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Old 07-22-2019, 11:13 AM
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Bob L Bob L is offline
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Join Date: Apr 2005
Location: Denver, CO
Posts: 631
Default Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave

Quote:
Originally Posted by Darryl Ramm View Post
Please provide links to articles pointing out possible issues so it helps folks. I am
Not aware of any single drive issues with those cards, but that does not mean they don’t exist.

<snip>
Lance may have seen this on the Amazon listing....

"John Wolf
2.0 out of 5 stars

Fails on Mac Pro with only one SSD blade installed.
June 15, 2019
Verified Purchase

I purchased the card to get the maximum performance out of a Samsung 970 Pro NVME on a classic Mac Pro. Normally, an NVME blade installed in a classic Mac Pro slot can only reach 1500MB/sec due to the gen 2 PCIe slots that the cMP has. With this card installed in a 16x slot, it can combine 8x gen 2 to create 4x gen 3 speeds. With a blade on this card, I could reach over 2900MB/Sec from the same 970 Pro. Problem is, with only one blade installed, it will hang and then restart the Mac when copying large files. I could have purchased another SSD, but knowing that the card is flakey with just one led me to return the card... I just couldn't trust it. They also included the wrong screw sizes for the NVME standoffs."


Personally, I wrote this off, but make your own judgement.
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