Mac Pro PCIe Card Problem

[Chrisl33]

I purchased a NewerTech Maxpower USB PCIe card for my Mac Pro 2012, 5.1 computer running Mojave.
.
I have tried it in slot 4 and slot 3 but it is not recognized, there is power to a USB external drive but the drive does not show on the desktop or the card in the system profiler.

I tried the card in a Mac Pro 2008, 3.1 running El Capitan and the card shows in profiler and the hard drive appears on the desktop.

The problem is not the card, any ideas what could be wrong?

Any help much appreciated,
Thanks Chris

 

[krs]

I assume you have Finder Preferences checked in Mojave

 

[Chrisl33]

I assume you have Finder Preferences checked in Mojave

View attachment 32671

Yes, I have, all other hard disks show.

The card does not show in system information under PCI in Mojave but does on the other Mac under El Capitan ?

 

[pigoo3]

Here's some spec info regarding this card:

"MAXPower 4-Port USB 3.1 Gen 1 PCIe Card from NewerTech allows users to connect four USB 3.1 Gen 1 or USB 2.0 devices to their compatible Windows 7 and later or Mac OS X 10.8.5 and later system using a PCIe 2.0 x4 slot, although PCIe 1.0 x4 will work as well."

I would verify that everything mentioned is being met.

Regarding the OS versions. The description says "compatible with Mac OS X 10.8.5 and later". macOS 10.8 is on the older side (first released 2012)...Mojave (macOS 10.14) is much newer. It's possible an older product like this was never tested with Mojave...and may not be compatible with Mojave.

If all spec's are met in the description above...and only difference between your 2 Mac Pro's is the OS version...it would seem that this USB card may not be compatible with Mojave. You could also check with NewerTech to see what they say.

- Nick

 

[ferrarr]

Do you have a different working PCIe card you can test in those slots? Or can you test the card in slot 1 or 2?

 

[Chrisl33]

Do you have a different working PCIe card you can test in those slots? Or can you test the card in slot 1 or 2?

The problem was slots 3 & 4, I tried it in slot 2 and it worked fine.
I did not think there was room above the graphic card but there was, so all good.
Thank you and pigoo3 for your help.