Can't install or boot Windows 10 from separate PCIe NVME M.2 on Mac Pro 5,1?

[Naeltapia]

Hi

I also have the same question, can I run windows 10 on the same pci nvme adapter? in different partitions

Thanks

 

[cococheaf]

No, will not because you can't use bootcamp to partition the disk.

 

[handheldgames]

No, will not because you can't use bootcamp to partition the disk.

Just to clarify history... When running windows from NVMe, were you running a cMP ROM that had the NVMe driver added manually or included from Apple?

 

[w1z]

This is now possible with OpenCore via Startup Disk and the results are consistent - https://forums.macrumors.com/threads/opencore-on-the-mac-pro.2207814/post-28170108

 

[Emperor Epitaph]

No, will not because you can't use bootcamp to partition the disk.

I think he meant using disk utility to split the NVME drive into 2 separate partitions one for macOS and the other for bootcamp

 

[Emperor Epitaph]

Just to clarify history... When running windows from NVMe, were you running a cMP ROM that had the NVMe driver added manually or included from Apple

 

[tsialex]

I think he meant using disk utility to split the NVME drive into 2 separate partitions one for macOS and the other for bootcamp

Windows10 is only compatible with NVMe drives if installed via UEFI. BootCamp is CSM/BIOS.

 

[tsialex]

MacPro5,1 firmware has native support for NVMe drives since 140.0.0.0.0, BootCamp not supporting NVMe drives has nothing to do with Mac Pro firmware, it's a Windows limitation.

 

[Emperor Epitaph]

I never heard of that before could you clarify ?

Windows10 is only compatible with NVMe drives if installed via UEFI. BootCamp is CSM/BIOS.

So there we go that should answer OP’s question right ? You simply can’t do it. OP should probably close this thread since the cMP does not have a UEFI BIOS.

 

[tsialex]

I never heard of that before could you clarify ?

Windows 10 can be installed into UEFI or BIOS/CSM computers, when installed to a CSM/BIOS computer, NVMe drives are not supported at boot time.

When you install Windows 10 via DVD, it's CSM/BIOS mode, while when you install via USB it's UEFI.

So there we go that should answer OP’s question right ? You simply can’t do it. OP should probably close this thread since the cMP does not have a UEFI BIOS.

Not so simple, while MacPro5,1 is an EFI Mac and have incompatibilities with some of the Windows 10 UEFI requirements, like not supporting SecureBoot at all, it's compatible enough that a Windows 10 UEFI install "works".

The problem is that you have to protect the Mac Pro BootROM from all the mess SecureBoot can and will make inside the BootROM using OpenCore. That's the only way to have NVMe support and Windows 10 UEFI securely.

Most people just prefer to install Windows 10 to a SATA SSD.

 

[Emperor Epitaph]

Not so simple, while MacPro5,1 is an EFI Mac and have incompatibilities with some of the Windows 10 UEFI requirements, like not supporting SecureBoot at all, it's compatible enough that a Windows 10 UEFI install works.

The problem is that you have to protect the Mac Pro BootROM from all the mess SecureBoot can make inside the BootROM using OpenCore. That's the only way to have NVMe support and Windows 10 securely.

Most people just prefer to install Windows 10 to a SATA SSD.

You know I actually wouldn’t mind going through the hassle of doing that. Is there a guide on YouTube for since or already a thread that I could follow ?

 

[tsialex]

You know I actually wouldn’t mind going through the hassle of doing that. Is there a guide on YouTube for since or already a thread that I could follow ?

See the OpenCore thread here on Mac Pro forum.

 

[Emperor Epitaph]

See the OpenCore thread here on Mac Pro forum.

Link ?

 

[tsialex]

Link ?

Post #29 has the link already.

 

[yyyccc]

OpenCore window 10 and macOS on single nvme with adapter