Help installing M.2 SSD in Mac Pro 5.1

Ivan Ebrahim

macrumors newbie
Original poster
Sep 28, 2016
16
1
Hi

i bought this: http://www.ebay.co.uk/itm/Samsung-2...873716?hash=item542d191e34:g:0QAAAOSwlV9WRF-V

and this: http://www.ebay.co.uk/itm/Up-to-270...052146?hash=item33bec71cb2:g:d64AAOSwBLlVQXxw

I have the combination installed in PCI slot 4 in my mac pro and the computer seems to recognise the adaptor at least in System Report under PCI (Card: pci44d,a802 Type: NVM Express Controller Driver Installed: Yes Slot: Slot 4)

But theres no drive showing in disk utility. Do i need drivers? Will it be possible to use this as a boot drive?

Thanks

E
 

Draeconis

macrumors 6502a
May 6, 2008
969
264
That's advertised as AHCI for some reason when it's definately an NVMe part. There was a generic NVMe OS X storage driver someone wrote, but it was never kept up to date and stopped working a while ago.

Currently, this will not work in a Mac, and certainly not as a boot volume. You'd need an AHCI model for that.
 
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pastrychef

macrumors 601
Sep 15, 2006
4,520
1,027
New York City, NY
If it's an AHCI SSD, there's nothing more you have to do. OS X should recognize it once it has been plugged in.

Here's a reference for you so you can double check to make sure it's indeed AHCI.
20150621200757-01x4la1kj04.png
 
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cosmincucu

macrumors newbie
May 15, 2017
6
0
hello,

Sorry to revive an old thread, But i have a similar issue :

I have a Samsung SSD SM951 MZHPV256HDG SSD in a mac pro 5.1 2012 model, but it is not recognised by the OS. As for PCIE adapters i have tried several :
https://www.amazon.co.uk/LyCOM-DT-1...coding=UTF8&psc=1&refRID=0Q510CXBZ2HYBARVGQBK
https://www.amazon.co.uk/gp/product/B01ELL5P4Y/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
https://www.amazon.co.uk/gp/product/B01NAV0XHX/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

It is still not seen in Disk Utility.

Any ideas why ?

P.S. I should point out that before the mac i used it with a LyCOM-DT-120 card in a HP Z620 , which has the same issue of working just with AHCI ssd's, and it worked fine.

Thank you,
Cosmin Cucu
 

saulinpa

macrumors 6502a
Jun 15, 2008
931
370
Sorry, I mis-read. So first question is to see if it shows in System Report under SATA. Also try "diskutil list" in terminal. Since it was previously used in a PC it may need its partitions cleared out.
 

cosmincucu

macrumors newbie
May 15, 2017
6
0
I am already at work, i will try tonight. The thing is i have a separate 1 TB sata disk on which i put bootcamp and windows 10, and mac OS x sees it fine.
 

JedNZ

macrumors 6502
Dec 6, 2015
433
157
Deep South
hello,

Sorry to revive an old thread, But i have a similar issue :

I have a Samsung SSD SM951 MZHPV256HDG SSD in a mac pro 5.1 2012 model, but it is not recognised by the OS. As for PCIE adapters i have tried several :
https://www.amazon.co.uk/LyCOM-DT-1...coding=UTF8&psc=1&refRID=0Q510CXBZ2HYBARVGQBK
https://www.amazon.co.uk/gp/product/B01ELL5P4Y/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
https://www.amazon.co.uk/gp/product/B01NAV0XHX/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

It is still not seen in Disk Utility.

Any ideas why ?

P.S. I should point out that before the mac i used it with a LyCOM-DT-120 card in a HP Z620 , which has the same issue of working just with AHCI ssd's, and it worked fine.

Thank you,
Cosmin Cucu

If you've got the NVMe version, check out this post for instructions on curating your own NVMe kext patch.
 

cosmincucu

macrumors newbie
May 15, 2017
6
0
Sorry, I mis-read. So first question is to see if it shows in System Report under SATA. Also try "diskutil list" in terminal. Since it was previously used in a PC it may need its partitions cleared out.
I have tried both, it does not show up.

Any other ideas ?

btw, here is a picture of the ssd as well.

 

cosmincucu

macrumors newbie
May 15, 2017
6
0
i just tried it on a pci x16 slot, and it works .... it sees all the windows partitions, etc.
So should it work just on a pci x16 slot?

(fyi i could not see it in bootcamp either)
[doublepost=1494959115][/doublepost]Is there any way the pci x4 slots would not work ?
 

saulinpa

macrumors 6502a
Jun 15, 2008
931
370
Hardware problem? Make sure there is no dirt/corrosion in the connector. The DT-120 works for me and others.

Maybe conflict with non-Apple video card? I assume you pulled all other cards.
 
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