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Tech Inferno Fan>> June-16-2015: Dschijn advises there is pre-fabricated Dell DA-2 to barrel+PCIe cable is available on ebay-US for US$16 or US$21!! Perfect to use a 220W Dell DA-2 (enough for a GTX970) use with the AKiTiO Thunder2 eGPU enclosure or others using a DC barrel connector. That being the most plug'n'play solution to use this AC adapter from the three other highly regarded ones posts in order below.-> no longer being sold Nope, the DA-2 doesn't use PCIe power interface. Solder is required unless there isn't some DA-2 to PCIe cable converter that I have missed. The red triangles are where you need to cut the DA-2 male to make it compatible with a PCIe 8-pin female extender. You will also keep the "notch" for polarity guidance (even though this would make only fit on way). The nether right 12V on the DA-2 can not be used this way, will result in shortage. The Sense wire will be shorted against the PCIe 12V line, the sense wire on the PCIe- "female side" should be cut off and isolated from the circuit. The Remote pin need to be grounded to power on the DA-2 it could probable be left alone since it might be grounded on the PCIe female side. Conclusion: I can't see how this could be done properly w/o soldering or cutting cables. If you don't like the idea of soldering you could always do it this way: <hr> From http://forum.techinferno.com/enclosures-adapters/7205-us%24189-akitio-thunder2-pcie-box-16gbps-tb2-67.html#post111759

This is probably the first trial online involving a TB3 to TB adapter. Update on Noon July 23rd 2016: works seamlessly with an external monitor. However, whenever I select Duplicate in projection mode, the rendering will be carried out on iGPU/dGPU(if you do not disable it) Update on Morning July 23rd 2016: Turns out the Optimus is only working for Furmark. i.e. No game would run on GTX970. Nor would 3DMark. It seems an external monitor is still a necessary fix. What's working: system recognizes gpu driver installed no problem on external screen [Partially] Optimus working, just don't disable the GTX960M in Device Manager. Only works for Furmark. Background In the spring, I came to the States for one-semester exchange. I obviously couldn't get myself a full-size gaming rig, so I chose to build an eGPU with my MBPr13 2015. I got my AkiTio Thunder 2 and GTX970 then, for about $500. Later in the summer, I purchased a XPS15 (discussed by the low-voltage cpu in my MBPr 13), was enthralled by its borderless display. It came with a TB3 port, but the only option out there for TB3 is Razer Core, another $500 investment. In the mean time, A few TB3 to TB adapters rolled out, currently only Kanex and StarTech.com models available, for around $80-100. I asked a bunch of questions regarding AkiTio Thunder 2 + TB3-TB adapter + eGPU on Amazon but no luck. So I decided to get one myself and try it out. About the adapter I got it on amazon for $100. https://www.amazon.com/gp/product/B01EJ4XL08/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1. In fact the StarTech.com one is 20 bucks cheaper, and I believe they should harness similar technology under the hood, but I would trust Kanex for I have already owned their USB3.0 hub and it worked pretty well. The hardware setup (Picture coming soon, when I get back dorm) The software setup Download the newest NVIDIA driver. update the TB3 firmware and TB3 management software on Dell.com, or as instructed on https://thunderbolttechnology.net/updates per manufacturer. In the UEFI settings, turn on all the checkboxes in Thunderbolt tab, and make sure the thunderbolt security settings is set to lowest (Cuz Akitio Thunder 2 is not verified for TB3). Or you can manually consent in windows, if the security level is normal. Plug the setup in, and power on. Windows should boot just fine. Use display driver uninstaller to remove the old drivers. http://www.guru3d.com/files-details/display-driver-uninstaller-download.html Install the newest driver downloaded in step 1 reboot, and you should be able to see all three graphics card in Device Manager. (Intel 530, GTX960M, GTX970). You are free to disable GTX960M, but that doesn't help anything so far. :-( Result summary Geforce experience recognizes GTX970 no problem NVIDIA Control Panel recognizes all three with no problem. Under internal display, no game would run with GTX970, even after disabling GTX960M. GTX970 shows up properly in the GPU indicator, but it's always 'inactive' It works! Just don't disable GTX960M, and tasks will be automatically assigned to GTX970 when needed. Only works for Furmark. No games and 3D Mark would work. External monitor works flawlessly. Can't get 'duplicate' projection mode to work though. Trying to fix the internal display (Optimus) problem As my MP-CL1 micro projector seems to defect, I've no access to external display yet to test the card out. And I'm not yet able to get the eGPU running on internal display either. What I have tried: modifying the nvidia driver per this video, with no avail. [in progress] just purchased this headless hdmi plug to simulate a dummy display, and use Win+P with screen share option. [just contemplating] maybe should get Razer driver to work? But Razer Synapse should only recognize Razer Core, so need a side-door. They say the driver is open-source, but I cannot find it on Github anyway. Just don't disable GTX960M and it partially works (only for furmark). Maybe furmark is rendering the content internally and pipe the image out through a different gpu manually? Windows 8.1 not working. I just installed a copy on my SanDisk SSD 500 external SSD. GTX970 cannot co-exist with GTX960M, and disabling GTX960M still doesn't enable rendering on GTX970. With external display Will update once I get my MP-CL1 working (hopefully it's just a drained battery), or when I get back to Hong Kong. Just remembered there's a common area in my dorm with a TV. Got to try it out some time. Tried out on the TV, able to achieve ~20000 on Sky Diver. With GTX960M it's around half

Hey sorry for the late reply. In order to drop the files in the .img, you have to open up the .img with PowerISO (7zip didn't work for me) and add the files from there. As for step 5, you have two ways of editing it. You can either extract startup.bat and add your pt MEM script with Notepad or edit it directly in Setup 1.30 I hope that helps!

1. Clevo P775DM2-G: 2. RAZER 3. DELL ALIENWARE 4. MSI 5. HP? http://www.tbreak.com/nvidia-gtx-1080m-specifications-pop-up-and-its-nothing-short-of-a-beast https://tech4gamers.com/clevo-p775dm2-g-gaming-laptop-equipped-with-gtx-1080m/

@99benns you already solved the problem? I have mbp 2015, I am afraid to invest in egpu and have the same problem

Correct

@JohnyB33 awesome, thanks! So after I plug the 4pin to the barrel adapter, and the barrel into the PCIe board, would the last step be to directly plug in the 6pin and 8pin from the PSU to the 970? Would all of my power needs be satisfied at that point?

http://www.ebay.com/itm/ANTRON-CHD04-12BARREL2-5-MOLEX-4-PIN-TO-12V-BARREL-ID-2-5mm-OD-5-5mm-USA-MADE/261920944843

Thanks for the info @HiroCool. I'd be interested to know how you created the EFI boot sector with Win 8.1 as I tried this without sucess

How do you do that? I'm stuck at step 4 & 5, unsure what to do. Edit: I was able to load new dsdt file with the compiler and now have large memory.

Hi Guys, Please find my work below. Unexpected results with my setup: - The card is being detected properly by Windows (without the warning insufficient ressources available within device manager) one in two. - When properly detected, I can't start game with it as it will freeze and fan will try to turn but fail most of the time. It looks like the GPU isn't receiving enough power. I'm using a 203W power supply from an XBOX 360 and followed the soldering patern attached. I checked and I have proper 12v flowing from the power supply to the barrel plug then to the 3 yellow pins. Any idea ?

Hi @HiroCool, thanks for your reply. I am aware that the board receives power via a barrel plug. My question is how exactly I would convert one of the power cables coming from the 430 PSU to a barrel plug.

NV reduced power draw w/ latest drivers, check clocks & TDP using GPU-Z. No problem, I just received my P870DM-G , currently messing with the GPU heat sink...btw outstanding cooling system. ----------------------------Updated----------------------------

Thank you, that you like my design Here are some more pictures: (This picture is only for demonstrate a view trough all components)