AMD PCI-E 4.0 riser issues explanation

[natarle]

Hello,

 

I'm planning my next upgrade and I plan to go from a 2700X to a 5700X3D and a Nvidia RTX 2070 to a AMD 7800 XT. As the case I'm using is a Silverstone FTZ01 ITX case, I  need a Riser card/cable for my GPU, but I hear and seen post about issues with AMD CPU to GPU with riser cables for pci-e 4.0, but unable to find any good explanation on what is the issues and how to fix it only.

 

I would like to know if the issue has been solved since it was first known, and what I should been looking out for. I would like to use Silverstone's RC06 riser card as it's was made for the case, but if I need to use a cable I would like to know which to get.

 

Thank you for your help

[PDifolco]

3 minutes ago, natarle said:

Hello,

 

I'm planning my next upgrade and I plan to go from a 2700X to a 5700X3D and a Nvidia RTX 2070 to a AMD 7800 XT. As the case I'm using is a Silverstone FTZ01 ITX case, I  need a Riser card/cable for my GPU, but I hear and seen post about issues with AMD CPU to GPU with riser cables for pci-e 4.0, but unable to find any good explanation on what is the issues and how to fix it only.

 

I would like to know if the issue has been solved since it was first known, and what I should been looking out for. I would like to use Silverstone's RC06 riser card as it's was made for the case, but if I need to use a cable I would like to know which to get.

 

Thank you for your help

I don 't recall any specific AMD issue with risers, the problems people have are with the risers themselves afaik

As the electrical lanes are pretty fragile, it's easy to either have a bad quality defective riser or to damage it ...Especially Gen4 risers, Gen3 seem to be safer - but personally I've used a CoolerMaster Gen4 riser with no issue (was with a 5900X and an RTX3080)

[podkall]

Do you have riser in your current build? Why do you "need" a riser?

 

Just now, PDifolco said:

I don 't recall any specific AMD issue with risers, the problems people have are with the risers themselves afaik

As the electrical lanes are pretty fragile, it's easy to either have a bad quality defective riser or to damage it ...Especially Gen4 risers, Gen3 seem to be safer - but personally I've used a CoolerMaster Gen4 riser with no issue (was with a 5900X and an RTX3080)

Yeah, like running different PCIe version than the riser supports, or something like that can struggle to work or has to be set to certain version.

 

Or perhaps with GPUs that have 8x lane kind of deal to them which isn't the case for 7800 XT.

[natarle]

1 hour ago, podkall said:

Do you have riser in your current build? Why do you "need" a riser?

 

Yeah, like running different PCIe version than the riser supports, or something like that can struggle to work or has to be set to certain version.

 

Or perhaps with GPUs that have 8x lane kind of deal to them which isn't the case for 7800 XT.

My case is a Silverstone FTZ01 so it uses a riser card to connect the GPU to the CPU

[podkall]

17 hours ago, natarle said:

My case is a Silverstone FTZ01 so it uses a riser card to connect the GPU to the CPU

well, if you by chance still have 2070 while also the 7800 XT, you can try if the 7800 XT works, and as a potential backup you can use the 2070