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2011 11" MacBook Air [2nd,2C,M] + GTX 750 Ti @ 10Gbps-TB1 (AKiTiO Thunder2) + m...
 

2011 11" MacBook Air [2nd,2C,M] + GTX 750 Ti @ 10Gbps-TB1 (AKiTiO Thunder2) + macOS 10.10 [johnshea]  

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johnshea
(@johnshea)
Active Member
Joined: 3 years ago
 

Hi All! I'm happy to have found the new home of goalque, nando4 etc! Let's have some hardware hacking fun!

For those who are curious, I'm a full-time software developer mostly working with the MEAN stack (AngularJS and Node.js). I'm running an EVGA Nvidia 970 GTX with an Akitio enclosure, and loving it.

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Jan-2015 build: 2011 11" MBA + [email protected] (AKiTiO Thunder2) + OSX10.10 [johndshea]

Hello all! I've been a lurker on this thread for several months now and decided to finally bite the bullet and do my first eGPU build with the AKiTiO. It's up and running beautifully in Yosemite  after a few hiccups (e.g., apparently the driver installation and kext editing must be done in a very specific order).

Right now, I'm running the 750Ti off the AKiTiO's power alone, with the enclosure on too. And it seems to be running fine! This is confusing to me because my understanding is that the AKiTiO only provides 25W to the card and even the 750Ti requires 60W. So I'm concerned that a) I'm damaging the AKiTiO by exceeding its power envelope or my 750Ti won't run properly because it's power-starved, or both. Update: running the 750Ti on the AKiTiO's 60W PSU alone proved to be moderately unstable. I eventually shifted to using a 500W ATX PSU + powered riser with the 750Ti, which was more stable, then to running a Mini-ITX GTX760 and later a Mini-ITX GTX 970 with the AKiTiO, both of which were even more stable.

I'm well behind the learning curve on electrical engineering compared to most people on this thread. However, if my setup really is working well, it's possible that the AKiTiO is capable of running a midrange Maxwell GPU without any other hardware needed.

 

 

OpenGL benchmark with the GTX750Ti running only on the AiKiTO's own power supply (not bad for a base model 11'' MBA!):

OpenGL benchmark with the GTX750Ti running on an EVGA 500w ATX PSU through a powered riser (as you can see, barely any difference):

For comparison - OpenGL benchmark for the MBA's original integrated Intel HD5000 GPU:

For good measure: here's the same benchmark replacing my 750Ti with a GTX 970:

This topic was modified 4 months ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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nando4
(@nando4)
Noble Member Admin
Joined: 3 years ago
 

Hey John, Welcome aboard! I’ve reworked your intro to be a implementation post with local pics. If you prefer, I can move this thread back to intros area if you wish to post the above opening post as an implementation yourself. It’s a nice writeup. Thank you for sharing 🙂

Posted by: johnshea

 

Hi All! I’m happy to have found the new home of goalque, nando4 etc! Let’s have some hardware hacking fun!

 

For those who are curious, I’m a full-time software developer mostly working with the MEAN stack (AngularJS and Node.js). I’m running an EVGA Nvidia 970 GTX with an Akitio enclosure, and loving it.  

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

15" Dell Precision 7510 (Q M1000M) (6th,4C,H) + GTX 1080 Ti @ 32Gbps-M2 (ADT-Link R43SG) + macOS 10.13.6 & Win10


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johnshea
(@johnshea)
Active Member
Joined: 3 years ago
 

Thanks, @nando4!

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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