Mac pro 5,1 can't not boot with Plextor M6e black edition PCI-e SSD

Question

Level 1

8 points

Mac pro 5,1 can't not boot with Plextor M6e black edition PCI-e SSD

Hello:

My SSD is Plextor M6e black edition M.2 with PCI-e Adaptor and AHCI. Although I can use M6e as a universal storage. I have no idea how to set M6e as the boot drive. I've installed a clean El Capitan into it. disk utility display it's bootable and I can select it as the target item in Startup Disk of System Preference.

But! My Mac Pro never boot with M6e, and I can't the see the disk in the Startup Manager.

Can anyone have ideas about what's going on?

Best regards

Jimmy

Mac Pro, OS X El Capitan (10.11.4), Mac Pro 5,1

Posted on May 2, 2016 12:05 AM

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Answer 1

Lexiepex

Level 6

14,102 points

May 2, 2016 12:37 AM in response to Jimmy Ursh

After a shutdown, start up while holding the Alt(option) key: it starts slowly and then displays the startup disks that can be started on, is the Plextor there? If yes can you start from it?

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Answer 2

lllaass

Level 10

210,411 points

May 2, 2016 12:42 AM in response to Jimmy Ursh

Contact Plextor. Not that in

http://www.goplextor.com/Product/Detail/M6e(A)_Black_Edition#/Spec

they only say

Operating System Supported

Windows 7 x86 / x64, Windows 8 x86 / x64, Windows Server 2008, Windows Server 2012, Linux series, Fedora, SUSE, Ubuntu

What other PCLe cards are installed?

What slot did yo install he Plextor in?

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Answer 3

Jimmy Ursh Author

Level 1

8 points

May 2, 2016 12:58 AM in response to Lexiepex

Nope, M6e doesn't appear in "Startup Manager".

I've tried to put M6e in PCI-e Slot #2 and #4. In the both cases, it doesn't work.

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Answer 4

Lexiepex

Level 6

14,102 points

May 2, 2016 1:51 AM in response to Jimmy Ursh

Do you have the raid card? afaik know, there are only two native pcle slots in your Mac model.

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Answer 5

Jimmy Ursh Author

Level 1

8 points

May 2, 2016 1:53 AM in response to Lexiepex

Nope, I have no raid card. Mac Pro 2010 have 4 PCI-E slots native.

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Answer 6

Lexiepex

Level 6

14,102 points

May 2, 2016 2:09 AM in response to Jimmy Ursh

Mmmm, you see it in DiskUtility as bootable so it is formatted correctly: GUID partition table, OS X Extended (journaled)....then starting with the Alt(0) key should see it too.... maybe check that again...

Do you have a plcle-to-usb cable? to check it externally?

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Answer 7

Jimmy Ursh Author

Level 1

8 points

May 4, 2016 10:56 AM in response to Lexiepex

I have any adapter or extra device to test these assumptions...... sad

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