[Solved] AKiTiO Thunder2/3 internal molex connector.  

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Splitframe
Active Member
Joined: 3 months  ago
Posts: 18
December 8, 2016 9:54 am  

What connector does the AKiTiO Thunder2/3 use to connect the PCI-E board to the
TB2/3 board?

Pic(by euqlaog):

 

EDIT: it's goalque's picture

Edited: 3 months  ago

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nando4
Honorable Member
Joined: 3 months  ago
Posts: 404
December 8, 2016 10:06 am  

The Thunderbolt board and PCIe board are connected using a x4 PCIe slot connector.

In the picture you zoom in on the two white power sockets. That's for the yellow/black cable that shuttles up to 75W across over to the TB board to the slot. Is that what you are interested in?

@DanKnight from AKiTiO will be able to identify those headers.

Edited: 3 months  ago

DIY eGPU Setup 1.35eGPUing since '09


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Splitframe
Active Member
Joined: 3 months  ago
Posts: 18
December 8, 2016 5:40 pm  
Posted by: nando4

The Thunderbolt board and PCIe board are connected using a x4 PCIe slot connector.

In the picture you zoom in on the two white power sockets. That's for the yellow/black cable that shuttles up to 75W across over to the TB board to the slot. Is that what you are interested in?

@DanKnight from AKiTiO will be able to identify those headers.

   

Yes the white ones. I saw the before sometimes, but cannot find them online.
I want to get power from them to not solder anything on the AKiTiO itself.

Edited: 3 months  ago

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theitsage
Reputable Member
Joined: 3 months  ago
Posts: 249
December 8, 2016 9:50 pm  

I don't have a close up but is this what you're looking for? I soldered a spare cable into J6 and was planning to power the GPU through it. I haven't tried that though.

Edited: 3 months  ago

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Yukikaze
Reputable Member
Joined: 3 months  ago
Posts: 201
December 9, 2016 11:10 am  
Posted by: theitsage

 

I don't have a close up but is this what you're looking for? I soldered a spare cable into J6 and was planning to power the GPU through it. I haven't tried that though.

 

Hi itsage, assuming my MOSFET transplant doesn't solve my issue, I was planning on trying to power the card via a separate power input from the PSU, rather through the TB2 board itself, in a similar manner to what you are describing here (with the hopes that the power circuitry is shot, but the logical circuit is still alive). What is the pinout on the J6 slot? Does it clone the one of the actual white connector (so in your picture, the two left wires are 12v, the two right ones are ground)?

Thanks!


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nando4
Honorable Member
Joined: 3 months  ago
Posts: 404
December 9, 2016 11:40 am  

@Yukikaze, the the OWC Helios (nearly identical to Thunder2) has both the J4 and J6 headers. The difference being the OWC is shipped with a 120W AC adapter and J6 modified as below. Then it can supply the 75W to the slot rather than 25W of the Thunder2:

AKiTiO Engineer said: Re: Development for graphics applications

Message: The board is designed for a maximum of 25W on the PCIe slot, this cannot be modified. The only option for extra power to the card is with that 4-pin connector and a bigger power adapter that is plugged into the existing DC jack.

You mentioned that you have the skills to modify the circuit board yourself, so with this drawing, you should be able to add a 4-pin connector to the pins labelled J6 for extra power. You can then replace the power adapter with a more powerful one sufficient for 75W. Having said that, the maximum power must NOT exceed 120W and as you said earlier, the modification is at your own risk.

mMwJg06.jpg

 

DIY eGPU Setup 1.35eGPUing since '09


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Splitframe
Active Member
Joined: 3 months  ago
Posts: 18
December 10, 2016 1:00 pm  

It's a 4 Pin JST XH 2.5mm in the Thunder 3


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