2013 Mac Pro (FP D500 x2) [3rd,6C,E] + GTX 1080 Ti x2 @ 16Gbps-TB2>TB3 (Sonnet Breakaway 350) + macOS 10.13.3 [jtob]
@richard_death The Breakaway Box 650 + Vega Frontier Edition Air have official macOS support. However the 2013 Mac Pro does not. We have a couple community solutions to enable Thunderbolt eGPU support on this Mac. I'd recommend using Purge-Wrangler script by @Mac_editor. Here's my build guide from last year with similar equipment.
Thank you so much. I got the idea it was possible but just wanted to make sure. 🙂
I have the sonnet break away 550 with the nvidia GTX 1080TI. I went through the steps listed above on a trashcan late 2013 with 10.13.6. When I run the first automate-eGPU it sees and recognizes the card but once I restart the Cuda preferences say "No GPU Detected". Hoping someone else has experience with this.
@bthomas29, I have almost the same settings as you and I face the same issue. Both Purge-Wrangler and automate-EGPU.sh seems to have run properly and recognize my GTX 1080 ti, but I see nothing in System Report nor in Activity Monitor.
Since you posted here, have you managed to make it work and could you tell what script did you use?
Try booting up with the thunderbolt to the eGPU disconnected. When you get to the login screen, connect the thunderbolt and wait a few seconds, then proceed to log-in. Thats what I do. Its a small annoyance but the 1080TI cards get recognized and work.