Question GPU only running at PCI-e 8x

Dec 5, 2020
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GPU-Z says that my graphics card (RX 580 4GB) is only running at PCI-e 2.0 8x, but my motherboard should support 16x (it's even written on the board). CPU-Z also shows that the link width is 8x, but the max supported is 16x. There's only one PCI-e slot on my motherboard.

What can be causing this? I already went to the BIOS, but nothing mentioned PCI-e lanes or anything similar. I'm also using the Ultimate Performance power plan on Windows.
 

COLGeek

Cybernaut
Moderator
Try this. Remove the GPU and then re-start the system using only the integrated GPU. After the system fully re-starts, power down and re-install the GPU. Make sure you firmly insert into the slot.

Fire back up and see if it is re-detected properly.
 
Dec 5, 2020
4
0
10
0
Try this. Remove the GPU and then re-start the system using only the integrated GPU. After the system fully re-starts, power down and re-install the GPU. Make sure you firmly insert into the slot.

Fire back up and see if it is re-detected properly.
I tried this but it's still at 8x 2.0.
 

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