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haralds

macrumors 68030
Original poster
Jan 3, 2014
2,994
1,259
Silicon Valley, CA
I have been using sudo trimforce enable to use trim on my SSDs on my 5,1.

I disabled SIP to make few changes and had left it there. When I did a status check trim was disabled. repeating the command multiple times did not enable it. Booting from other partitions (High Sierra, Mohave 1014.1) showed it enabled. Clearing PRAM did not fix it.

I reinstalled 10.14.5 - no change.

I finally enabled SIP and rebooted and PRESTO, trim was enabled.

Weird, since earlier versions never showed this behavior.
 

h9826790

macrumors P6
Apr 3, 2014
16,656
8,587
Hong Kong
I am with 10.14.6 beta now. But very sure there is no such bug in 10.14.5 on my cMP. I can disabled SIP with TRIM enabled (SATA SSD).
 

howiest

macrumors 6502
Aug 16, 2015
323
131
Left Coast
I'm seeing some weird behaviour since Security Update 2020-001...
After the update I noticed that TRIM was no longer enabled in System Report. So I tried several times to enable it with "sudo trimforce enable" in Terminal, but no change in System Report. I even stubbornly tried to apply that in Recovery Mode... no change.
Trim Enabler 4 shows TRIM working normally, but no change in System Report.
I have 3 SSD's in my Mac Pro and no matter what I do they show as "no" in the System Report TRIM category.

All my SSD's are 3rd party... Samsung 840 & 850, as well as one Mushkin SSD.
 

MIKX

macrumors 68000
Dec 16, 2004
1,815
691
Japan
Try shutting down + THREE CONSECUTIVE CHIMES NVRAM reset = hold the keys down until you hear the THIRD chime.

My 970 EVO Plus &. 970 EVO are both showing "YES" for TRIM.

I use Trim Enabler 4. I haven't used "sudo trimforce enable" perhaps it should be 'disabled seeing that you already have Trim Enabler 4 working, maybe a conflict.
 
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geo88

macrumors member
Nov 19, 2019
53
26
Nashville, USA
I installed Security Update 2020-001 on my 4,1>5,1 w/ 860 EVO boot drive (APFS) in the upper optical bay. System Information still reports "TRIM Support: Yes".
 
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AidenShaw

macrumors P6
Feb 8, 2003
18,667
4,677
The Peninsula
I have been using sudo trimforce enable to use trim on my SSDs on my 5,1.

I disabled SIP to make few changes and had left it there. When I did a status check trim was disabled.
Your SSDs are now "dirty", since they've been used with TRIM disabled.

Be sure to run the utility that manually TRIMs dirty blocks. (I think it's part of the diskutil repair function.)
 

howiest

macrumors 6502
Aug 16, 2015
323
131
Left Coast
The contradiction continues...

Screen Shot 2020-02-02 at 5.14.52 PM.jpg
 
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