My other Air has an Intel 600p and it can only update the firmware by putting in an Apple SSD.Thank you
Probably, if the internal SSD is not genuine, it seems to be specification which does not update EFI firm.
Last edited:
My other Air has an Intel 600p and it can only update the firmware by putting in an Apple SSD.Thank you
Probably, if the internal SSD is not genuine, it seems to be specification which does not update EFI firm.
How did you X2 vs X4 please?I did, before I had only X2 link speed but after the tape it was X4, but the speed is still 1500/1500 r/w.
Yeah nah I used the kapton tape to stop the pins from touching together.Dont think I did anything special. I just used the long back "-C" adapter, didnt even apply any tape. Could be some pins touching as others have mentioned? Out of interest what Boot ROM and SMC versions do you have? (MBP114.0184.B00 and 2.29f24 here).
What do you mean? How did I get from X2 to X4 or what was the speed comparisons bewtween X2 to X4?How did you X2 vs X4 please?
Yeah nah I used the kapton tape to stop the pins from touching together.
My Boot Rom and SMC Version is MBP114.0184.B00 and 2.30f2
[doublepost=1533163555][/doublepost]
What do you mean? How did I get from X2 to X4 or what was the speed comparisons bewtween X2 to X4?
For the first question I just used the kapton tape to isolate the pins from touching the shield and for the second question, my X2 speed is the same speed as X4, 1500/1500 r/w
Hello, finally I just installed 970 evo 2TB on my macbook pro mid 2015:
- upgraded to 10.13.6
- cloned system on external ssd with ccc
- open mbp, unplug battery
- replaced ssd with sintech green adapter and new drive (I did no magician upgrade)
- reassembled
- booted from external ssd
- formatted new drive
- cloned back my system to new drive
- booted from new drive and set it as new boot volume
No issues at all, ssd recognized and formatted apfs without problems.
I did a "normal use test" before and noted temperatures (ssd, cpu), battery % and battery lasting time. I need to do the test with the new drive but because I used Hardware Monitor 5.55 it don't recognize the new ssd sensors*.
Speed: before r1956/w1080, now r2240/w2520**.
I have 2 questions:
* I'm searching a ssd thermal sensor app who work with the new ssd. I found maybe iStat menu but I will not install an app so rich of features only for the ssd temperature (I try to keep my system "cleaner" as possible). Someone can suggest a light app only for monitor ssd temperature? Then I will post the comparison.
** Yes, it is what Black Magic Speed test show: write speed is bigger. Is this normal? In system profile I see x4 and 8.0 GT/s for the connection. Maybe a software bug...
Sorry, there was a typo error there. I was wondering how to check whether my SSD is using 2 or 4 lanes. Now I just checked and without the tape it's using 4 lanes. I'll get the tape today and try after too, but current speeds still remain 1406-W and 1490-R.
Would a 960 Pro make a difference instead of 960 EVO?
Also, is the green adapter better when it comes to performance?
Thank you!!
[doublepost=1533273357][/doublepost]
Not sure why I'm not getting speeds similar to you even though mine is a mid-2015 model?
I read somewhere that the 2015 models very by screen size. The 13” had pci 2.0 and the 15” has pci 3.0. Could this be the difference in your speed comparison assuming yours is a 13” and his maybe a 15”. Just a thought.
Only 15" MacBook Pro mid-2015 has PCIe 3.0x4 speed (8.0GT/s), other MacBooks only have PCIe 2.0x4 speed, hence the 5.0GT/sGuess, I found couple of differences. The link speed is different - I got 5.0 GT/s whereas the other person has 8.0 GT/s. The only other difference is the adapter - black for me vs green for the other person
Thank you so much for confirming.Only 15" MacBook Pro mid-2015 has PCIe 3.0x4 speed (8.0GT/s), other MacBooks only have PCIe 2.0x4 speed, hence the 5.0GT/s
Hello,
in the attached image you can see my very basic test on consumption. I tri to make a real use test but it is not wery scientific. In my opinion there is not a big difference between the two drives in term of consumption. In the 970 test you can see the lasting time is a bit less but at the beginning i had a couple of automated task that have run pushing the first minute the consumption at high levels (you see also the cpu temperature is higher because of this initial load) and this have reduced the estimated time even if the battery % at the end is a bit higher than the original test (90% cons 88%).
I could not do test of the temperature of the new ssd... but thouching the bottom of the mbp I have not the impression that it is more hot.
Finally I'm very happy with this upgrade. Thank to all the contributors to this forum and specially to Gilles.
Concerning your questions I think the missing kapton tape on your adapter is probably responsable of the lower performances. As you can read in other post this can cause interferences and the communications ssd-motherboard in this case can work only on 2 lanes instead of 4. Give a look in about this mac - system details - NVMExpress tab: link width should be 4x and maybe you have only 2x. In this case kapton tape is the solution.
I had also at the beginning the question mark about boot volume. For me this was due to a firmware password forcing to find original volume: I had simply to change the startup disk in system preferences.
Because of the need of the original ssd to upgrade the efi, maybe is a good idea to keep the original ssd (i will do so) with a partition with the OS installed.
There is external cases if you will use the original ssd as external drive: try the owc (https://eshop.macsales.com/item/OWC/MAU3ENPRPCIO/) but transcend should have an external case too.
Good luck
Andrea
PS: Apple, please make macbook pro again, wit standard and self upgradable ram and ssd! We all have lost a lot of time to find workaround to your monopoly. Thanks.
View attachment 773596
[doublepost=1533400864][/doublepost]bro can you please tell wheather samsung pm981 pro will work with macbook air 2017 or not..i am having this macbook air 2017 and i have bought a adapter for pcie nvme .I am looking to buy either samsung pm 981 or samsung evo 960...Hi everyone,
just received last week this little guy, a new Samsung PM981 :
View attachment 738854
First little deception, it is still impossible to format it with 4K sectors, so no Sierra compatibility for it :
View attachment 738860
View attachment 738855
Second little deception, I was unable to do a BlackMagic disk Speed Test..
The system immediately hangs and reboots a few seconds after (with a kernel panic report with IONVMeFamiliy.kext)
A clone with CarbonCopyCloner or a file copy in the Finder also brings the same result : hang then reboot...
I did tried a little further and found that I have no problem at all at just reading or sending zeros to the disk with "dd" command.
It just works perfectly, at full speed :
500MB/s write on the full drive :
View attachment 738852
and ~2500MB/s read also on the full drive :
View attachment 738853
I haven't yet tried under BootCamp/Windows 10 so far...
So here we are... High Sierra as of 10.13.2 beta 4 has problems with those drives... but not errors occur when doing block-level access on command line.
Strange...
Hi everyone,
just received last week this little guy, a new Samsung PM981 :
View attachment 738854
First little deception, it is still impossible to format it with 4K sectors, so no Sierra compatibility for it :
View attachment 738860
View attachment 738855
Second little deception, I was unable to do a BlackMagic disk Speed Test..
The system immediately hangs and reboots a few seconds after (with a kernel panic report with IONVMeFamiliy.kext)
A clone with CarbonCopyCloner or a file copy in the Finder also brings the same result : hang then reboot...
I did tried a little further and found that I have no problem at all at just reading or sending zeros to the disk with "dd" command.
It just works perfectly, at full speed :
500MB/s write on the full drive :
View attachment 738852
and ~2500MB/s read also on the full drive :
View attachment 738853
I haven't yet tried under BootCamp/Windows 10 so far...
So here we are... High Sierra as of 10.13.2 beta 4 has problems with those drives... but not errors occur when doing block-level access on command line.
Strange...
Congratulations, with your posts, you have demonstrated you are capable of searching this thread. Your question has been discussed and answered time and time again: the PM981 with its current firmware has not worked in any MacBook.bro please tell
sudo pmset -a hibernatemode 0
Macbook Pro 2014 & 2015
No.For a 2014 early MacBook Air, is this the proper Dow load to update the EFI and fix the sleep issue?
https://support.apple.com/kb/dl1749?locale=en_US
Is there any reason why write speed is getting slower as testing continuously than the 1st run? I always wonder why.Next new SSD tested : the Western Digital WD Black "G2".
As other NVMe SSDs, it works out of the box with the proper Sintech rev. B or C adapter, without any issue on 2015 13" and 15" rMBP, and 2015 and 2017 MacBook Air.
Again and as it is the case with every NVMe SSD, hibernation doesn't work out of the box on 2013-2014 mac.
The WD Black "G2" is waaaaaay faster than its predecessor the WD Black "G1".
While using the SLC cache it shows speeds of 2800MB/sec read 2350MB/sec write
Once the SLC cache has been filled it slows to ~1100 MB/sec write which is a good value, better than the 970 Evo.
It does handle 4K blocs, so it can work with 10.12 once setted to use 4k blocs (with the nvme-cli utility under Linux).
It has a max design power state of 5,50Watts reported by smartctl (peak of 9W not excedding 10µs), uses 3D TLC NAND and costs $177 for the 512 GB model.
I like this model a lot, because it is cheap, fast, and has 10.12 compatibility with 4LK blocs.
Filling up the cache. That is the point of the test.Is there any reason why write speed is getting slower as testing continuously than the 1st run? I always wonder why.
Last, here is a test of a brand new Trasncend 850.