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How to fix PM981 in 10.13.3 (17D47).

Joined
Mar 24, 2017
Messages
9
Motherboard
MSI MS-17A5 - Clover
CPU
i9-9900k/C246
Graphics
Quadro P3200
Hey man! Amazing work! Please tell us how you did it! I would love to make my Lenovo T480 to work with the PM981!!
You could try running this utility to update your PM981 firmware:

https://pcsupport.lenovo.com/us/en/downloads/ds119265

You have to have one of the Lenovo computers listed on the supported models list for it to work. mhafeez is using EXA73L2Q firmware according to the screenshot which appears to be an updated version. Unfortunately I cannot tell you if this helps or not because my PM981 came with my MSI laptop and MSI has not published any firmware updates for its drives. I ended up purchasing a 970 EVO which instantly worked out of the box.
 
Joined
Feb 28, 2011
Messages
47
Motherboard
Lenovo ThinkPad X1 Carbon G6
CPU
i7-8650U
Graphics
UHD 620 - 2560x1440
Mobile Phone
Android
You could try running this utility to update your PM981 firmware:

https://pcsupport.lenovo.com/us/en/downloads/ds119265

You have to have one of the Lenovo computers listed on the supported models list for it to work. mhafeez is using EXA73L2Q firmware according to the screenshot which appears to be an updated version. Unfortunately I cannot tell you if this helps or not because my PM981 came with my MSI laptop and MSI has not published any firmware updates for its drives. I ended up purchasing a 970 EVO which instantly worked out of the box.
X1 Carbon 6th with 1TB PM981 - firmware update says I have the latest already (4L2QEXA7).
If he is truly using EXA73L2Q, he has a different drive, that firmware string isn't in the Readme.txt for the update.
 
Joined
Feb 24, 2012
Messages
94
Motherboard
HP ProBook 470 G5 (Clover)
CPU
i7-8550u
Graphics
UHD 620
Mac
Mac Pro
Mobile Phone
Android
I think he's just mistyped: EXA73L2Q=EXA7 3L2Q=3L2QEXA7, so he's using old firmware. But again, all we have same problems, he is not, strange. He doesn't answer anymore...

Update: yep, take a look at his screenshot, I'm right about firmware. Also, I think he's booting from another ssd, sata and he named this ssd Mojave PM981 nvme. But in system profiler the partition name of nvme drive is disk0s2. He's trolling us.
 
Last edited:
Joined
Mar 24, 2017
Messages
9
Motherboard
MSI MS-17A5 - Clover
CPU
i9-9900k/C246
Graphics
Quadro P3200
I think he's just mistyped: EXA73L2Q=EXA7 3L2Q=3L2QEXA7, so he's using old firmware. But again, all we have same problems, he is not, strange. He doesn't answer anymore...

Update: yep, take a look at his screenshot, I'm right about firmware. Also, I think he's booting from another ssd, sata and he named this ssd Mojave PM981 nvme. But in system profiler the partition name of nvme drive is disk0s2. He's trolling us.
Yep, good catch. I was actually able to upgrade the firmware on my PM981 to 301Q EXA7, and restored a 10.13.6 clone from a 970 Evo, but it was still unstable booting up or trying to do any kind of intensive reads or writes. My MSI laptop has a Nvidia GPU so for now I have only tried High Sierra until the web drivers are updated for Mojave.
 
Joined
Feb 14, 2018
Messages
1
Motherboard
Gigabyte GA-Z370-HD3
CPU
i5-8600K
Graphics
UHD 630 | RX 560
I installed 13.3 in my SATA SSD ADATA SP550.And it works well.But when I read the files in PM981, the system will restart suddenly.So I have to disable PM981. But I found patch IONVMeFamily like this , my PM981 worked when I used 13.2.

Comment: IONVMeFamily Preferred Block Size 0x10 -> 0x01 (c) Pike R. Alpha implemented by syscl adapted for 10.13.x by Ricky
Name: IONVMeFamily
find: <f6c1100f 85410100 00>
replace: <f6c1010f 85410100 00>


But after I update to 13.3 , it doesn't work.Now I have to disable PM981 again. So how to fix it ? Anyone can help me?
Do you remember how you disabled PM981? Thanks.
 
Joined
Nov 27, 2018
Messages
31
Motherboard
Lenovo X1 Carbon G6 - Clover
CPU
i7-8550U
Graphics
UHD 620, 2560x1440
I just got an X1 G6 Carbon with the PM981, updated the disk to November's firmware and I'm not able to install Mojave on that drive. I will swap with 970 Evo.
 
Joined
May 3, 2019
Messages
4
Has there been any progress on the PM981? The 970s have been out for a long time. Has anybody tried spoofing the PM981 as an EVO 970?

I'm willing to try if anyone can point me in the right direction.
 
Joined
Mar 31, 2013
Messages
9
Motherboard
Intel DH67GD
CPU
i5-3570K
Graphics
HD 5450
Thought I'd chime in because I just tried to install a PM981 in my T460s hackintosh. Clone was done with rsync for APFS container and dd for EFI. Appeared to work fine through boot until stalling and ultimately a kernel panic that was occurring while complaining about AppleNVMeRequestTimer error. The Googles turned up NVMeGeneric.kext and IONVMeFamily.kext as possible culprits - attempts to block through Clover were fruitless.

I thought the problem may have been the backup at first, but there doesn't seem to be any reason logically why they wouldn't work, so I'm cloning a Windows LTSC image off my 970 EVO to the PM981 so I can use the 970 EVO for Macos (and use the original PM961 as a backup).

I will upgrade the firmware on the PM981 since I'm putting Windows on it (vendors really should make universal firmware updaters, like efi shells or freedos images or something rather than Windows only - grr).

Shame because I really wanted to use the PM981 for MacOS, has great write benchmarks. Maybe a fix will come eventually. I'll be ready.
 
Joined
Nov 27, 2018
Messages
31
Motherboard
Lenovo X1 Carbon G6 - Clover
CPU
i7-8550U
Graphics
UHD 620, 2560x1440
Shame because I really wanted to use the PM981 for MacOS, has great write benchmarks. Maybe a fix will come eventually. I'll be ready.
I updated the latest firmware on my PM981 and tried again with MacOS.

I was hopeful as the latest firmware fixed the 970 Evo Plus which wasn't previously compatible.
However no luck, MacOS booted up but the disk speed was very slow. On further tests and reboots I got a couple of kernel panics, and went back to 970 Evo.

Hopefully it will be fixed eventually.
 
Joined
Aug 27, 2018
Messages
37
Motherboard
Razer Blade 15 - 2018
CPU
i7-8750H
Graphics
GTX 1070; UHD 630
Mac
MacBook Pro
Mobile Phone
iOS
@downsyndrome hey man did you have any luck with it? Wondering if there were any additional compatibility of PM981 with 10.14
 
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