Question Why 8 lanes and not 16?

[tinkertron]

I have a EVGA Nvidia GeForce RTX 2060 graphic card and I have it slotted into the PCIe 4.0 x16 on a ASUS Mainboard ROG STRIX X570-I
I also try it on the Gigabyte X570 AORUS PRO WIFI, when I run CPU-Z on both boards it states Graphics Interface PCI-Express 3.0 Link x8 max supported x16

Is it running only 8 and not the full 16?
If so, how to I get it running at 16 lanes?

 

[kanewolf]

I have a EVGA Nvidia GeForce RTX 2060 graphic card and I have it slotted into the PCIe 4.0 x16 on a ASUS Mainboard ROG STRIX X570-I
I also try it on the Gigabyte X570 AORUS PRO WIFI, when I run CPU-Z on both boards it states Graphics Interface PCI-Express 3.0 Link x8 max supported x16

Is it running only 8 and not the full 16?
If so, how to I get it running at 16 lanes?

What CPU?

 

[tinkertron]

What CPU?

AMD Ryzen 5 3400G AM4

 

[Math Geek]

your cpu is limited to 3.0 x8.

that's why you're getting it. all the "G" series are limited that way.


the good news is you are not losing any performance with that gpu. x8 is plenty of bandwidth for a 2060.

 

[kanewolf]

your cpu is limited to 3.0 x8.

that's why you're getting it. all the "G" series are limited that way.


the good news is you are not losing any performance with that gpu. x8 is plenty of bandwidth for a 2060.

YEP. That is why I asked. CPU only provides an x8 interface.

 

[Math Geek]

i was looking to link the spec sheet showing this limitation, but it does not appear to say it as far as i can see. kind of odd.

i know it's true but can't link to prove it. lol