MP All Models PCIe SSDs - NVMe & AHCI

[Canubis]

I see the Crucial P3 listed as Good in the first post.
Is the Crucial P3 Plus the same or is this a completely different ssd?

Anyone having experience with the Crucial P3 Plus, specifically the 4TB blades together with an OWC Accelsior 4M2 in a Mac Pro 7,1?

Many thanks in advance! Appreciate your insights!

 

[Trajko]

Just to confirm that Kioxia xg6 works like charm, straight away after connecting nothing extra needed fully compatible, r/w 1480/1456 on the simple adapter and heath sink, keeping low temperature, tried it with a couple of hours with handbrake. Will probably try gx8 gen 4, with doubled speeds. Probably nothing to do with the drive, but it is recognised as internal disc while I was expecting being external one! Mac Pro 5,1.

 

[basslik]

I got a quick question. I have

Syba I/O Crest SI-PEX40129 Dual M.2 NVMe​

In my 5,1 placed in the 16x8 slot.

I want to move to the next slot, which of course it's slower, 4x8.

But since the Crest is only a dual, it shouldn't matter, and achieve the same speeds?

Thanks.

 

[tsialex]

I got a quick question. I have

Syba I/O Crest SI-PEX40129 Dual M.2 NVMe​

In my 5,1 placed in the 16x8 slot.

There is no 16x8 PCIe slot.

The two x16 slots (slots 1 and 2) are PCIe v2.0 x16, with the x16 meaning that are 16 PCIe lanes available for a card to use.

I want to move to the next slot, which of course it's slower, 4x8.

Also 4x8 means absolutely nothing.

The MacPro4,1 and MacPro5,1 x4 slots (slots 3 and 4) are physically and electrically x16, but with just 4 PCI lanes available, shared from the X58 southbridge via a PCIe switch.

But since the Crest is only a dual, it shouldn't matter, and achieve the same speeds?

Thanks.

Wrong - moving to one of the two x4 slots will limit the TOTAL throughput of the card to around ~1450 MB/s and increase the latency, since now you connected to the IDT PCIe switch that connects to the southbridge, then it connects to the CPU.

So, it will work at half speed since the SI-PEX40129 is a x8 PCIe card and capable of 2800 to 2900 MB/s with a fast NVMe blade or RAID array when installed to one of the Mac Pro x16 slots.

 

[basslik]

There is no 16x8 PCIe slot.

The two x16 slots are PCIe v2.0 x16, with the x16 meaning that are 16 PCie lanes available.



Also 4x8 means absolutely nothing.

The MacPro4,1 and MacPro5,1 x4 slots (slots 1 and 2) are physically and electrically x16, but with just 4 PCI lanes shared from the southbridge via a PCIe switch.



Wrong - moving to one of the two x4 slots (slots 3 and 4) will limit the TOTAL throughput of the card to around ~1450 MB/s and increase the latency, since now you connected to the IDT PCIe switch that connects to the southbridge then it connects to the CPU.

So, it will work at half speed since the SI-PEX40129 is a x8 PCIe card and capable of 2800 to 2900 MB/s with a fast NVMe blade or RAID array when installed to one of the Mac Pro x16 slots.

Thanks Alex.

Greatly appreciate the info. Crest will remain in slot 2👍

 

[yukdave]

Decided to try a new card that came at a good price from Amazon for my Macpro 5,1. I have the ASM2824 on my Ableconn card that works great, This new card is based on the ASM2812 Chipset. Like the ASM2824, the ASM2812 does NOT depend on PCIe bifurcation. I had some spare 1TB NVME from Crucial that I wanted a home for.

RIITOP Dual NVME Adapter (ASM2812)

Dual NVMe PCIe Adapter, RIITOP M.2 NVMe SSD to PCI-e 3.1 x8/x16 Card Support M.2 (M Key) NVMe SSD 22110/2280/2260/2242/2230

RIITOP Dual NVMe PCIe Adapter x8

www.amazon.com

Ableconn PEXM2-130 (ASM2824 switch)

Ableconn PEXM2-130 Dual M.2 PCIe NVMe SSD Adapter Card - PCI Express 3.0 x8 / x16 Support 2X M.2 NGFF (M-Key) PCIe NVMe SSD for Mac & PC (ASMedia ASM2824 Switch) - PCIe NVMe Adapter Dual

www.amazon.com

 

[FabrizioR8]

6,1, E5-2697 V2, 64GB, D700, Monterey 12.7.6, FW 481.0.0.0.0

My Apple SSD bit the dust. Ordered and installed an Intel 670p 2TB on a Sintech NGFF adapter along with a heat sink for good measure.

Ever since, there have been hangs and beachballs and everything is just plain slow when it's not hung.
When Carbon Copy Cloner starts a copy, if Adobe begins updating anything, if I start MS Word...
Blackmagic speed test results have consistently been close to this: 1157 / 1084 MB/s (Read / Write).

Any recommendations to triage the hangs?
Would it be the adapter, or the drive that's causing me issues, the latest firmware???
Happy to replace the adapter and/or the drive if necessary to restore the performance.

Any suggestions would be appreciated.

 

[tsialex]

6,1, E5-2697 V2, 64GB, D700, Monterey 12.7.6, FW 481.0.0.0.0

My Apple SSD bit the dust. Ordered and installed an Intel 670p 2TB on a Sintech NGFF adapter along with a heat sink for good measure.

Ever since, there have been hangs and beachballs and everything is just plain slow when it's not hung.
When Carbon Copy Cloner starts a copy, if Adobe begins updating anything, if I start MS Word...
Blackmagic speed test results have consistently been close to this: 1157 / 1084 MB/s (Read / Write).

Any recommendations to triage the hangs?
Would it be the adapter, or the drive that's causing me issues, the latest firmware???
Happy to replace the adapter and/or the drive if necessary to restore the performance.

Any suggestions would be appreciated.

Intel 670p is known to not work correctly with Mac Pros with several unsucessful reports over the years and just one sucessful. Stick to tried NVMe models:

PCIe SSDs - NVMe & AHCI

This is a general info thread for blade SSDs that can be used in the Mac Pro. This is a WikiPost so anyone with the proper credentials may edit it. NVMe SSDs can be used as a boot drive in the MP5,1 and MP6,1 with the latest firmware installed (beginning with version 140.0.0.0.0 for MP5,1 and...

forums.macrumors.com

Total throughput of the MacPro6,1 SSD is limited by the PCIe 2.0 x4 connector for the 12+16 SSD, so, the maximum througput performance that you can get is at best ~1450 MB/s.

 

[TzunamiOSX]

A Kingston Fury Renegade 2 TB is working very well in my 6,1 for around 1 year. The SSD is also cool.