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Stupid question about pci-e

Go to solution Solved by jaslion,

Could you like type normally next time?

 

As for combining. No not possible.

Can I combine with riser card two pci-e x8 ports into one pci-e x16? I understand that the question is stupid, but do not throw sneakers at me 🙂

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If you mean if you can connect two cards to a single PCIEX16 slot, that is not possible without bifurcation support.

mY s YsTeM iS Not pErfoRmInG aS gOOd As I sAW oN yOuTuBe. WhA t IS a GoOd FaN CuRVe??!!? wHat aRe tEh GoOd OvERclok SeTTinGS FoR My CaRd??
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Just now, Levent said:

If you mean if you can connect two cards to a single PCIEX16 slot, that is not possible without bifurcation support.

I think they are specifically asking to make their 2 x8 ports the speed of one x16 port here.

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47 minutes ago, Levent said:

If you mean if you can connect two cards to a single PCIEX16 slot, that is not possible without bifurcation support.

No.  i mean one pci-e x16 gpu to two pci-e x8 ports.  Experimenting with an old server motherboard.  It has two pcie x8

 
image.png.d4630058e106544dcf42621b59b25def.png
 
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12 minutes ago, dr_dark said:

No.  i mean one pci-e x16 gpu to two pci-e x8 ports.  Experimenting with an old server motherboard.  It has two pcie x8

 
image.png.d4630058e106544dcf42621b59b25def.png
 

Dude just type normally instead of putting verified marks and making a scroll list. This is literally unreadable.

 

Ok so what server? What board even? We need more info here. It is technically possible but your hardware needs to support it.

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29 minutes ago, dr_dark said:

Can I combine with riser card two pci-e x8 ports into one pci-e x16? I understand that the question is stupid, but do not throw sneakers at me 🙂

No, but you can use one x8 slot for the x16 GPU.

Main: AMD Ryzen 7 2700X, Nvidia GTX 1080 Ti, 16 GB 3200 MHz DDR4 Fedora 35 x86_64

Secondary: Intel Xeon W3680, NVIDIA GeForce RTX 2060, 24 GB 1333 MHz DDR3 Windows 10 Home x86_64

Server: 2x Intel Xeon X5670, 72 GB 1333 MHz DDR3-R Ubuntu Server 20.04.3 LTS x86_64

Home Laptop: Intel Core i5-L16G7, 8 GB 4267 MHz LPDDR4x Windows 11 Home 21H2 x86_64

Work Laptop: Intel Core i7-10510U, NVIDIA Quadro P520, 8 GB 2667 MHz DDR4 Windows 10 Pro 21H2 x86_64

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27 minutes ago, jaslion said:

Dude just type normally instead of putting verified marks and making a scroll list. This is literally unreadable.

 

Ok so what server? What board even? We need more info here. It is technically possible but your hardware needs to support it.

 

I apologize for the font. Supermicro x7db3 motherboard, dual xeon e5450. It became interesting: if port bifurcation is possible, is it possible the other way around? But apparently this is impossible.

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50 minutes ago, dr_dark said:

 

I apologize for the font. Supermicro x7db3 motherboard, dual xeon e5450. It became interesting: if port bifurcation is possible, is it possible the other way around? But apparently this is impossible.

Ok so do you want to combine your 2x8 ports to a single x16 port or is it the opposite you want to do now?

 

Either way this board doesn't support bifurcation it seems and combining pcie ports isn't possible.

 

Besides this server is ancient and slow so getting a faster pcie bandwith isn't really going to do much if the cpu can't keep up.

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