Contribute
Register

U.2 SSD (PCIe) showing up in BIOS, but not macOS

Status
Not open for further replies.
Joined
Jul 4, 2010
Messages
70
Motherboard
Gigabyte Z390 DESIGNARE + Clover
CPU
i9-9900K
Graphics
RX Vega 64
Hey guys. Thanks in advance for your help.

Just installed a U.2 SSD drive with a PCIe card and Sierra isn't recognizing it, either in disk utility or Disk Sensei.

Do I have to do anything special for this to work?

I was just using the PCI slot for another card, so I know that isn't the issue.

Here's the hardware:

SAMSUNG 3.84TB PM983

StarTech.com U.2 to PCIe Adapter
https://www.amazon.com/gp/product/B072JK2XLC/?tag=tonymacx86com-20

Motherboard: ASUS Z97-DELUXE
https://www.amazon.com/gp/product/B00TXBP1YM/?tag=tonymacx86com-20

Edit: The card is plugged into the 2nd PCI 3.0 x16 slot - graphics card is in the 1st x16 slot. Could it be a BIOS thing?

Thanks again!
M
 
Last edited:

Gigamaxx

Moderator
Joined
May 15, 2016
Messages
6,513
Motherboard
GIGABYTE X470 Arous Gaming 7 WiFi
CPU
Ryzen R9 3900X
Graphics
RX 480
Mac
  1. iMac
Hey guys. Thanks in advance for your help.

Just installed a U.2 SSD drive with a PCIe card and Sierra isn't recognizing it, either in disk utility or Disk Sensei.

Do I have to do anything special for this to work?

I was just using the PCI slot for another card, so I know that isn't the issue.

Here's the hardware:

SAMSUNG 3.84TB PM983
(Don't worry, found on eBay new for cheaper, from a reputable seller)

StarTech.com U.2 to PCIe Adapter
https://www.amazon.com/gp/product/B072JK2XLC/?tag=tonymacx86com-20

Motherboard: ASUS Z97-DELUXE
https://www.amazon.com/gp/product/B00TXBP1YM/?tag=tonymacx86com-20

Edit: The card is plugged into the 2nd PCI 3.0 x16 slot - graphics card is in the 1st x16 slot. Could it be a BIOS thing?

Thanks again!
M

Check around in your bios for NVME support and check to see if a bios update may address it.
 
Joined
Jul 4, 2010
Messages
70
Motherboard
Gigabyte Z390 DESIGNARE + Clover
CPU
i9-9900K
Graphics
RX Vega 64
Edit: nevermind
 
Last edited:
Joined
Jul 4, 2010
Messages
70
Motherboard
Gigabyte Z390 DESIGNARE + Clover
CPU
i9-9900K
Graphics
RX Vega 64
Okay, updated my BIOS to latest, and it's seeing the NVMe PCIe SSD under the BIOS --> Advanced --> Generic NVMe PCIe SSD Configuration Data:

403171


Although I don't see it in Advanced --> NVMe Configuration - but not sure if I should be:

403173


Despite it being recognized by the BIOS, the drive still doesn't show up anywhere in macOS.
 
Joined
Jul 4, 2010
Messages
70
Motherboard
Gigabyte Z390 DESIGNARE + Clover
CPU
i9-9900K
Graphics
RX Vega 64
Thanks. Any ideas to enable NVMe?

Edit: I may order a U.2 --> M.2 convertor and try that instead of PCIe.
 
Last edited:
Joined
Mar 7, 2011
Messages
55
Motherboard
Gigabyte W480 Vision D
CPU
W1290P
Graphics
5700XT
Mac
  1. MacBook Pro
Mobile Phone
  1. Android
Thanks. Any ideas to enable NVMe?

Edit: I may order a U.2 --> M.2 convertor and try that instead of PCIe.

Did you ever get this problem resolved? I'm considering putting a PM983 in a genuine Mac Pro (2012) using a U.2 -> PCIe riser, but compatibility issues such as these give me pause.

By chance does MacOS see it as a secondary drive? Also, what version of MacOS are you using? I hear Sierra is picky. High Sierra is less so, but Mojave might be the most cooperative.
 
Last edited:
Joined
Dec 25, 2019
Messages
1
Motherboard
I still didn't read
CPU
the RULES
Graphics
so ignore me
I have a Sumsang Pm983 1.92t u2 with a pcie card. MSI X470 Gaming Pro Hackintosh 10.14.6 recognized it at the start , but it's easily to drop out when using
 
Joined
Jul 4, 2010
Messages
70
Motherboard
Gigabyte Z390 DESIGNARE + Clover
CPU
i9-9900K
Graphics
RX Vega 64
Did you ever get this problem resolved? I'm considering putting a PM983 in a genuine Mac Pro (2012) using a U.2 -> PCIe riser, but compatibility issues such as these give me pause.

By chance does MacOS see it as a secondary drive? Also, what version of MacOS are you using? I hear Sierra is picky. High Sierra is less so, but Mojave might be the most cooperative.

Never did, returned the drive. It could be because I'm using Sierra.
 
Status
Not open for further replies.
Top