iMac 27’ (2015) + egfx BB 550 + Vega FE LC
Just register to say ‘thank you’ for all the hard work people on the forum have done.
The OS X High Sierra seems to handle it without any work, or issues.
The Windows 10 on the other hand, was handful. Fortunately I came across the thread about DSDT remapping. I ended up loading it by registry since I already had the Windows on test mode. It is not 100% stable, but enough to get the job done.
I ended up with 3x LG 27UD68 running with Eyefinity. The Vega drives them beautifully at 1080p.
The internal display is pretty much a wash. Makes a good side display if I am so included to remount it (they all are on arms).
@Jyin, you're welcome. Did you want to submit an implementation guide with pics so we can see your gear and other owner's replicate your success? I can also add your DSDT to the DSDT public repository if you submit it.
I am interested in how the Radeon Vega Frontier Edition LC has improved your workflow/gaming.
I didn't take any pictures during my build, and I don't want to take it apart to do it now.
I do have some performance result from Heaven and Dirt Rally. I can't find a way to attach any images/documents however.
My 2015 set up was a test bed to see if eGPU was viable, and I took it down almost as soon as I was satisfied with result.
As I understand it, DSDT is very sensitive to the setup, like RAM, so my copy would only work on my set up anyways.
1. Extract http://www.mediafire.com/file/z19yep3qje3qb7l/Apple_2015-27in-iMac-Pravalorius.zip to c:\dsdt
2. Run c:\dsdt\load.bat as administrator to get you to the end of OPTION 1 & continue from there.
I'm getting bsod every time after the load.bat when plug in my egpu
And in device manager I have the large memory input and on memory my radeon M390 under the pcie controller (x16) - 1901
I had troubles loading the dsdt.aml file to Clover in windows.
But i followed https://egpu.io/forums/pc-setup/fix-dsdt-override-to-correct-error-12/#post-1598 and created a clover USB bootloader (maybe not he most elegant solution, but is working)
at last it wasnt working until i used this comand
I can't thank you enough @nando4 i was stuck for a week and with your guidance i was able to fix it.
My Specs are
iMac 17.1 27 in late 2015 5k
16gb ram DDR3 1600
Radeon R9 M390 2gb dGPU (No iGPU)
Aorus gaming box 1080 8gb
Samsung 24in curved Monitor for external
TB3 to TB2 original adapter
Tested on 2 games that i had.
PUBG (Blattle royale FPS)
1920x1080 (Max resolution of my monitor)
ULTRA settings, 90 FPS average
Black desert Online (MMORPG)
ULTRA Settings, SSao, Antialiasing, etc etc 60 FPS avg.
I'll be happy to give more details and add DSDT to the list so more people owning this iMac can make their eGPU work.
(sorry about my English, is not my 1st language)