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The Mac Pro First Generation is an Intel Xeon-based workstation computer manufactured by Apple Inc. The first generation model includes the machines from 2006 through 2008.

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PCIe NVMe as boot device

Hi everyone,

I have Mac Pro 3.1 and I am wondering if I can use this like bootable drive with Apple SSD OWC Accelsior 1A - Apple Factory SSD to PCIe Adapter Card

Also Can I use it like bootable drive on Mac Pro 5.1 ?

At this moment I have SSD in bay 1 but want upgrade to Apple RAID card and use all bays for RAID

Thanks a lot for any ideas

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It appears not be be compatible compatibility listing

I would just go with a PCIe to SATA III (6.0 Gb/s) drive adapter with a 2.5" SSD

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I like to go with NVMe (also have one Apple SSD free at this moment). It's faster than SSD :) So if I can't use it for boot drive can I probably don't need it :(

Well it's look like I can use it only on Mac Pro 5.1:

Booting support requires that your motherboard BIOS support booting via PCIe NVMe drives. Booting on Mac Pro (2010-2012) requires macOS 10.14.6.

But how I make BIOS on 5.1 support booting via PCIe NVMe drive ?


While NVMe is faster the limits of the rest of the system will hold it back. As far as altering the systems firmware I'm not sure if that is even possible in this series.

It would take a bit of study and engineering to redo Apples efforts. Maybe its a good weekend project, I'll warn you its going to consume quite a few hours.


@danj thanks a lot, it’s look like my favourite Mac Pro is really old :( and maybe it’s really time to look for some M1/M2 :)


@danj I didn't - that is interesting but will see how "hard" will be to get macOS Ventura full version :) anyway I am now looking for Mac Pro 5.1 as I can't find RAM for 3.1 for long time (and reasonable price) and I am stuck with 14GB what isn't too much :(


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