Evening gang!
Well guess what ?!!! Samsung PM961 does WORK on Macbook Pro Retina 15" Mid-2014!!!!
I tried it again with another adapter and another PM961 (Lenovo model MZSLW1T0HMLH-000L1) 1TB SSD drive (not 512mb) and although I had to use terminal + diskutil to format the drive, it then appeared in Disk Utility and I was able to install High Sierra to it.
That's Great
thanks a lot for your update !
What I got:
- Read Speed : 1500 MB/s
- Write Speed : 1200 MB/s
Don't know why the read speed is half of what it should be... ?? Any clues?
This is working in 4x Pci-E Lanes instead of 2x like the original Apple AHCI drive (non NVME).
Screenshots attached.
Maybe it's my fault... The first version of the SSD upgrade tables I published were incorrect on the speed for the late 2013-mid 2014 MBPr 15" : they "only" have 4x 2.0 PCIe lanes. Only the mid 2015 has 4x 3.0 PCIe lanes...
Well, 1500 MB/s is quite a great speed thought !
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But again, if its not showing up on disk utility, because its not formatted to something OSX recognizes, it would still show up on system details under NVMExpress, if the hardware is not a problem?
Hello,
sorry for your problems. Yes, the 960 EVO should definitely appear in the NVMExpress line of System informations, regardless of High Sierra's buggy Disk Utility which doesn't recognized any blank disk.
As you have stated, you have the correct BootRom version for your early 2015 MBPr 13" (MBP121.0171.B00).
So there seems to be, in your case, a hardware default. Maybe the cableCC adapter ! I'll may purchase one to confirm it doesn't work. To this time, unless I'm wrong, only ChenYang and Sintech M.2 to apple 12+16 adapters have been confirmed.
I've got a new/exchanged Evo 960 on the way, and an adapter from ChenYang. The Kapton tape did cover the back of the pins... as I replied to the above post... I never could get any recognition of the Evo 960 in system details NVMExpress - and of course in disk utility... I even went as far as reinstalling Sierra, and downloading NVMe master patch/Kext utility, and following the procedure that has led to some success in getting NVMe recognized in Sierra..
Again, sorry for your problems with the cableCC adapter. Hope the ChenYang will work.
As for Sierra, don't loose time : it will never recognize the Samsung 960 Evo because it can't be formatted in 4K blocs.
As a reminder, here are the known NVMe SSD able to be formatted in 4K and work with both Sierra 10.12 and High Sierra 10.13 (but they NEED the updated BootRom in every case) :
- Kingston KC1000
- WD Black M.2
- Toshiba XG3-XG4 (maybe OCZ too ?)
Here are the NVMe SSDs known to only be able to work in 512B blocs and work only with High Sierra
- Samsung PM951
- Samsung SM951
- Samsung Evo 960
- Samsung Pro 960
- Intel P600
And as a reminder the Kingson HyperX are more expensive than NVMe SSDs, and not easy to find, but they are AHCI...
Do any Samsung EVO 960 1.0TB M.2 users know if 4k block formatting works? Sorry if this has been mentioned
I plan to purchase this:
https://www.bestbuy.com/site/samsun...ate-drive-for-laptops/5678807.p?skuId=5678807
The 960 Evo can't be formatted in 4K blocks. So it can't work with Sierra. But it works very well and very fast in 512B blocs with High Sierra (~2200MB/sec sustained read on a PCIe 3.0 capable mac, write speed depends on the capacity : 1200MB/sec for a 500 GB)