I have not had this problem, but wonder if it might be related to some other driver issues I've had in the past. How old is that driver? Because at a certain point the Mac OS started to insist that kext files be properly singed, blah blah blah, and old drives won't work. I found this to deal with it.
I will very much recommend that you make a backup of your system, like with TimeMachine. If possible swap out the boot drive and do a fresh install or swap out the boot drive and recover with a TimeMachine image before proceeding. Always have a recovery/backup plan.
Use older drivers that aren't cleared for OS X
Lets show you how I did this:
1. Install the driver and check if it is working or not. If NOT continue;
2. Reboot your Mac into Recovery Mode by restarting your computer and holding down Command+R until the Apple logo appears on your screen;
3.. Click Utilities -> Terminal;
4. In the Terminal window, type in csrutil disable and press Enter;
5. Type again csrutil enable --without kext;
6. Restart your Mac.
In my case, after computer restart my oldie ATTO Celerity FC-42ES worked fine.
I HIGHLY DO NOT recommend fully disable the SIP and recommend to use --without key.
Also, BE CAREFUL with driver installation from an unconfirmed sources.
Thank YOU for your time.
Jay
On Apr 27, 2019, at 12:26 PM, John Moore bigfish@pacbell.net [Editing-List] <Editing-List@yahoogroups.com> wrote:After installing a GTX-680 in my work macpro mid 2010 upgraded to 12 core 3.33GHz 24 GB ram OS 10.12.6 I decided to try the nvidia driver. It installed fine but when I choose it and restart it always reverts to OS X driver. I did a security update to the OS and downloaded the compatible nvidia driver for the new build and it installed but again on restart it reverts to OS X driver.I google and found things about NVram not working on certain older boards. I don't have this issue on my home mac pro mid 2012 with same os. So I'm wondering if it's the older chassis at work and given it was an upgrade perhaps there is a mixture of older hardware components.I found a utility called Clover that deals with creating an emulated nvram but it wouldn't install at work.Has anybody fought this battle?Here is a little something I found:Curious what the next step would be. The internal OX X driver works but I'm starting to take this personally. Someone in Silicon Valley has once again gone out of their way to mess with John Moore. I bet it's a sub group of the Font people that always F with me. ;-)John Moore Barking Trout Productions Studio City, CA bigfish@pacbell.net
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Posted by: Jay Mahavier <jay_mahavier@icloud.com>
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