Dual eGPU setup working on nMP + FCPX fix + Pictures via Instagram
 
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Dual eGPU setup working on nMP + FCPX fix + Pictures via Instagram  

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imcalledandy
(@imcalledandy)
Estimable Member
Joined: 4 years ago
 

I now have 2 x 980Ti running on my 2013 Mac Pro Smile

I followed the setup using @goalque's script to get the first one up and running. That is plugged into Bus-0, lower left port.

Then I built a 2nd using the exact same parts as the first - main components are an EVGA 980Ti and the Akitio Thunder2. Powered by BeQuiet PSUs using the molex to barrel method to power the Akitio.

The second eGPU is plugged into Bus-1 top left port.

I'm using the eGPUs for rendering in C4D (Octane / Cycles) The results are 50% faster than CPU rendering (in Cycles) Octane is just much faster with more cards Smile

To get FCPX to work, it's a bit odd - I have a Thunderbolt display plugged into Bus-0 port 2 (so lower right hand side). I didn't make the connection until I tried to open FCPX without the Thunderbolt display connected. FCPX would crash on launch every time. With the TB display plugged in it opens normally.

I can provide more information and hopefully I'll get some photos of the builds once the second one is complete.

multiCUDA

Here are some images of the build:  https://www.instagram.com/p/BRbmex7htEL

2013 Mac Pro (FP D700 x2) [3rd,8C,E] + GTX 980 Ti x2 @ 16Gbps-TB2 (AKiTiO Thunder2) + macOS 10.13.1 [build link]  

nycjunglist, visua, deplomb and 3 people liked
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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

That's a lot of GPUs! I'm glad you finally got it going.

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2013 Mac Pro (FP D500 x2) [3rd,12C,E] + RX 5700 XT @ 16Gbps-TB2>TB3 (Mantiz Saturn Pro) + macOS 11 [build link]  


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imcalledandy
(@imcalledandy)
Estimable Member
Joined: 4 years ago
 
Posted by: itsage

 

That's a lot of GPUs! I'm glad you finally got it going.

   

Thanks! Me too!

2013 Mac Pro (FP D700 x2) [3rd,8C,E] + GTX 980 Ti x2 @ 16Gbps-TB2 (AKiTiO Thunder2) + macOS 10.13.1 [build link]  

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Flint Ironstag
(@flint-ironstag)
Estimable Member
Joined: 4 years ago
 

Congratulations on your setup!  Looking forward to seeing the photos.   I find it odd that more nMP owners aren't looking into this.  Maybe it's because of the nosebleed pricing and unnecessarily complex installation.  Or the fact that our GPU choices are a generation behind.

MP 6,1 | 4c | d700
MP 6,1 | 6c | d500


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Anchoricex
(@anchoricex)
Trusted Member
Joined: 4 years ago
 

I have been wondering this for a while. With Dual AMD's and Dual 980TI's, you now have a setup that'll do both optimized FCPX work (D700's), and will play hard ball with Adobe applications / Maxon C4D that work better with Cuda thru your nVidia cards. That's pretty beast man! Are there any issues with applications selecting between which cards are used?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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nickmilitello
(@nickmilitello)
Eminent Member
Joined: 4 years ago
 

What OS are you running to get FCPX and dual 980ti to work?  Are you on Seirra and FCPX 10.3.2?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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nickmilitello
(@nickmilitello)
Eminent Member
Joined: 4 years ago
 

What OS are you running to get FCPX and dual 980ti to work?  Are you on Seirra and FCPX 10.3.2?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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nickmilitello
(@nickmilitello)
Eminent Member
Joined: 4 years ago
 

Quick update.  Tried plugging in a HMDI cable to Titan Z to my 40" 4k Samsung tv (use a primary display((usually use Mini DisplayPort to HDMI 4k at 60htx). no output, just black screen.

Tried getting an old 1080 HDMI monitor only plugging in Titan Z - HDMI - 1080 monitor FCPX 10.3.2 works fine.  

Plugged in 4k monitor to Mini DisplayPort while 1080 was plugged into Titan Z while FCPX was running and FCPX was stable.  However restart FCPX while both plugged in, crash. 

Ordering a display port to HDMI 4k 60htx adapter to come out of the Titan to see if that works.... Will report back.  Seems to be something with if the d700 are in use FCPX doesn't know what to do.....

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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Menneisyys
(@menneisyys)
Eminent Member
Joined: 4 years ago
 

"Ordering a display port to HDMI 4k 60htx adapter"

I'd be interested in such a thing too. All I could find so far was 4k30.

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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imcalledandy
(@imcalledandy)
Estimable Member
Joined: 4 years ago
 

@Flint Ironstag - Thanks - I'll get some photos up soon - have been in and out of the office, but I'll aim to do it this week.

@Anchoricex - Cheers! No issues with switching applications. I used to have some startup problems where I would have to unplug the Thunderbolt monitor to get macOS to chime but once you've run the setup once and shutdown the issues go away on the next boot.

@nickmilitello - Yes on Sierra (10.12.2) and latest FCPX. As I mentioned, I think it's down to the Thunderbolt display using one of the D700 cards and so tricking FCPX into ignoring the GTX 980Tis. I think you're coming to a similar conclusion! Hope the adapter works for you.

 

2013 Mac Pro (FP D700 x2) [3rd,8C,E] + GTX 980 Ti x2 @ 16Gbps-TB2 (AKiTiO Thunder2) + macOS 10.13.1 [build link]  

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