MacBook – Compatibility of NVMe and deep sleep in Macbook Pro

hard drivemacbook prosleep-wakessd

Like many others in the community, I am running a Samsung NVMe drive in my Late 2013 15 inch Macbook Pro. [Thanks to the firmware update provided in 10.13 Macs back until around 2013 can work off of a NVMe drive natively] (Credit to Gilles) ¹.

I used a Chenyang NGFF to Apple 12+16 adapter and formatted the disk in Disk Utility in the installer to APFS, then installed the system (10.13, initial release). Note that before wiping and reinstalling the OS, I had previously upgraded to High Sierra.

Speed wise I am getting about 1400MB/s read and write speeds. I am stating all of this to show that the drive itself works great, except for deep sleep mode feature. It cannot come out of deep sleep mode, it just shows a black screen. Anyone happen to know of a fix? I have read that it could be due to the drive not powering on in time for the SMC to find it. If no fix is likely, what workarounds are there?

Best Answer

Please try this. Before try, Please check yourself about pmset, and if you like this then try.

open Terminal in Utility folder in Application folder.

pmset -g

(a list shown that is pmset setting)

sudo pmset -a hibernatemode 0 standby 0 autopoweroff 0

(administrator password is needed)

This command makes a Mac never hibernate or deep-sleep.

Related Solutions

MacOS – Slow SSD Performance on iMac

Looks like a known problem with the SSD. OCZ has a firmware on their forum that will fix the issue. See the post "Changing SATA speed on your "3" series SSD." in this thread.

This portion of the instructions only applies to OCZ "3" series SSD's - Vertex3, Agility3, and Solid3 - all sizes. Some SATAII motherboards, when used with one of the above drives will downgrade the drive to SATA1 speeds. We find this mostly on Nvidia chipset motherboards for PC and Nvidia chipset based Mac's. To resolve this, we have a tool that will set the link speed to be locked at SATAII and improve performance. This can be reversed when you update your motherboard/system so you can have the full SATAIII speed again.

Installing the firmware involves burning a Linux LiveCD so I hope you have a computer with the optical drive still in.

MacBook – Upgrading to SSD on 2010 MBP

re 1: hard to say - if you can spare the Money you should go for the 850 bc. of a (probably) better Garbage Collection (see #3), else go for the 840.

re 2: The best tutorial for replacing the optical drive with a harddrive (or SSD) can be found at iFixit.com, f.e. this one. You should search for the Tutorial for your model, the link i posted is probably not for your model.

re 3: There is a hot discussion going on if Trim should be enabled or not and if that is a bad thing. Fact is, Apple has Trim Support enabled only on its own OEM SSDs and disabled it for third party drive. There are Tools to enable TRIM Support, but it could be a not necessary bc. of a better Garbage Collection within the SSD Firmware (see this article and this Article). For general Infos i recommend this Article from Samsung

BTW, to create a homemade Fusion Drive you need to use the 'Core Storage Volume' Command. You can look it up with

man diskutil

look at the 'coreStorage' section. There are some tutorials for creating a homemade Fusion Drive, but it's a very painful process.