PCI-e bandwith issue | Disconnecting peripherals
 
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PCI-e bandwith issue | Disconnecting peripherals  

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hnm_ntn
(@hnm_ntn)
New Member
Joined: 1 year ago
 

Hello,

 

It seems the problem is rather common, haven't found any remedy that works for me though.

I have Latitude 5480 + Sonnet Breakaway with RX5700. The performance is really great - I can play common titles on 4k display with freesync no problem. But.

All of my peripherals connected through a USB hub (ORICO A3H13P2), which is connected to single USB port on a laptop, so only three ports are used - TB3, power and USB. I have a pretty common issue regarding devices connected to the hub - they do randomly disconnect, like "blinking", not even disappearing in the device manager. I tried connecting them directly to the laptop, changing USB port used on the laptop, disabling the dGPU (as it is using some PCI-e lanes), changing the power plan, disabling selective suspend and disallowing suspend of the device for power-saving in device manager. None of this worked for me. The issue persists not only when gaming, but even while doing pretty simple stuff, and with about 30% of system load.

As I see, the problem lies solely in the PCI-e bandwidth - it's just not enough for eGPU and USB simultaneously.

Are there any remedy for this? I guess I should've trusted Intel Thunderbolt utility when it said "eGPUs are not supported"...

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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Женя Шаталов
(@zhekashatalov1986)
New Member
Joined: 9 months ago
 

@hnm_ntn

I have almost the same problem. Keyboard and eth card are disconnected when I plug in eGPU via NGFF slot, AND my BIOS becomes crazy with many new advanced settings. I have acer e5 575. I tried almost everything, noting helps, as you said it is not enough pci-e bandwith.

Acer e5 575, Core i3 7100U, 8Gb RAM, GTX 1070 8Gb STRIX, EXP GDC NGFF


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Женя Шаталов
(@zhekashatalov1986)
New Member
Joined: 9 months ago
 

@hnm_ntn,  I have decided this problem with using adapter NGFF M.2 key M to M.2 A+E key. Everythin works correctly with no problems. Here is link to ali:

https://aliexpress.ru/item/4000274279430.html

 

 

Acer e5 575, Core i3 7100U, 8Gb RAM, GTX 1070 8Gb STRIX, EXP GDC NGFF


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