SSD Blade Drive for "Classic" Mac Pro

Maybe a ba blade SSD since the PCle information should include a description of the SSD as well as its PCle card. You only show the card.

I have the OWC PCle blade SSD in my 2009 Mac in slot 4 and it work fine. However, I can't get the PCle information, like you, in either Yosemite or El Capitan. I just get the error like you

Thanks for that info, could indeed be a bad blade although brand new. will maybe try Samsung support as a last gasp.

Any updates on your install?

I've tried the Lycom DT-120 and Sedna 2-Port cards with a Samsung 950 PRO and nothing shows up in my Mac Pro 5,1.

Are these working as plug-and-play solutions for anyone?

can you link please the exact items that you bought, the ssd and the adapter, I just bought an Mac Pro 2010 6 core 3.33ghz and those speed results are exactly what I am looking for ;)

CAn you link please the adaptor and the ssd that you bought ?

Can anyone confirm if it would be possible to boot into linux and windows with the lycom and samsung m2 combo or any other pcie ssd configuration on the classic mac pro (2012)?

Greetings and thanks for being such a valuable contributor to the communities.

I've been using a 512gb Samsung SM951 AHCI blade but getting write speeds around 130 MB/s. I've installed the blade with a Lycom DT-120 M.2 PCIe 3.0 x4 adapter. My read speeds are faster around 1200 MB/s. I've tried the card in slot 2 and slot 3. Today I enabled trim to see if that would boost things a bit.

When I run First Aid in Disk Utility it says the drive is ok. But when I used DriveDx to see if I could find any issues it identified the following as failing: Uncorrectable Error Count w/a raw value of 683,275 and a status of 32%. It also gave a warning on Retired Block Count with a raw value of 66 and a status of 97%.

Seems like I need to contact Samsung but if you or anyone have any suggestions, I'm all eyes.

Thanks!

Once you enable TRIM, newly deleted blocks can be freed.

But to get rid of old deleted data start up in Safe Mode. safe mode does one pass of boot drive repair as it starts up, and honors TRIM in the process. you can just restart in regular mode after that is you like, then test again.

Thanks, Grant!

The blocks have apparently been freed though they may still be in chains. Now I'm getting a much faster write speed of 700 MB/s though my read speed has dropped to the 700 range as well. That's plenty fast for me but curious why I'm not seeing the 1400 MB/s others are posting.

A bit more concerning -- given my lack of understanding -- is the Uncorrectable Error Count which has not budged. Would you recommend I contact Samsung and see if they can send me a replacement?

SSD drives are typically "over-provisioned", which means they have more blocks available than they let you use, until some start to show up bad. So in general, it is not a worry.

But if the 32 percent number indicates how many total blocks are bad, that is a worrying number, and it may be worth contacting them for advice.

The top two slots on the 2009 and later Mac Pro silver tower are 4x slots, even though they have "full size" connectors in them. Apple says these connectors are used to provide physical support for larger cards.