DELL Inspirion 7391 with i7-10510U - TB3?
 
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DELL Inspirion 7391 with i7-10510U - TB3?  

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Igor Dasunddas
(@igor_dasunddas)
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Joined: 6 months ago
 

Hello guys and girls,

First: thanks for such a precious gem, namely this website and forum.

I just bought the Dell Inspirion 7391-based laptop / convertible with a i7-10510U, 16gb DDR3-RAM, 512GB NVMe-SSD.

I know I should have asked beforehand, but it was a nice deal and I'd really like this notebook for daily use.

Now since I intend to replace my desktop, I would like to know if I can connect an external GPU-case via Thunderbolt 3. The XPS13 models claim they have a x4 connection while this model didn't, but I hope so.

I am rarely playing games at all, but when I do, I want a good performance on 1080p or 2160p. I play RocketLeague for the most part.

Will this laptop (I just ordered it, so I could return it within 14 days if it happens to not satisfy my needs) be able to run a TB3-eGPU-box with say a 1080GTX?

Does anyone by any chance know anything about it?

Thanks for your help and time in advance!

Laptop: DELL Inspiron 7391 2-in-1, i7 10510U, 16GB DDR3-RAM, 512GB nVME-SSD, Active Stylus
eGPU: Aorus Gaming Box 1080 (nVidia GeForce GTX1080) on Thunderbolt 3 connection

 
2019 13" Dell Inspiron 13 7391 2-in-1 [10th,4C, U] + GTX 1080 @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 1909 [build link]  


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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@igor_dasunddas It has only one Thunderbolt 3 port so x4 PCIe connection is not a given. In late 2019, I would find it very silly for any manufacturers to implement Thunderbolt 3 connectivity at x2 PCIe however. You can download and run HWiNFO64 then expand the PCI Express Root Ports to see more details. This is a screen capture on MSI Prestige 15 which has i7-10510U CPU. You can see under PCI Express Root Port #9, there's a PCI Express Bus #3 with an x4 connection going to Intel JHL7540 Thunderbolt 3 controller.

external graphics card builds
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2020 13" MacBook Pro [10th,4C,G] + RX 5700 @ 32Gbps-TB3 (Prototype eGPU Enclosure) + macOS 10.15.4 & Win10 1903 [build link]  


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Igor Dasunddas
(@igor_dasunddas)
Active Member
Joined: 6 months ago
 

@itsage

I just got my device today and I tried my best, but I am not entirely sure, if this device has full x4 TB3 support.

According to a Service and Setup Manual I found on Dell, it apparently is expected to support full speed. The attached screenshot suggests so, too.

Screenshot of HWinfo64 on Dell Inspiron 7391, 2019

Edit: just figured I could start the "Intel Thunderbolt (TM) Control Center" and in the "Info" menu it says the following:

Thunderbolt(TM) Software
   Application version: 1.0.18.0
   Controller-driver-version: 1.41.648.4

Thunderbolt(TM) Controller 1
   Thunderbolt(TM) Generation: Thunderbolt 3 (15E8)
   Port count: 1
   Security level: Kernel-DMA-Protection (SL1)
   NVM Firmware version: 41.0
   External GPU support: yes

So I guess it does support Thunderbolt 3 with 4 lanes or at least it seems to say so.

This post was modified 6 months ago

Laptop: DELL Inspiron 7391 2-in-1, i7 10510U, 16GB DDR3-RAM, 512GB nVME-SSD, Active Stylus
eGPU: Aorus Gaming Box 1080 (nVidia GeForce GTX1080) on Thunderbolt 3 connection

 
2019 13" Dell Inspiron 13 7391 2-in-1 [10th,4C, U] + GTX 1080 @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 1909 [build link]  


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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@igor_dasunddas That is most likely a x4 PCIe 3.0 Thunderbolt 3 connection. The only unknown is the particular TB3 controller inside the laptop. That information would only show up when you have a Thunderbolt 3 connected.

 

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 13" MacBook Pro [10th,4C,G] + RX 5700 @ 32Gbps-TB3 (Prototype eGPU Enclosure) + macOS 10.15.4 & Win10 1903 [build link]  


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Igor Dasunddas
(@igor_dasunddas)
Active Member
Joined: 6 months ago
 

Alright. I will probably try to get my hands on a box and see if a 980gtx works with it.

I wiall post a build once I accomplished it. Thank you very much for your time and help!

Laptop: DELL Inspiron 7391 2-in-1, i7 10510U, 16GB DDR3-RAM, 512GB nVME-SSD, Active Stylus
eGPU: Aorus Gaming Box 1080 (nVidia GeForce GTX1080) on Thunderbolt 3 connection

 
2019 13" Dell Inspiron 13 7391 2-in-1 [10th,4C, U] + GTX 1080 @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 1909 [build link]  


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joevt
(@joevt)
Noble Member
Joined: 3 years ago
 

I don't see any Thunderbolt controllers in the pictures. Connect at least a USB device (even a mouse or keyboard will do).

15e8 is the JHL7540 Thunderbolt 3 NHI [Titan Ridge 2C 2018] according to the pci database but I think 2C refers to the JHL7340.

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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Igor Dasunddas
(@igor_dasunddas)
Active Member
Joined: 6 months ago
 

I will connect my phone later today and make another screenshot. I also ordered a 1080 gaming box from gigabyte, scheduled to arrive till Saturday.

Edit: it seems I don't have a proper USB-C-to-USB-C-cord.... waiting for my box to arrive...

This post was modified 6 months ago

Laptop: DELL Inspiron 7391 2-in-1, i7 10510U, 16GB DDR3-RAM, 512GB nVME-SSD, Active Stylus
eGPU: Aorus Gaming Box 1080 (nVidia GeForce GTX1080) on Thunderbolt 3 connection

 
2019 13" Dell Inspiron 13 7391 2-in-1 [10th,4C, U] + GTX 1080 @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 1909 [build link]  


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Igor Dasunddas
(@igor_dasunddas)
Active Member
Joined: 6 months ago
 

Hello again,

I've just gotten my Gigabyte Aorus 1080GTX Gaming Box today and attached it to my Dell Inspiron 7391 (7000 2-in-1) laptop and here's hopefully the right screenshot:

I'll check out if it works. The noise seems okay (at the moment), though I might have to look into changing the fans as mentioned somewhere in another thread.

If you got any comments on this (whether positive or negative), please feel free to let me know.

Edit: RocketLeague works, but it seems I had to update the drivers (or perhaps I didn't have to...). In 1980x1080 internal display on max settings absolutely flawless. I'll try to run some benchmark / write a build once I also tested out the external monitor ([email protected]).

This post was modified 6 months ago

Laptop: DELL Inspiron 7391 2-in-1, i7 10510U, 16GB DDR3-RAM, 512GB nVME-SSD, Active Stylus
eGPU: Aorus Gaming Box 1080 (nVidia GeForce GTX1080) on Thunderbolt 3 connection

 
2019 13" Dell Inspiron 13 7391 2-in-1 [10th,4C, U] + GTX 1080 @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 1909 [build link]  


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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@igor_dasunddas You're good to go! As can be seen under the PCI Express Root Port #5, there's a PCI Express x4 Bus going to the Alpine Ridge Thunderbolt 3 controller which hosts the GTX 1080 eGPU. Enjoy your setup!

 

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 13" MacBook Pro [10th,4C,G] + RX 5700 @ 32Gbps-TB3 (Prototype eGPU Enclosure) + macOS 10.15.4 & Win10 1903 [build link]  


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(@lukasz_kucharski)
New Member
Joined: 5 months ago
 

@igor_dasunddas

Hi.
How's the performance in games? Is there no problem?

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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