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Parzival

macrumors regular
May 12, 2013
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Thank you so much for the advice, really appreciate it!

Quick question -- could I put a 1TB 970 PRO for my scratch disk, and then 3 2TB EVO Plus for the rest of my SSDs?
For a MP5,1, yes, that's what I and several others here do. We will need to confirm that with MP7,1, but it's almost certain.

So that would only work with certain PCIe adapters? No cheap (<50 usd) options? Or should we wait and see what kind of cards the nMP accepts?
 

bsbeamer

macrumors 601
Sep 19, 2012
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It’s amazing to see the number of people spending $6K+ on a machine who think ~$400 or less for a PCIe 4xNVMe blade carrier/adapter is too expensive. Want your warranty to hold up? Use products marked compatible MP7,1 or at least wait until others test the Highpoint. None of these cheap adapters should be considered, especially the ones without heatsinks.
 
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Pressure

macrumors 603
May 30, 2006
5,182
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It’s amazing to see the number of people spending $6K+ on a machine who think ~$400 or less for a PCIe 4xNVMe blade carrier/adapter is too expensive. Want your warranty to hold up? Use products marked compatible MP7,1 or at least wait until others test the Highpoint. None of these cheap adapters should be considered, especially the ones without heatsinks.

There should be no need for one as Cascade Lake-W supports PCIe bifurcation. It’s just a question if the MP7,1 supports it.
 

tsialex

Contributor
Jun 13, 2016
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It’s amazing to see the number of people spending $6K+ on a machine who think ~$400 or less for a PCIe 4xNVMe blade carrier/adapter is too expensive. Want your warranty to hold up? Use products marked compatible MP7,1 or at least wait until others test the Highpoint. None of these cheap adapters should be considered, especially the ones without heatsinks.
$6000+ on a MP7,1 and then buying a $19.99 Chinese garbage PCB…
 

tsialex

Contributor
Jun 13, 2016
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So, then point out why that isn't the best choice? This is a forum, no? People come here to ask stuff they don't know...
You are buying a $6000+ Mac, then you gonna buy the cheapest Chinese adapter to use inside it?

These cheap Chinese no-name adapters are garbage. If you need to buy an adapter for less than $50 now, at least buy a kryoM.2, that have a reputable brand making it and it's a decent product. Don't buy no-name Chinese adapters that sometimes are not cut out correctly during the PCB cut process - this is the simplest aspect of all productive process and they don't even get it correct.

The first post here has a list of what works with Mac Pros, we are compiling this list for the last two years, testing everything.
 

bsbeamer

macrumors 601
Sep 19, 2012
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Even USB-C NVMe adapters (like Pluggable) are better than many of those cheap PCIe ones. First quality standard - if it doesn't include a heatsink (and a good one) it isn't worth buying.

https://www.amazon.com/dp/B07N48N5GR

If the good quality adapters are too rich for your tastes, just look at SATA SSDs. They're in ~500MB/s range, run a lot cooler, larger capacities, and a lot more options for connection via PCIe, USB3/C, or TB3.
 
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tsialex

Contributor
Jun 13, 2016
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accelsior-4m2-hero.jpg


Added OWC ACCELSIOR 4M2 to the first post. It's a x8 card, with the same PCIe switch as IO Crest IO-PCE2824-TM2 (aka Syba SI-PEX40129).

  • OWC ACCELSIOR 4M2 Supports four (seems to require single side M.2 blades, to be confirmed) 80mm M.2 blades. Uses x8 ASMedia ASM2824 switch. Heatsink over the blades and PCIe switch. It's a PCIe 3.0 x8 card, ~2900MB/s with MP5,1 PCIe 2.0 slot1 and slot2 and double that with MP7,1 PCIe 3.0 slots.
 
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H. Flower

macrumors 6502a
Jul 23, 2008
759
852
I just ordered (4) 2 TB Evo plusses, with the sonnet M4 card, for an editing drive for new Mac Pro.

Will either RAID 5 or RAID 0 it and TM backup with a USB C spinner.

Excited to see what speeds it will reach....
 
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OkiRun

macrumors 65816
Oct 25, 2019
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tsialex

Contributor
Jun 13, 2016
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Question ~
When using the https://www.owcdigital.com/products/accelsior-4m2, it is simply a matter of directing the saving of files to this device specifically; it will be listed among the possible storage locations? The Apple installed SSD will handle defaults to the desktop?
It's just another drive, or drives if you are using it without RAID. No difference whatsoever from a Mac with multiple disks.
 
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bsbeamer

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Sep 19, 2012
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Bear in mind that OWC has no present plans to sell an empty 4M2. So when you buy one, you're going to get 4 x 256G NVMe drive in it, whether you want them or not.

Not sure @tsialex is "recommending" the OWC card, just mentioning it's compatibility. Believe the overall recommendation is still the HighPoint card since it has few (if any) blade restrictions for size and double-sided.
 

bsbeamer

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Sep 19, 2012
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tsialex

Contributor
Jun 13, 2016
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Saw that as well. The rep I spoke with this morning stated they clearly had no intentions of offering an empty one. He could have been mistaken, though you'll note there's no way to select that configuration on the MacSales website.
Anyway, I added it here because people are interested in this card and OWC hides it very cleverly that is a x8 card.

It's overpriced, but people wanting a fan less solution may go for it. HighPoint SSD7101A-1 frequent Amazon promos for $275~300 is a much better choice.
 

jasonmvp

macrumors 6502
Jun 15, 2015
422
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Northern VA
It's overpriced, but people wanting a fan less solution may go for it. HighPoint SSD7101A-1 frequent Amazon promos for $275~300 is a much better choice.

Yep, I agree. The HighPoint or Sonnet cards are the higher-performing ones but may include a bit of fan noise with the device. Having choice is good. Two HighPoint cards stacked with 4TB NVMe drives.... Hmmm... seriously expensive, but drool-worthy.
 

tsialex

Contributor
Jun 13, 2016
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