GPU might be slower than normal?

[Oxicoi]

So I recently "broke" my motherboard. Motherboard is a biostar x370 gt5. The slot you put in the GPU came off and I can't use it anymore. Luckily, there was another one, but it was named something like "PCIE-SB." Looked the same as the other, so I put it in and everything is fine. When I go to play games though, everything does not even get to 60fps. My GPU is a 970 and is OC'd correctly. Why did my performance all of sudden drop? Never had this problem. Please don't tell me I have to buy a new mobo.

 

[cin19]

When you read the MB manual or check the MB specifications from biostar site, you will see this: 1 x PCI-E x16 3.0 Slot(x16 for Ryzen CPU only, NPU/APU run at x8 speed), and 1 x PCI-E x16 2.0 Slot(x4)(share bandwidth w/ PCI-E x1 slot, when PCI-E x1 is occupied, PCI-E x16(x4) will run at x1 speed). http://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=873#specification

Because the pcie 3.0 x16 is damaged, now you used the pcie-SB, which is the pcie2.0X4, I guess you may used other add-on card, like the sound card in the pic-e x1, then the speed of the pcie-sb will drop more. Recommend to buy other MB, sorry.

 

[Oxicoi]

When you read the MB manual or check the MB specifications from biostar site, you will see this: 1 x PCI-E x16 3.0 Slot(x16 for Ryzen CPU only, NPU/APU run at x8 speed), and 1 x PCI-E x16 2.0 Slot(x4)(share bandwidth w/ PCI-E x1 slot, when PCI-E x1 is occupied, PCI-E x16(x4) will run at x1 speed). http://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=873#specification

Because the pcie 3.0 x16 is damaged, now you used the pcie-SB, which is the pcie2.0X4, I guess you may used other add-on card, like the sound card in the pic-e x1, then the speed of the pcie-sb will drop more. Recommend to buy other MB, sorry.

I only have the GPU in a PCIE. Nothing else is in the other PCIe slots. Will it still slower performance?

EDIT: Is the "x4" the speed of it or how long it is? Because the one I put it in is the same as the one I had in, which was the regular pcie.

 

[cin19]

Here is the review for the pcie scaling https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_PCI_Express_Scaling/24.html
In 1080p average performances: pcie 3.0x16 =100%, and the pcie2.0 x4 = 87% something.

I don't know what fps you got before, the pc( gpu) did lose more 15% perfomance in fps, and you are better to buy othe MB, but it is up to you.

 

[Oxicoi]

Here is the review for the pcie scaling https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_PCI_Express_Scaling/24.html
In 1080p average performances: pcie 3.0x16 =100%, and the pcie2.0 x4 = 87% something.

I don't know what fps you got before, the pc( gpu) did lose more 15% perfomance in fps, and you are better to buy othe MB, but it is up to you.

I used to get around 100+ fps. So guessing I'd get around 70-85. Sadly that isn't the case. I bought a new motherboard just in case anyway. Thanks for trying though.