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Building custom cables from scratch
 

Building custom cables from scratch  

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harkonnen
(@mehenn)
Estimable Member
Joined: 3 years ago
 

Now that I have my eGPU up and running is time for finishing modding the Akitio Thunder2. I will start by building a custom cable.

Materials:

I cut off the PCIe extender and the plug (with 5-10cm of wire) and did all the wiring and covered all with a heat shrink tube. The first part of the operation is done. Tomorrow I am gonna find a spot to drill a hole inside the box (near the power socket) and pull the wires through and connect with the 6pin female on the other side of the hole. I still have to choose if I will pose the wires between the enclosure and the motherboard or between the motherboard and the GPU.

Tomorrow I will get some Rubber Grommets that will prettify the setup. I will post the final result once finished.

IMG 0834

late-2016 13" Macbook Pro + [email protected] (TB3 to TB2 adapter) (AKiTiO Thunder2) + macOS 10.12.3
late-2016 13" MBP + Quadro M2000/FirePro WX5100/GTX750-TB3 (AKiTiO Thunder3) + macOS 10.12.3
(Custom Thunder cables)


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harkonnen
(@mehenn)
Estimable Member
Joined: 3 years ago
 

Soo!

 

This endeavour was a BUST. Since the Akitio inner part slides in the outer part, the cable was way to short for me to solder the connectors inside the box. So i started from scratch and from the other side. Meaning that I will start with a 6pin PCI male connecter attached to a 30cm cable (maybe 2cm less since I will cut one socket off). Will pull the wires through the drilled hole (in both of the cases inner/outer) from inside to outside and solder the 8 pin female/barrel plug outside the box. Then will pull the cable back in the case, leaving only the 8 pin soldered part inside. 

This hopefully will give me the room to slide the 2 Akitio parts all the way (it has 23cm and the cable should have 25-26cm) so I can remove/update/replace the GPU. I ordered a 40cm long 6pin cable which will replace the 30cm one once it arrives.

Will continue working on Monday ...

late-2016 13" Macbook Pro + [email protected] (TB3 to TB2 adapter) (AKiTiO Thunder2) + macOS 10.12.3
late-2016 13" MBP + Quadro M2000/FirePro WX5100/GTX750-TB3 (AKiTiO Thunder3) + macOS 10.12.3
(Custom Thunder cables)


itsage liked
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harkonnen
(@mehenn)
Estimable Member
Joined: 3 years ago
 

Mission accomplished!!!

I used:

After using a file to smooth the edges of the hole and a black marker to darken the metal where drilled, I started by cutting one of the splitters right near the 6pin socket and ending up with a 28cm cable with a male 6pin socket. I also cut the 8pin extender in half and cut the barrel plug adapter and leaving approx. 30cm of cable.

I pulled the cables from inside the box to outside and using heat shrink connectors I connected the cables form the female part of the cut 8pin extender to the cables getting out of the box. In the same shrink tubes I connected the barrel plug cable (watch the polarity!) and shortcut the 8th pin of the PSU (so I don't need the paper pin)

At the end it looked like this:

Screen Shot 2017 02 06 at 11.22.27 PM

late-2016 13" Macbook Pro + [email protected] (TB3 to TB2 adapter) (AKiTiO Thunder2) + macOS 10.12.3
late-2016 13" MBP + Quadro M2000/FirePro WX5100/GTX750-TB3 (AKiTiO Thunder3) + macOS 10.12.3
(Custom Thunder cables)


nando4, itsage and goalque liked
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itsage
(@itsage)
Famed Member Admin
Joined: 3 years ago
 

That looks very tidy. Great job documenting the whole process!

Best ultrabooks for eGPU use | eGPU enclosure buying guide


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