Hello everyone.
I had to configure a Fujitsu Siemens Esprimo P720 E90 to boot with a Samsung 970 EVO NVME M.2 SSD harddisk, mounted on a pcie card, so I opened the post:

Modding BIOS su FUJITSU SIEMENS ESPRIMO P720 E90+ MI5W

and I tried to follow the path of modifying the bios.
I tried for a month to extract, modify and reflash the bios, making use of the CH341A device. If I connected the device to the Fujitsu motherboard in off line mode I could extract the bios but it had too many errors, as detected by the kind users of the forum who followed the post, while if I tried to work on the bios from the same motherboard, that is with the clip attached to the chip, the system did not even start. At the end I became convinced that, as pointed out by some users and administrators, the operation was very risky, if not impossible, for some OEM motherboards. I sincerely thank those who have helped me to try that method so far.
So I decided to follow the method proposed in this thread, and it was immediately successful!
The only problem is the pharaonic slowness of the boot, of more than two minutes! I tried to set the debug operation to "false", but it was already set to false, so now I really don't know what to do to fix the problem.

Does anyone have a link for how to configure the config.plist for windows 10 only? I've been fighting for weeks trying to get this to work on an ASRock x58 Extreme, nvme adapter, and an adata sx8200pro.
I can see the nvme drive and launch windows. Everything seemed somewhat fine until I installed my amd rx460 drivers. After reboot, I continue to either get bcd errors or that windows needs to be repaired. I had to manually create the bcd file on the system EFI partition to even get it to boot in the beginning. Possibly due to having additional hdds in the system. I spent about an hour configuring applications and such... Rebooted a couple of times, and then installed my video card drivers. I have managed to get into windows recovery a couple of times, but it will not fix Windows nor will it boot. I'd like for clover to ignore anything not needed for a Mac, ignore and not attempt to add other boot devices to the clover uefi, etc etc. Clover is also doing something to my bios throughout this testing that makes my computer not even post. I have to rest the CMOS in order to get it posting again.
Any advice on how to remove all these gremlins in order to have a simple, 1 Windows 10 bootable machine that doesn't attempt to hijack everything? I really don't care how optimal the booting is. I just want to boot Windows 10 on my NVMe drive, and then let Windows take over the rest.
Thank you all in advance!

@Megash0n
Hi please be aware clover is and was built as a mac osx bootloader and is therefore mostly focused around osx and various hardware emulation around osx there is some great information to be found regarding config.plist via the various mac forums, if you do find any great pages outlining the options and what they do feel free to post them back here.
With regard to the various issues you are facing please be mindful of the fact not all pci slots are the same some ports will have a higher priority within your motherboard/bios please ensure your nvme card and graphics are in the correct positions i suggest without pci lane sharing.
Clover itself cannot interact with the bios so if it's not posting it MUST be an issue with your nvme adapter card or or how your bios sees it, as i mentioned before where it is on the board.
I note the configuration of your board found here https://www.asrock.com/mb/Intel/X58%20Extreme/index.asp i have used an asrock board without to many issues myself.
Typically i only use the nvme adapter cards by JEYI which often have active cooling found on ebay and aliexpress to date i have used many of these without issue, some users here have reported issues with other brands of cards.
Most of the time from windows recovery you will need to run various commands to get windows working again rarely does the automatic thing ever work.

On a side note i suspect you are using bad drivers for your rx460 driver try a program called driver booster it will find the newest and most compatible drivers automatically.

Thank you. I will move the slots around again. In regards to the video card drivers, they were the latest available from AMD last week. It's not impossible they are causing an issue, but I'm not even getting to the windows logo now. Not sure if a video card driver would do that or not, but I can attempt to start over trying a different version. Maybe I can get lucky with duet/refind on a fresh attempt.

Sibliss, do you know why if I set the "fast" option to "true" the system enters a boot loop?
I am using Clover 5128 installed via BDU.

Would just like to say thank you very much for the F3 notification.
I was struggling getting CLOVER to boot from the USB with windows installation media, when i pressed F3 i got an extra option called "boot from EXTERNAL USB" or something, and then the boot started from the OS.

I have the motherboard MSI 990FXA-GD80 which is AM3+ and have bios 13.6
The bios can see the NVMe M.2 drive fine, but refuse to boot from it. I was even able to install the OS but got a bluescreen.

The PCIe M.2 card i use is ICY BOX PCIe card with M.2 M-Key socket for one M.2 NVMe SSD product ID: IB-PCI214M2-HSL
Drive i have added is Kingston A2000 500GB NVMe M.2 SSD / M.2 2280, PCIe 3.0 x4, NVMe, 3D NAND, up to 2200/2000MB/s, 350TBW

Going from 30-60MB/s transfer rates to 1600 READ and 1400 WRITE is such a big difference in responsiveness of the OS.

Would just like to thank the author for this article, although it should be updated as there is no 64-bit named nvme file to copy in Clover. Just a simple named file without 64.

PRIOR to using CLOVER, my NVMe mostly stated an error during Win10 installation specifying i could not install anything on it AND boot.

So i use CLOVER running from internal drive with 200MB, as SATA, and then it loads Win10 as OS.

This imo is a much better solution and far less complicated than risking bricking a bios in an attempt to make a custom BIOS.

Thnx for this. Saved me from buying a new computer when i only wanted this as extra.

I just noticed something....
After i booted to Clover, then installed Windows successfully, i got a new entry in the Bios called "UEFI: WINDOWS BOOT MANAGER" and clover is no longer primary boot device. :O

So seems being able to boot with Clover, to initialize NVMe driver installation created a new UEFI entry in BIOS?

Boof
Norway

Hi all, I just wanted to report that I was able to get this successfully working on a HP Z400.

Casing: HP Z400
Power: Corsair RM750x 750 Watt
Mainboard: Foxconn Intel X58 Chipset
Processor: Intel Xeon X5690 12M Cache, 3.46 GHz, 6.40 GT/s
Memory: 48GB DDR3 1600MHz RAM 2Rx2 PC3L-12800E ECC Unregistered (6 x 8GB)
Graphics: Gigabyte AORUS Radeon RX 580 8GB
NIC: Broadcom NetXtreme Gigabit Ethernet
Controller: Akasa AK-PCCM2P-05 PCIe x16 to M.2
Storage 1: 1TB KINGSTON SA2000M8 M.2
Storage 2: 500GB Samsung 860 Evo 2.5 inch SATA III
DVD: HP DVD-ROM TS-H353C

The whole thing was pretty painless. I did ran into an issue with Windows not installing from the USB stick using the Clover bootloader. However, when I booted from a DUET_EDK2020_REFIND USB stick, the Windows installation went fine. Once Windows was up and running, I tried the Clover USB stick again and it successfully booted to Windows. Finally, I moved the Clover bootloader to a SATA SSD and the system is now automatically booting to Windows without the Clover GUI. You can't even tell anymore that there is an additional bootloader between the BIOS and Windows. Very, very, nice! Thing of beauty!

Thanks to all who contributed to this method!!

Hi Shonk your EFI files work great i'm booting from them o problem would like to ask you if there is way of either shotening down the 5 second automatic boot or getting rid of it.
Thanks for all your work.

@Normski
In clover you can edit that by editing the config.plist file

Good day. Thank you for this forum. I bought an NVMe disk and I didn't know I would have a big problem. Finally, I managed to create a USB BOOT, through which I was able to install WIN 10. It works without problems.
Translation created through GOOGLE Translator.

MB: P5E3 Deluxe,Chipset X38, BIOS v.1502 Adapted for support
CPU: INTEL Xeon E5430 2,66/3,2GHz
RAM: 2x4GB DDR3 1600 King.
SSD: NVMe Apacer PP3480 256GB
SSD Adapter: RAIDSONIC ICY BOX PCIe M.2 NVMe SSD IB-PCI214M2-HSL
[Read]
SEQ 1MiB (Q= 8, T= 1): 1532.143 MB/s [ 1461.2 IOPS] < 5462.64 us>
SEQ 1MiB (Q= 1, T= 1): 1199.365 MB/s [ 1143.8 IOPS] < 873.62 us>
RND 4KiB (Q= 32, T= 1): 198.749 MB/s [ 48522.7 IOPS] < 638.28 us>
RND 4KiB (Q= 1, T= 1): 43.169 MB/s [ 10539.3 IOPS] < 94.43 us>

[Write]
SEQ 1MiB (Q= 8, T= 1): 1257.566 MB/s [ 1199.3 IOPS] < 6647.79 us>
SEQ 1MiB (Q= 1, T= 1): 1111.213 MB/s [ 1059.7 IOPS] < 942.47 us>
RND 4KiB (Q= 32, T= 1): 137.836 MB/s [ 33651.4 IOPS] < 922.52 us>
RND 4KiB (Q= 1, T= 1): 88.262 MB/s [ 21548.3 IOPS] < 45.97 us>
OS: Windows 10 Professional [10.0 Build 19042] (x64)
Date: 2021/02/07 14:00:18

Could someone point me to a guide that would show me how to use an internal hard drive SATA SSD to setup Clover on instead of a USB stick?

I am currently UEFI booting a USB 3.0 stick with Clover to boot Windows 10 on an NVME M.2 PCi Express adapter.

@BigE_1235
It's an option in the BDU select options>configuration then at the bottom check the tick box for fixed disks

Thank You!!!

Hallo guys, im new to this forum.
First off i appreciate your commitment to this topic. I'm impressed how helpfull some people are, and i think that should not be taken for granted.

@sibliss
I followed your post for the clover installation but i ran into a problem. I installed my PCIe SSD, set it to gpt, formated it, downloaded BDU and installed clover on a thumbdrive.
I followed your instructions to copy the NvmExpressDxe to both the bios and uefi directories and created the folders drivers32uefi and drivers64uefi with the driver in it.
Then i set up my bios like in the original post and and changed the storage eprom to uefi. I don't am able to disable CSM in the settings.

Now my problem:
I boot into clover, but i don't am able to boot the windowsinstallation drive. The option is displayed as "Boot Microsoft EFI cdboot from ESD-USB". I select it but this ends every time in and error, stating: "Error: Time out returned from cdboot.efi"
As i am really inexperienced in this regard i tried to edit the config.plist file. Specifically the key #DefaultLoader from "boot.efi" to "\efi\microsoft\boot\cdboot.efi" (I read another blog about this topic and they made something similar) but that also didn't work.
I tested the installmedia without clover too and could boot into it without a problem.

Why can't i boot into the installmedia with clover and what could i do to fix it?
This really stumbled me because many other poeple don't have a problem with this step apparently.

My System:
GA-Z87-HD3 with AMI UEFI BIOS,
Intel i7-4770k,
WD Black SN750 500GB,
Lycom DT-120 M.2 Adapter,
Kingston DDR3 RAM 8GB

@asec
welcome to the forums,

I have no definitive answer why some install usb's work and some do not i recommend just trying another usb untill you find one that works and people seem to have the most luck when they create it with teh Microsoft media creation tool.

goodluck and i hope this helps.