEFI UI with that configuration, I must clear the UEFI first. This workaround works, but is not optimal.

My question was, when using the UEFI that you modified, and a similar configuration to mine, are you able to get into the UEFI UI normally?

Also, the Z170X-UD3 board has only two M.2 slots that supports PCIe 3.0 x4, not three.

That board has a Thunderbolt add in card connector, but does not seem to have an Intel Alpine Ridge Thunderbolt 3 controller chip on the board itself.

The first Alpine Ridge Thunderbolt controller chip was released in Q3 2015, which is after boards like the ASRock Z170Extreme7+ were released.

zazzn wrote: So I just wanted to share with everyone, that I was able to get my machine to boot a NVME PCI-E Intel. You will need to install a modified BIOS which has the correct drivers to allow booting form the NVME drive however, once done, you are on a course for smooth sailing for 1000 MB+ of SSD bliss.  You can find all the information you need here however, if you don't want to go though the trouble you can use my pre-modified BIOS here I just wanted to share my excitement with my new found loved brand of motherboard. I also noticed they have their own BETA bios for NVME support here which is pretty sick considering the board is several years old.  I'm a long term computer enthusiast and I can say without a shadow of a doubt my next board will be ASRock. I've had ABIT, ASUS, GIGABYTE, SOYO, MSI and I can say without a shadow of a doubt, I will choose ASRock again next time.  I'm waiting for ASRock to release a new z170 with Alpine ridge support and a configuration similar to the Z170x-UD3 which can support 3 NVME drives :))))

My question for you about your modified UEFI with NVMe support for the Z77 Extreme4 board is this: Can you get into the UEFI/BIOS UI with your modified UEFI version, using the Restart to UEFI program, or the standard way with the Del or F2 key? That is, with an NVMe SSD as the OS/boot drive?

I'm not sure I understand what you mean about waiting for ASRock to release a board that supports three NVMe SSDs?

ASRock currently has three Z170 mother boards that support three M.2 NVMe SSDs, the Z170 OC Formula, Z170 Extreme7+, and the Fatal1ty Z170 Professional Gaming i7.

Plus you can always use M.2 to PCIe adapter cards to use more NVMe SSDs on any ASRock Z170 board, as well as standard PCIe NVMe SSDs like the Intel 750.