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Techgrampa

macrumors newbie
Original poster
Aug 3, 2021
2
0
My cMP has been transformed and upgraded: six core X5680; GT 560 video card; 48GB 1333 DDR3; 500GB internal SSD with High Sierra installed. It all works, so I decide to add USB 3.0 card. All ok.

I am just wanting to load those large sound libraries a tad faster, so I get a NVMe and PCI riser card, Viz: 1TB Crucial P5 and JEYI SK8-NEW Add On Card M.2 for NVMe Adapter to PCIE3.0 GEN3 M.3.

I insert into PCI slot 3 and power up. I know the power has been applied and fans are running, but pre-boot has been at it for more than 10 minutes. I try again with riser card moved to slot 4. Still stuck. I replace video card so I can observe the pre-boot screen and the purchase of another PCIe riser card. I reconnect components and in anticipation, pressed the power button. It chimes and the pre-boot screen appears. The progress bar starts and stop after a short while.

Is the P5 a problem example? Check it is recognised in another system:- no problem. I try booting into safe-mode having cleared PRAM, it did not boot. I spent two days seeking clarification from Crucial and the PCIe riser manufacturers that these components should work with Mac OS.

Given I am a music and software person: can any of you knowledgable folks help me trouble shoot my inability to get an NVMe-PCIe combo to exist in my music rig. I am not seeking for it to be bootable, I just need to have the many instances of Kontakt from choking as occasionally happen on a couple of arrangements, presently.

Thanks in advance for any help tendered.
 

Macschrauber

macrumors 68030
Dec 27, 2015
2,981
1,487
Germany
Thats easy, P5 is not compatible.

 

Techgrampa

macrumors newbie
Original poster
Aug 3, 2021
2
0
Thats easy, P5 is not compatible.

Thanks for the confirmation. It became obvious after trying riser card and NVMe in a couple of PC rigs. I am curious if the malady is: Apple's chosen implimentation of the PCI specs. Notwhitstanding, USB 3.1 and SATA SSD's are managing to feed a hungry sampler in the Logic project I am completing. Let me also say that I would have not undertaken this journey into cMP without the consumption of the many conversations in this forum. After 10 yrs using MBpro's for the Logic projects I sometimes do, this time it would only be financially do'able if I self refurbished a cMP. I have the horsepower and expansion which should see me out, now I am in retirement. Fondest regards.
 

tsialex

Contributor
Jun 13, 2016
13,455
13,601
Crucial SSDs are Windows centric only, with several products that are incompatible with macOS/Linux:

  • whole BX500 SATA line (works initially then crash with SMART)
  • P5 NVMe blades (don't work from warm boot/sleep)
  • P5 Plus NVMe blades (don't work from warm boot/sleep)
 
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