After enabling TRIM the SSD can't recognize as internal drive

artoff

macrumors member
Original poster
Dec 30, 2014
45
0
Armenia
Hello Guys

I have Samsung 840 Pro 512 gb SSD connected to my Mac Pro with Syba SATA III 4 Port PCI-e controller . On Mavericks i was used the
3rd Party SATA Kext and i had no problems. But On Yosemite and on El Capitan when i'm enabling Trim with termninal after restarting the system i see the SSD connected with controller is not shows internally. I see Yellow icons..

who can help me or maybe no need to enable trim?

thanks

 

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ghislain

macrumors member
Apr 22, 2009
98
12
I also have a Samsung 840 Pro 512 gb SSD connected to my Mac Pro through TB and with TRIM enabled. It appears on desktop with a yellow icon (external disk), and works like a charm. No problem...
 

artoff

macrumors member
Original poster
Dec 30, 2014
45
0
Armenia
I also have a Samsung 840 Pro 512 gb SSD connected to my Mac Pro through TB and with TRIM enabled. It appears on desktop with a yellow icon (external disk), and works like a charm. No problem...
oh, that's great. I thought that could affect on speed.
 

h9826790

macrumors G5
Apr 3, 2014
14,398
6,950
Hong Kong
It's nothing to do about TRIM, in your case, the SSD most likely always be considered external if you check the system info carefully (even in Mavericks).
 

flowrider

macrumors 603
Nov 23, 2012
6,218
2,370
Any drive connected to your Mac Pro through PCIe will show up as an External Drive. Has nothing to do with TRIM or Drive Type (SSD, SSHD, HDD or Optical). This poses no problems or issues.

And YES - TRIM should be enabled!

Lou
 

flowrider

macrumors 603
Nov 23, 2012
6,218
2,370
Lou, this means TRIM is automatically enabled with El Capitan once any SSD is fitted into the system?

I am:p Trim needs to be enabled (with a non Apple SSD) with the TRIM command in the Terminal. Once enabled, it will stay enabled during subsequent OS Updates. If you should want to disable TRIM, you would need to do it with another Terminal command.

Lou
 
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mbosse

macrumors 6502
Apr 29, 2015
466
113
Vienna, Austria
I am:p Trim needs to be enabled (with a non Apple SSD) with the TRIM command in the Terminal. Once enabled, it will stay enabled during subsequent OS Updates. If you should want to disable TRIM, you would need to do it with another Terminal command.

Lou
So this means that TRIM would stay active even if I upgrade between major versions, e.g. from 10.10.5 to 10.11?
 
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