My graphics card will not connect at PCIe x16

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HamBown81

HamBown81

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Aug 3, 2017
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I have an ASUS Sabertooth 990FX R2.0 with an AMD FX-8370 CPU. I recently got my XFX RX 580 GTR-S 8GB replaced on RMA and I can't get it to connect at PCIe x16.

I have tried a ton of stuff and have twice posted a long thread showing all of my testing that got zero responses. I am hoping it is because of TLDR and not a lack of any further suggestions.

Any help would be appreciated, I have done a ton of troubleshooting already.
 
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Only thing you could have done is test in a system with 3.0 slots,but you don't have acces to it afaik. Seems that rma is a good thing to do. If they do test in a system like that and find the gpu good is it the slots that make a difference.
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I was thinking that as well but have been unable to test as I do not have a board with PCIe 3.0 slots.

I will try an older version of GPU-Z and see what that says.

The reporting with this card has been all over the place and highly affected by the driver package so that has definitely been in the back of my mind and one of the reasons I am hesitant to go ahead with the second RMA. If it is just reporting wrong I don't want to send it back...
 
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I am going to check anyway when I get home but Radeon Settings and even the Windows reporting in the display adapter properties both show the PCIe link width as x8

XFX has offered to take the card back and test it for me, I just really don't want to be without a GPU for a month...again. Especially if it is frivolous or unnecessary.

I am leaning more and more towards that direction though.
 
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Maybe but probably also pcie 3.0 which your motherboards pcie slots don't support.




That choice is up to you.

Might also want to check in the bios what it says.
 
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My BIOS does not have any options for changing PCIe link width. Trust me, I checked.

In terms of the card reading wrong 2.0 vs 3.0, should my previous RX 580 not have also done that? The one that I already got RMA'd was reading correctly as PCIe 3.0 x16 @ x16 2.0 under the same circumstances.
 
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The old card was reading PCIe 3.0 x16 @ x16 2.0 in GPU-Z.

I only know that because I had installed it in a slot other than #1 to try and give my CPU cooler some breathing room when I moved the old card to slot #1 it read properly. That card was RMA'd because it couldn't handle the factory OC but the link width was reading correctly.
 
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Here are my multiple GPU-Z and HWiNFO64 results

nFhuyVI.png

iI1DZ7M.png

 
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I definitely agree. Just for the heck of it, I checked the resistance from pin 1A to 81B and it was nearly zero so that rules out the suggestion that DRagor made, I think. Who knows...

The last card I sent back, they said it was the first one they heard of that couldn't perform at the advertised clocks. Now they are saying this is the first they have heard of this situation. So do I just have terrible luck or is my system somehow borking these GPUs?

Regardless, I think I am going to send it away. Hopefully the third time will be the charm... 🙁
 
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Only thing you could have done is test in a system with 3.0 slots,but you don't have acces to it afaik. Seems that rma is a good thing to do. If they do test in a system like that and find the gpu good is it the slots that make a difference.
 
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