MP 7,1 Mac Pro 2019 - No Apple SSD Module

[Significant1]

It has both NAND chips on the back of the motherboard. I haven't seen it powered up, but apparently it switches on to a black screen with text directing to apple support.

Is this just a case of booting into recovery and reinstalling the OS?

You can check the different possibilities here and how to solve them:

If your Mac doesn't start up all the way - Apple Support

What to do if your Mac gets stuck on a screen during startup.

support.apple.com

 

[Regulus67]

I have one of these on hand that's got all components except the storage modules.

I haven't seen it powered up, but apparently it switches on to a black screen with text directing to apple support.

Is this just a case of booting into recovery and reinstalling the OS?

Now this query is stranger by the minute.
Do you own this Mac Pro? If you do, and have it... Try powering it on and see if it boots.
If it does not. You could try booting into recovery mode. If that fails, you might have to use DFU-mode

Until a NAND module, or a pair, is correctly installed, configured and the firmware flashed via Apple Configurator, yes.

 

[Tony Danger]

Now this query is stranger by the minute.
Do you own this Mac Pro? If you do, and have it... Try powering it on and see if it boots.
If it does not. You could try booting into recovery mode. If that fails, you might have to use DFU-mode

It's at work. I don't have access to it as of yet, just going from info from another person. He said it boots to a black screen with apple support on it. So I'd assume it's one of the 3 versions in the link above (folder, stop or globe). I thought without the NAND modules it won't even power on?

 

[Tony Danger]

Edit: yep it’s the ? Folder icon

 

[Regulus67]

Edit: yep it’s the ? Folder icon

Sounds like they wiped the partition. If you can get to Disk Utility, it will let you format it and install macOS.
If not, you need to use DFU mode with Apple Configurator. And follow the Apple guide steps.

How to revive or restore Mac firmware - Apple Support

Rarely, a Mac with Apple silicon or the Apple T2 Security Chip might stop responding and need to be revived or restored by another Mac.

support.apple.com

After a successful macOS install, you can reboot and install a different macOS version if you wish. As you then have an administrator account registered on the machine