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Hi! Thanks for a great script! One simple question... does -uninstall option put original kext files back? or do i need to manually edit it back to original? Thanks!

Oh, I guess I miss that question! Yes! Nearly 100% success rate with your method! Thank you!!!!

Thanks for the reply! Yes I tried with 3 different monitors with hdmi, dvi, vga...... all possible ports on every connection! No go.... I even tried to downgrade video driver. No go.... I am starting to think there is no hope.... I am hoping one of experts on this forum, end up buying imac 2015 5k model and make it work! BTW, I found out one thing... apparently you have much much higher success rate booting in to windows without getting "ACPI BIOS ERROR" when rootless is disabled on El Capitan. Thanks!

Thanks for the quick reply! I just can't give up OSX! So, I am thinking, I cant get eGPU to work on OSX because maybe i didnt do something obvious! Here is what I did! 1. Turn rootless off 2. booted osx 3. hot-plugged eGPU 4. Run the script which installed NVIDIA driver. 5. Reboot 6. run script with -a option. 7. reboot Did I forget to do anything? Thanks a million!

Since I won't be using eGPU on OSX, is there anyway to turn -a mode on without installing the script itself as I do not need to modify kext files and install nvidia drivers? Also, Do i need to do this everytime I log in to windows or just one time? Thanks!

It would be great! Okay, cleaned up some cables...... did barrel plug mod.... runs great on Windows 10 except booting issues. Is there anyone who doesn't have "ACPI BIOS ERROR"? Anyone know why this error happens? Thanks a MILLION!

Both methods didn't work....... sudo ./automate-eGPU.sh -clpeak : Passed all the tests I tried 2 different monitors using vga, hdmi, dvi, and none of them work. I guess imac 5k 2015 is no go....... Thanks a million!

I will try it! Also, I found out certain way so I can boot to windows without getting "ACPI BIOS ERROR". 1. Make sure power of AkiTio box and power supply are off. 2. Turn iMac on. 3. Hold Option/Alt key to get to boot menu 4. Power AkiTio box and power supply on 5. Wait at least 1 min or longer.... (Yes! Annoying) 6. Choose Windows I mean for time being I guess I will have to live with this method until someone finds better resolution. Thanks a million!

External Monitor is made by BenQ 24 inch It is connected by dvi cable from gtx970s dvi port. Because gfxcard has 2 dvi ports i tried both. Thanks!

Thanks! I am not planning on using optimus.. just external monitor. so I just follow step one only? Also, do i need to install windows again or just use previously boot camp installed windows and just apply the change. Thanks a million!

Thanks alot for your help Dschijn! Here is picture of my setup AkiTio Thunder2 Galax GTX970 Gamer 4mg (ITX sized card) Imac 5k 2015 I have 2 problems. 1. On Yosemite, when I run the script thats on sticky post, it recognises card and installs the driver. When I reboot, computer recognise the GTX970 attached but somehow it acts as monitor is not attached on this card. So external display doesnt work. monitor says no signal. 2. On windows 10, it works great but about 60% of the time, when I boot, i get "ACPI BIOS ERROR" and it reboots couple of times.... Thanks!!!

Wow thanks! Is it possible to assign certain program to start on external monitor in osx? Thanks again!

Thanks for the quick reply! So in other words both internal and external monitor will work at the same time each powered by its own gpu right? And it will behave just like dual monitor system and any window I drag to external monitor will be powered by eGPU. Am I understanding this correctly? Also is it basically plug and play or do i have to fiddle with OSX? Thanks a million!

Hi, I just bought a iMac 5k 2015 model and interested in setting up egpu unit for it. I have been lurking around this forum and its my understanding that, in OSX you cannot use the built-in 5k monitor with egpu. My question is, what happens if I plug in egpu unit connected to external monitor? 1. Does built-in screen of iMac go blank? 2. Does both internal monitor powered by internal graphics card and external monitor powered by egpu stay on? 3. If both monitors stay on, then does it function like regular dual-screen setup? 4. I mainly play Diablo 3 and how do I make it run on the egpu-connected external monitor? Thanks in advance!!!!!