eGPU not being powered when using $10 M.2 to x4 adapter
 
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eGPU not being powered when using $10 M.2 to x4 adapter  

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Joshua Atie
(@joshua_atie)
Active Member
Joined: 7 months ago
 

 

I was wondering if anyone could assist me with my problem.

 

I have a nVidia Geforce GTX 1060 GPU which I am trying to use as an eGPU on my Dell XPS 13 9380 laptop.   

 

I already have an m.2 to PCI-e x4 convertor and a Thunderbolt 3 to m.2 adapter. I additionally have a 500w PSU.

 

So I connect a floppy disk power connector from my PSU to my m.2 to PCI-e converter, I insert my GPU into the x4 slot, then plug the m.2 to PCI-e converter into my Thunderbolt 3 to m.2 adapter and obviously plug the TB3 cable into my laptop’s TB3 port. 

 

Once I have done this, my laptop recognizes the connection from the TB3 to m.2 adapter (I can see this in device manager) and the LEDs on the m.2 to PCI-e converter light up (once I turn on the PSU), so I know it is also receiving power. However, my GPU’s fans do not turn on and it is pretty evident that it is not receiving power. 

 

I remember I asked about an m.2 to PCI-e x4 converter previously, and someone recommended I buy one with a voltage regulator to help power the GPU better. Unfortunately, I live in South Africa and could only find one of these converters WITHOUT a voltage regulator like this, so I don’t know if this is potentially the reason as to why the GPU is not being powered?

 

Just to be clear, I know the GPU does work because when I insert it into a regular x16 Riser Card and insert a Molex cable into the Riser and turn on the PSU, the GPU does power on and the fans start spinning.

 

Any assistance is appreciated so if you can confirm what I have hypothesized, please let me know.

 

Thanks.

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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joevt
(@joevt)
Noble Member
Joined: 4 years ago
 

@joshua_atie, if you connect a fan to the PSU, does the fan power on?

Does the GTX 1060 have a power input? If not, then it might not work with an m.2 adapter. Do you have another GPU to test?

Does the laptop recognize an M.2 NVMe connected to the Thunderbolt 3 to m.2 adapter?

An x16 riser has a voltage regulator for the 3.3V power. What if you use the x16 riser with the m.2 to PCIe x4 converter?

 

Mac mini (2018), Mac Pro (Early 2008), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Radeon Pro W5700, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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Joshua Atie
(@joshua_atie)
Active Member
Joined: 7 months ago
 

@joevt, Yes I have connected a fan to the PSU and it DOES turn on

 

The GTX 1060 does have a 6-pin power input which is connected

 

The laptop actually does not recognize the m.2 to PCI-e x4 as an m.2 NVME. I don't know if this is a major issue?

 

I cannot use the m.2 to PCI-e convertor with the x16 riser because the x4 lane is connected to the m.2 output (I bought this convertor so I don't know how I could connected the x16 Riser Card to it?)

I don't know if this info helps, but this is what happens.

 

 

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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nando4
(@nando4)
Noble Member Admin
Joined: 5 years ago
 

I jerry rigged an eGPU using such a $10 adapter ($4 in my case) and found it would sporadically allow eGPU detection, but only when attaching the video card directly to the adapter. An awkward configuration.

Detection problem was solved when I used a pricer Gen3 capable M.2 adapter like an ADT-Link R43SG or ADT-Link R43S.

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M.2 (ADT-Link R43SG) + Win10 1803 // compares M.2 vs TB3 performance inc unoptimized H-CPU BIOS [build link]  


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joevt
(@joevt)
Noble Member
Joined: 4 years ago
 
Posted by: @joshua_atie

The laptop actually does not recognize the m.2 to PCI-e x4 as an m.2 NVME. I don't know if this is a major issue?

No, my question was, does a M.2 NVMe in the M.2 slot get recognized?

Posted by: @joshua_atie

I cannot use the m.2 to PCI-e convertor with the x16 riser because the x4 lane is connected to the m.2 output (I bought this convertor so I don't know how I could connected the x16 Riser Card to it?)

There exists x1 to x16 risers. You probably wouldn't want to use that since it's only x1 but at least it might allow your GPU to be recognized.

 

Mac mini (2018), Mac Pro (Early 2008), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Radeon Pro W5700, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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