If you have a slot left, NVME will work. Mine is installed in slot 2, and I have to place a very thin spacer between it and the RX580 next to it. But no issues. All the slots are at least x4, and for a simple NVMe - PCIe adapter, that's the maximum speed anyway. Any slot will deliver up to 1500 MBbps. I get 1400-ish.
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MP All Models PCIe SSDs - NVMe & AHCI
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Thanks for the info kohlson,
I was not sure what was the limitation output of PCI 4X slots. That explains why ,when I put my Accelsior 4M2 4TB 4 x 1TB RAID-0 by accident to 4X slot I was getting only half the output compared to 16X slot. Nice to know that even single blade in 4X gives you up to 1500 MBbps.
For larger RAID-0 sets bottom 2 slots (1, 2) 16X give you more output.
I was not sure what was the limitation output of PCI 4X slots. That explains why ,when I put my Accelsior 4M2 4TB 4 x 1TB RAID-0 by accident to 4X slot I was getting only half the output compared to 16X slot. Nice to know that even single blade in 4X gives you up to 1500 MBbps.
For larger RAID-0 sets bottom 2 slots (1, 2) 16X give you more output.
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A M.2 connector is a PCIe Express x4 miniaturised connector. So, a M.2 blade is a x4, or less lanes, device. With a PCIe v2.0 connection, a x4 device has a maximum theoretical throughput of 20Gb/s (4 lanes x 5Gb/s per lane), this translates to real world around 1450MB/s.
Accelsior 4M2 is a x8 card, have an ASM2824 PCIe switch that have only eight external lanes. So, with a MP5,1 that have PCIe v2.0 slots, the throughput is limited to the theoretical 5Gb/s per lane, 40Gb/s. The real throughput is limited to around 2900-2950MB/s, after the overhead.
With Mac Pro 5,1 PCIe v2.0 slots, the maximum expected throughput is:
| PCIe v2.0 x4 connection | ~1450MB/s |
| PCIe v2.0 x8 connection ( possible only with slots 1 and 2 ) | 2900~2950MB/s |
| PCIe v2.0 x16 connection ( possible only with slots 1 and 2) | 5900~6000MB/s |
An Accelsior 4M2 will never have throughput over ~2950MB/s (theoretical 40Gb/s), don't matter RAID or blade, it's a limitation of the x8 connection of the card. Only cards that have a x16 PCIe switch, like HighPoint SSD7101A-1, have a possible throughput up to 5900~6000MB/s.
tsialex,
Thanks for the info about the different connection speeds. I am getting around 2700MB/s in x16 slot what is about right since Accelsior 4M2 is x8 card.
OWC advertise max speeds up to 6000MB/s and looking on their website ...specs it says PCIe Lanes (x8).
New Mac Pro 7.1 has PCIe v3.0. I am sure that it is much faster bus and Accelsior 4M2 could achieve 6000MB/sec as advertised, just guessing.
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Tomorrow i receive the Sonnet 4x4 Silent (the new model) going to try it with 2 Samsung 970 Evo Plus and post the results.
My machines is a 7.1 Mac Pro 16 cores, W5700x and 1TB SSD.
My machines is a 7.1 Mac Pro 16 cores, W5700x and 1TB SSD.
Hi Tsialex, getting back to the Highpoint SSD7101A-1 card. There was something said about firmware version and that you should avoid a version that would require to send back the card to Highpoint. Can you please again explain? I would like to buy such a card.
Thanks and appreciate your time.
I'm not going to write it again since nothing changed and I already answered you about this exact topic by PM.
Please go back to my previous posts about this subject and re-read it.
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Here i have it, im just waiting for the ssd's to arrive later this day, the card itself is well made, not cheap feel at all.
So now i installed 2x 1TB samsung Evo Plus, installation was easy and no problem booting. I let blackmagic disk speed test running for almost 10 minutes, SSD never crossed 49 celcius and i didnt saw drop in performance, i imagine with the 4 spaces populated it can be faster, pretty happy with my setup now, in the future i will add another 2x 1TB to test again.
I just installed WD black SN750 into pcie slot 16x Mac Pro 5.1. I formatted the drive OS extended journaled I did super duper to copy startup drive. Restart and all good test apps working good but then go to do black magic disk speed and it tells me its a read only disc? What did I miss?
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Smoking fast. Really nice setup. Nice job
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Did you install operating system on it? If yes , are you trying to access it from outside (not currently booted). If yes than you might have permission issues.
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So... I have a question now that i made this raid, im a video editor, what chunk size do you recommend setting with this raid-0 apple software? i selected 256kb but i dont know if i made the right choise
K I think I got it right . I updated super duper and did a erase and reinstall of os extended journaled . The super duper startup drive to nvme. restart all seem s good. only getting 1500 ish speeds by hey that's better than 250.
1500 speed seems about right for Mac Pro 5.1 with PCIe ten 2.0
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256K chunk size good for video editing.
So Time machine doesn't recognize the nvme in the pcie card? Maybe it does ? I deselected all the other drives so looks like it may be working.
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Is it a single NVMe no RAID? It should work with single blade. Time Machine should see it as external drive.
In my case I have RAID-0 with 4 blades , so I am using CCC (Carbon Copy Cloner)
Just wanted to update everyone!
Bought a 1TB Sabrent Rocket NVMe with a PCIE 3 x4 card and everything is running super smoothly! I fit it in my the second to last slot right above my GPU. I’m going to use it as a scratch disk for now but maybe put an OS on it in the future.
Getting 1500MB/s read and write pretty much which is fantastic.
Bought a 1TB Sabrent Rocket NVMe with a PCIE 3 x4 card and everything is running super smoothly! I fit it in my the second to last slot right above my GPU. I’m going to use it as a scratch disk for now but maybe put an OS on it in the future.
Getting 1500MB/s read and write pretty much which is fantastic.
TechCrunch and Rene Ritchie on twitter are talking that Apple will announce a SSD kit for users self-upgrade 2019 Mac Pro SSDs, with sizes from 1TB to 8TB (1, 2, 4 and 8TB kits).
Very nice, if confirmed. Nothing on Apple site until now and no support document talking about the pairing needed by the NAND modules with T2.
Very nice, if confirmed. Nothing on Apple site until now and no support document talking about the pairing needed by the NAND modules with T2.
1TB SSD Kit for Mac Pro
The 1TB SSD Kit for Mac Pro enables you to upgrade the internal SSD storage capacity of your Mac Pro. This kit, containing two 512GB modules, replaces the current SSD module(s) in your system. Installation required.
www.apple.com
The 2TB SSD Kit for Mac Pro enables you to upgrade the internal SSD storage capacity of your Mac Pro. This kit, containing two 1TB modules, replaces the current SSD module(s) in your system. Installation required.
Note: Software reinstallation requires a second Mac running Apple Configurator 2 and a USB-C cable. Compatible with Mac Pro (2019).
Blackmagic does not have permissions to your root folder on modern macos. Just go select drive and navigate to the shared folder in Users , open it, and then run the test. should work.... Then again, it defaults to the boot drive and works for me there without that step... its only if i want to use it on another volume that i have to worry about permissions....
How critical is it to have both (matching) blades seated, w a dual (or multi-sided) blade PCIe adapter? e.g. opposed to only operating with one M.2 NVMe SSD seated in the Dual M.2 Slot?
Specifically, Syba I/O Crest SI-PEX40129 Dual M.2 NVMe Controller, with only one [1] Sabrent 512GB Rocket NVMe M.2 2280 (SB-ROCKET-512) [4Kn disk sector formatted - prior to install]?
Will MP5,1 (late-2012) NVMe boot (into Mojave) still be supported or is not recommended?
(fyi: def not a long term solution, albeit, just my current situation)
Specifically, Syba I/O Crest SI-PEX40129 Dual M.2 NVMe Controller, with only one [1] Sabrent 512GB Rocket NVMe M.2 2280 (SB-ROCKET-512) [4Kn disk sector formatted - prior to install]?
Will MP5,1 (late-2012) NVMe boot (into Mojave) still be supported or is not recommended?
(fyi: def not a long term solution, albeit, just my current situation)
Matched blades only matter for RAID.
APFS don't support RAID yet, so you don't have bootable RAID support with Mojave or Catalina. Bootable RAID still works with HFS+ and High Sierra.
With a 4-blade PCIe switched card, you can use one for boot and three for a data array.
I have that, with one NVME and one AHCI. Different sizes. Works like a charm.