Proph

@goalque

 

You mean a SMC reset before I erase the HDD and reinstall OSX? I just erase the HDD and reinstall the OSX, is there a difference when I do a SMS reset just before reinstall?

Im using Adaptare 36052 to split the 6-pin to 2x6pin for the GTX 970.

Yes tried another TB port and even tried to restore original AppleGraphicControl.kext with kextwizard.
Still black screen after reboot. Dont know why I can reboot after hotplug the eGPU, even see the 970GTX in display but after shut down or reboot again I get stuck in the black screen.

 

 

@goalque

 

ok I think Im done with my eGPU project for now, cant work with that black screen boot process

thank you for your help anyway, I will watch this topic maybe there will be someone with the same problem who can find a solution

 

best regards

@goalque

 

-Did a clean install of OSX 10.11.3

 

-did comment lines 1076, 1077, 1078 and 1082 with #
-changed the line 62 of the script to: config_board_ids=()

-did chmod +x ./automate-eGPU.sh

-sudo ./automate-eGPU.sh

-sudo reboot

-boot process hangs with default mode

-force power off, unplugged the eGPU

-after reboot with eGPU unplugged did hot-plug the eGPU 

-sudo ./automate-eGPU.sh -a

-nvram tbs-options says <00>

-sudo reboot

-reboot works I see the GTX 970 in system report

-sudo reboot

-boot process hangs with -a mode

-force power off, unplugged the eGPU

-Restart without eGPU
-nvram tbs-options says  <00>

-hot-plug eGPU

-sudo reboot

-boot process works, I see the GTX 970 in system report

-sudo reboot

-boot process hangs again..

.

.

.

 

did the process a few times, the  iMac boots only if  eGPU is unplugged OR when I hot plug the eGPU and reboot

 

 

 

@goalque

 

Output of (4) after restart with unplugged eGPU is the same      -    0    automate-egpu-daemon

 

The automate-eGPU-dameon.plist is in /Library/LaunchDaemons/  yes

 

First restart also works with -m mode

 

If i boot the  iMac with the eGPU unplugged, I can connect the eGPU and reboot, then it works.

But it never works when I restart from a successfully boot with the plugged eGPU.

 

After black screen i have to force power off and do the power up process i described top.

 

@goalque

 

Thx for response, here is the output

 

(1) 10.11.3

(2) 15D21

(3) Mac-B809C3757DA9BB8D

(4) -    0    automate-egpu-daemon

 

Didn't change anything manually so far.

 

Thx for your help!

Hi, I have a problem with booting my iMAC 5k (late 2015, i7, 27") when using Sonnet lll + GTX 970. 

After clean install of 10.11.3 el capitan I disable System Integrity Protection, download newest CUDA, plug in my Sonnet lll with GTX 970 installed and run automate-e-GPU (https://github.com/goalque/automate-eGPU ). I activate -a mode of the script and restart. First restart works fine, GTX 970 works but after another restart  my imac gets stuck while booting with black screen. I know thats a common issue with eGPU but I tried all fixes I found, nothing helps.

 

One thing that works is the power up process described here (https://www.techinferno.com/index.php?/articles/guides/2015-13-macbook-pro-gtx97016gbps-tb2akitio-thunder2-win81osx1010-tranj10-r2/)

-----------------------------------------

Power up process:

This is the power up process I always use to consistently have a successful boot without any black screen issues.

1) Have everything powered off

2) Connect thunderbolt cable to eGPU and MacBook

3) Power on the eGPU power supply (use a power strip with on/off switch)

4) Wait ~15 seconds

5) Power on the MacBook while holding option key

6a) Select the boot partition you want

6b) If you run into a blank black screen:

- Force power off for MacBook

- Power off eGPU power supply

- Disconnect thunderbolt cable from MacBook

- Power on the MacBook while holding option key

- Boot into OS X, log in, and shut down

- Go back to step 1 (there will be no black screen issues for at least the next boot up)

- If you still are getting black screens after repeated tries then try a NVRAM clear (https://support.apple.com/en-us/HT204063)

- Note that the NVRAM clear does mess with the changes implemneted by automate-eGPU. So you'll need to run 'sudo ~/Desktop/automate-eGPU.sh -skipdriver' to re-enable the changes

- If the NVRAM clear doesn't help then try enabling -a mode with automate-eGPU by running 'sudo ~/Desktop/automate-eGPU.sh -a'

-----------------------------------------

 

That process works one time but I dont want do do that whole process every time i start my imac

Tried the NVRAM clear and automate mode of the script restart- stuck in black screen

Also tried to make a backup of AppleGraphicControl.kext and replacing the backup after running the script, imac wont boot at all even without eGPU plugged in.

 

When i boot without eGPU - no problem, when i plug in the TB connection after I booted, the GTX 970 is called Nvidia Chip Model, so that dont works neither.

 

I just need the eGPU for CUDA, no video output from the GTX970 is needed.

Can anyone help me? I would donate some cash for a working solution.

 

Best Regards, Proph

 

Hi, I have a problem with booting my iMAC 5k (late 2015, i7, 27") when using Sonnet lll + GTX 970. 

After clean install of 10.11.3 el capitan I disable System Integrity Protection, download newest CUDA, plug in my Sonnet lll with GTX 970 installed and run automate-e-GPU (https://github.com/goalque/automate-eGPU ). I activate -a mode of the script and restart. First restart works fine, GTX 970 works but after another restart  my imac gets stuck while booting with black screen. I know thats a common issue with eGPU but I tried all fixes I found, nothing helps.

 

One thing that works is the power up process described here (https://www.techinferno.com/index.php?/articles/guides/2015-13-macbook-pro-gtx97016gbps-tb2akitio-thunder2-win81osx1010-tranj10-r2/)

-----------------------------------------

Power up process:

This is the power up process I always use to consistently have a successful boot without any black screen issues.

1) Have everything powered off

2) Connect thunderbolt cable to eGPU and MacBook

3) Power on the eGPU power supply (use a power strip with on/off switch)

4) Wait ~15 seconds

5) Power on the MacBook while holding option key

6a) Select the boot partition you want

6b) If you run into a blank black screen:

- Force power off for MacBook

- Power off eGPU power supply

- Disconnect thunderbolt cable from MacBook

- Power on the MacBook while holding option key

- Boot into OS X, log in, and shut down

- Go back to step 1 (there will be no black screen issues for at least the next boot up)

- If you still are getting black screens after repeated tries then try a NVRAM clear (https://support.apple.com/en-us/HT204063)

- Note that the NVRAM clear does mess with the changes implemneted by automate-eGPU. So you'll need to run 'sudo ~/Desktop/automate-eGPU.sh -skipdriver' to re-enable the changes

- If the NVRAM clear doesn't help then try enabling -a mode with automate-eGPU by running 'sudo ~/Desktop/automate-eGPU.sh -a'

-----------------------------------------

 

That process works one time but I dont want do do that whole process every time i start my imac

Tried the NVRAM clear and automate mode of the script restart- stuck in black screen

Also tried to make a backup of AppleGraphicControl.kext and replacing the backup after running the script, imac wont boot at all even without eGPU plugged in.

 

When i boot without eGPU - no problem, when i plug in the TB connection after I booted, the GTX 970 is called Nvidia Chip Model, so that dont works neither.

 

I just need the eGPU for CUDA, no video output from the GTX970 is needed.

Can anyone help me? I would donate some cash for a working solution.

 

Best Regards, Proph