Yes it is
Thank you for confirming my decision. I'll be ordering kapton tape from eBay and an nvme drive from my local computer shop.
Yes it is
For my information, did you protect the back of the sintech adapter with some tape ? (so that the pins at the back are not too close to the shield)
The Samsung 960 Evo is 4K block-aware.
...that the samsung 960 evo has 512b logical sectors but 4096b physical sectors. So maybe it can be reformated to have both physical and logical sectors of 4096b size. Could you try the same that you did with your WD black. I would be really grateful.
...I followed the procedure for non-apple SSD install and I'm also stuck with the SSD not appearing in Disk Utils. Disabled SIP (System Integrity Protect).
I will now try the "diskutil" command line and see if the drive is detected. Tetet, can you please try this too?
Your problem may occur because of the SSD taking too long to be ready at startup...
I think that is a big problem. Once I tested without any protects of adapter with some kind of M.2 SSD(AHCI, NVMe) and retina MacBook Pro (13 late2013, 15 mid 2014, 15 mid 2015), some kind of Kernel panics had occurred suddenly. So I protect using silicate resin over the pins near Mac's motherboard connector. Now I have not found any kernel panics.
I hope that the manufacturer should improve the adapter and more many people could try to challenge.
Hi @imprimis1 and @maenpaa24,
I was not able to format the Samsung 960 Pro to 4K sector using nvme-cli, but I did it to WD Black 256GB. However, Samsung 960 works flawlessly with my MBPr 15 late 2013 in macOS HS.
What ssd do you use in your late 2013 mbpr ? any sleep issue with it ? thanks.
My case:
MacBook Air 13 Mid2013 960 Evo 256GB re-boot NG sleep OK
MacBook Pro retina 13 Early2015 960 Evo 256GB re-boot OK sleep OK
My adapter is protected by silicate resin over the pins near Mac's motherboard connector. No kernel panic is found.
Yes, right.
The write speed is better on small files, but on 5 GB test size it gives 2600MB/s read 750 MB/s write
Hi @t0mX,
For Samsung PM961, here are the things I have tried.
Phase 1:
1. Update the OS to HS.
2. Disable SIP
3. Tape the adapter like crazy, then put pad at the bottom.
4. Disk utility still cannot see it in command line after booting from installation image.
5. I installed Linux on a flash drive, then boot the machine to Linux. Still cannot see it in fdisk nor nvme-cil.
Phase two:
6. I raged to purchase a new adapter, a Samsung 960 Pro 256GB, a WD Black 256GB, a AHCI Samsung SM951, a
Sonnet Echo Express SE Thunderbolt to PCIe box, and an M.2 to PCIe card.
7. AHCI Samsung SM951 works right out of the box, which also confirms both adapters are fine.
8. WD Black and Samsung 960 Pro was working after some 10-20 times of rebooting and many other tweeks using the M.2 to PCIe card and PCIe box, they both worked. But there is still no luck for PM961.
9. I left WD Black and Samsung 960 Pro, and returned everything else.
However, the WD Black's write speed drops to around 250MB/s after a few test, while the read is steady at 1400MB/s (limited by 4* PCIe 2.0 speed). I am going put more tape and glue for the next round.
I didn't have such problem at all, but it could be the same thing as the problem of wakeup from sleep, really...
Your problem may occur because of the SSD taking too long to be ready at startup...
For my information, did you protect the back of the sintech adapter with some tape ? (so that the pins at the back are not too close to the shield)
My word would not be to stay away from samsung drives. They definitely are the fastest, but there still are issues on 2013-2014 macs.
If you have a 2013-2014 mac and can't wait, take an WD, Intel, Kingston or Toshiba NVMe SSD. They are slower than Samsung SSD but they are still faster than OEM Apple drives, and way, way cheaper...
If you have a 2013-2014 mac and can wait a little, wait : there are still lots of tests being processed.
If you have a 2015 mac, go for 960 Evo or Pro...
Polaris Samsung drives did have some issues with PC motherboard in late 2016-early 2017, which were partly corrected with the 2B7QCXE7/2B6QCXP7 firmware update. Some PC users continue to have issues, maybe a firmware update will come ? I can't say...
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Yes it is
The WD seem to suck. I feel the intel is the best compromise, unless someone thinks otherwise ?So back to my first question, the specific models of WD, Intel, and Kingston have no sleep or reboot issue with 2013~2014 mbpr? Whereas samsung's are still showing issues?
Again, really appreciate your hard work !
The WD seem to suck. I feel the intel is the best compromise, unless someone thinks otherwise ?
I mean that if you make a bit of self research before buying an ssd, and read any test on internet about the WD, they all say that the performances are very low. Unlike the intel. Hence my comment.And by “suck” you mean...?
I'm glad you found a use for your PM961!Hey Tetet,
On my side, I can confirm that my PM961 is working flawlessly with a M.2 to PCI-E adapter in my PC, so in the end, if you have tried a 2nd M.2 adapter and it's a no go, I believe the issue is Apple software / Samsung Firmware related...
I wish I had known this before ordering the PM961, but as we all know this is trial and error
So back to my first question, the specific models of WD, Intel, and Kingston have no sleep or reboot issue with 2013~2014 mbpr? Whereas samsung's are still showing issues?
Again, really appreciate your hard work !
Do you mean the 960 pro works well in late 2013 mbpr ? or the 960 evo ?
I didn't have such problem at all, but it could be the same thing as the problem of wakeup from sleep, really...
Your problem may occur because of the SSD taking too long to be ready at startup...
Observations from my system, while using internal WD Black PCIe NVMe 4k-sector/Journaled, 10.12 with no external drives. SMC/NVRAM reset. 15" rMBP 2014 w/ updated BootROM:
-- 30 seconds of black screen elapse from cold-boot Startup chime to Apple logo & status bar. Booting from internal NVMe.
-- 5 sec. elapse from cold-boot Startup chime, holding Option-key, to displaying internal NVMe boot drive icon. Apple logo and status bar begin instantly when Return key pressed. Almost 30 sec. from chime to desktop.
Restart/Reboot is 30 sec. of black screen from chime to the ? folder. With Option-key, 5 sec. from chime to Internet Recovery icon. Never displays internal WD Black boot icon.
[Update:]
After numerous boot ups, cold-boot chime to desktop is consistent, under 30 sec; a sudden change. Restart issue unchanged.
[Update:]
Sleep: Closing lid or Sleep menu item and then waking after a few minutes works. Closed the lid overnight and then resumed, resulted in a chime and ? folder.
Observations from my system, while using internal WD Black PCIe NVMe 4k-sector/Journaled, 10.12 with no external drives. SMC/NVRAM reset. 15" rMBP 2014 w/ updated BootROM:
-- 30 seconds of black screen elapse from cold-boot Startup chime to Apple logo & status bar. Booting from internal NVMe.
-- 5 sec. elapse from cold-boot Startup chime, holding Option-key, to displaying internal NVMe boot drive icon. Apple logo and status bar begin instantly when Return key pressed. Almost 30 sec. from chime to desktop.
Restart/Reboot is 30 sec. of black screen from chime to the ? folder. With Option-key, 5 sec. from chime to Internet Recovery icon. Never displays internal WD Black boot icon.
[Update:]
Sleep: Closing lid or Sleep menu item and then waking after a few minutes works. Closed the lid overnight and then resumed, resulted in a chime and ? folder.
Hello,
I continue the tests : I'll try resetting SMC, also I'll try original Apple NVMe SSD, to see if it's an issue caused by NVMe SSD in general.
Just wondering if advance users can confirm if the following will work or issues that I may encounter.
1. Macbook 13 Retina Early 2015
2. Format new SSD WD Black to 4k sector using method in this thread
3. Install WD SSD into Macbook
4. Boot from external Mac (original SSD) with Sierra
5. Use Carbon copy cloner to clone original drive onto WD SSD
Would this work? or is update to bootrom required by upgrading to High Sierra is a must for this to work?
or Should I update to High Sierra first then downgrade by Cloning back to Sierra before performing the above?
Thanks a million!