I don’t think I have the compatibility mode in my BIOS, it’s legacy or UEFI only. I attached a screenshot of the pci options.

I tried reloading the system after confirming I wasn’t in legacy mode and unfortunately it keeps showing the PATA :SS drive but not booting from it. It shows it both in the BIOS and also as a boot option in the F11 boot menu. This is happening with both Centos6 and 7. I’m pretty sure it’s not on the OS level but I could be wrong. So strange it shows the drive but can’t seem to boot from it.

As it has been stated a thousand times on this forum before you can not boot from PATA:SS ! Trust me you need to create a UEFI boot entry if in fact your OS is installed in UEFI mode, and just like CodeRush has stated if its installed in legacy mode you will not be able to boot.

Interesting, we’re trying to mod the OS now to see if we can get somewhere. Thanks for the tip

I have a suggestion you can try.

I recently got NVME working on two old boards, one was a fresh install where the Windows Boot Manager entry was automatically created by the windows installer, and the other was a migration from mbr on sata to gpt on nvme. I used Macrium Reflect free to do the conversion and cloning for that one. It was a somewhat manual process where DISKPART was used to create empty EFI and MSR partitions, and then image over just the c:\Windows partition to the remaining space on the drive, from a previously created image file.

The last step is to use the Macrium rescue media (Windows PE variant) to populate the EFI partition by using the Fix Boot Problems tool. This tool also seems to have created a boot entry for me called UEFI: Intel 760p serial no... I get that to boot from on my migrated OS install versus Windows Boot Manager on my fresh install. Obviously the boot entry comes from somewhere, is it in NVRAM, or in a file on the EFI partition, and it has to be created by something. That was my takeaway from the experience.

Ok, I don't know if that will help you. If that works for you great, otherwise it sounds like the right answer is to use the EFI shell as previously suggested.

Hi,

I just wanted to report success getting NVME boot to work on two old AM3+ boards.

Gigabyte GA-990FXA-UD3 R5 F1 bios and GA-970A-DS3P FX F2 bios.
With NVMEXPRESS DXE 4 and UEFITool.

Edit:
Max performance is 1200 MB/s read and 618 MB/s write with Intel 760p 128GB on PCI-Express 2.0 x4 slot.
But the PCIe 2.0 isn't the bottleneck with this drive. It is starved for flash chips/channels.
A larger drive would have more flash channels and be even faster.

It was still a worthwhile upgrade in my opinion, despite the platform's limitations.

Hi Fernando, CodeRush,

Success! We were able to reinstall the OS and then modify the CentOS7 grub boot line. We also learned we couldn’t just install the OS from IPMI or even from CD - we had to use the KVM spider, go into the BIOS, and select “Boot override UEFI CD”. Now when the server is rebooted, we get taken to the UEFI shell and just have to type in “exit” which is no big deal. Server then boots up ok.

We ran a non compressed DD speed test. When the size = 250M, speeds
are 832MB/s, when 1GB, 936MB/s. Just amazing.

Thanks so much Fernando, CodeRush for your help on this!

Hi.
I posted a few weeks ago that I'd like to modify my Asus P8Z77-V-Deluxe motherboard to support NVMe boot option. I only have PCIe 2.0 x4 available as both of my PCIe 3.0 x16 are occupied by GPU's.
I plane to buy M.2 NVMe drive with PCIe Adapter.

I was able to modify the latest BIOS P8Z77-V-DELUXE-ASUS-2104.CAP as per instruction. I'm going to use the EZ BIOS method to flash .CAP file. I used the UBU tool to rename the file to Z77VD.CAP.

However, after reading ahead, I got confused and I have a few questions:

1. Under "Installation of the OS onto the NVMe SSD"

If not already done, you can now insert the NVMe SSD resp. its M.2>PCIe adapter into the M.2 port resp. PCIe slot, which offers the best possible performance and doesn't share the PCI lanes with other devices (please look into your mainboard manual).
Important:
The "BOOT" section of the UEFI BIOS and the shortcut to the "Bootable Devices" will not show the NVMe SSD, although it may be bootable!
After having installed the NVMe supporting OS in UEFI mode onto the PCIe/M.2 connected SSD, you will see the new bootable system drive listed as "Windows Boot Manager".

Q1: How can I install the OS over the NVMe drive if it's not shown as bootable?

Q2: "Save the important data, which are currently on the NVMe SSD." Which important data? I'm buy new NVMe drive. Should I be doing something on that drive prior to trying to install the OS?

Q3: "Side note: Some users reported, they had to disable the ASMedia SATA Controller within the "Storage Configuration" section to be able to boot off the NVMe SSD." - So this renders the ASMedia SATA ports as permanently non-usable if wanting to boot from PCIe NVMe?

Q4: I have overclocked PC. May I restore my BIOS settings after flashing the modified BIOS? they are both of the same version, 2104.


Thank you.

just registered to say thank you.

my Samsung 970 Evo Works & boot perfectly with the Gigabyte GA-Z97X-UD5H rev1.0 BIOS F7.

Zitat von gil im Beitrag #3351

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Hi.

I posted a few weeks ago that I'd like to modify my Asus P8Z77-V-Deluxe motherboard to support NVMe boot option. I only have PCIe 2.0 x4 available as both of my PCIe 3.0 x16 are occupied by GPU's.
I plane to buy M.2 NVMe drive with PCIe Adapter.

I was able to modify the latest BIOS P8Z77-V-DELUXE-ASUS-2104.CAP as per instruction. I'm going to use the EZ BIOS method to flash .CAP file. I used the UBU tool to rename the file to Z77VD.CAP.

However, after reading ahead, I got confused and I have a few questions:

1. Under "Installation of the OS onto the NVMe SSD"

If not already done, you can now insert the NVMe SSD resp. its M.2>PCIe adapter into the M.2 port resp. PCIe slot, which offers the best possible performance and doesn't share the PCI lanes with other devices (please look into your mainboard manual).
Important:
The "BOOT" section of the UEFI BIOS and the shortcut to the "Bootable Devices" will not show the NVMe SSD, although it may be bootable!
After having installed the NVMe supporting OS in UEFI mode onto the PCIe/M.2 connected SSD, you will see the new bootable system drive listed as "Windows Boot Manager".

Q1: How can I install the OS over the NVMe drive if it's not shown as bootable?

Q2: "Save the important data, which are currently on the NVMe SSD." Which important data? I'm buy new NVMe drive. Should I be doing something on that drive prior to trying to install the OS?

Q3: "Side note: Some users reported, they had to disable the ASMedia SATA Controller within the "Storage Configuration" section to be able to boot off the NVMe SSD." - So this renders the ASMedia SATA ports as permanently non-usable if wanting to boot from PCIe NVMe?

Q4: I have overclocked PC. May I restore my BIOS settings after flashing the modified BIOS? they are both of the same version, 2104.


Thank you.

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