Riser for two Graphics Cards

[JMRC]

Hello

 

I was looking for a way to mount two Graphics Cards vertically behind each other. At first I thought about using 2 riser cables, but then I came across this:

I cannot understand how something like this could work. Is it possible to use a similar product for PCI-e 16x and add two Graphics Cards on one slot? Doesn't this limit the amount of data which can be transferred simultaneously?

 

Thanks

[Starelementpoke]

3 minutes ago, JMRC said:

Hello

 

I was looking for a way to mount two Graphics Cards vertically behind each other. At first I thought about using 2 riser cables, but then I came across this:

I cannot understand how something like this could work. Is it possible to use a similar product for PCI-e 16x and add two Graphics Cards on one slot? Doesn't this limit the amount of data which can be transferred simultaneously?

 

Thanks

I'd think that each card would just end up running 8x.

[Imakuni]

4 minutes ago, JMRC said:

Hello

 

I was looking for a way to mount two Graphics Cards vertically behind each other. At first I thought about using 2 riser cables, but then I came across this:

I cannot understand how something like this could work. Is it possible to use a similar product for PCI-e 16x and add two Graphics Cards on one slot? Doesn't this limit the amount of data which can be transferred simultaneously?

 

Thanks

This... seems to be an AGP splitterr, rather than PCIe.

 

It is possible to have a PCIE splitter, but that's not recommended.

[hex4]

This makes me cringe, just looks like bottleneck heaven sorry.

[mathijs727]

4 minutes ago, JMRC said:

Hello

 

I was looking for a way to mount two Graphics Cards vertically behind each other. At first I thought about using 2 riser cables, but then I came across this:

I cannot understand how something like this could work. Is it possible to use a similar product for PCI-e 16x and add two Graphics Cards on one slot? Doesn't this limit the amount of data which can be transferred simultaneously?

 

Thanks

That looks like PCI not PCI express...

[JMRC]

I know it isn't a PCI-e 16x, I said that in the question. But if something seems too good to be true ... it probably is. BTW you guys are really quick.

[Jonathan Lemmens]

12 minutes ago, JMRC said:

Hello

 

I was looking for a way to mount two Graphics Cards vertically behind each other. At first I thought about using 2 riser cables, but then I came across this:

I cannot understand how something like this could work. Is it possible to use a similar product for PCI-e 16x and add two Graphics Cards on one slot? Doesn't this limit the amount of data which can be transferred simultaneously?

 

Thanks

How about this:

 

http://www.ebay.com/itm/Supermicro-RSC-R2UF-2E8GR-2U-RHS-PCI-Express-x16-PCI-Express-x8-Riser-Card-/331724041040?hash=item4d3c4b2b50:g:V8EAAOSw7FRWYKDQ

 

I'm not sure if this will be able to drive GPU's though, also the slots are too close together to fit 2 (dualslot) GPU's

Even if this would work your motherboard still needs to support SLI/Crossfire

[SLAYR]

6 minutes ago, JMRC said:

I know it isn't a PCI-e 16x, I said that in the question. But if something seems too good to be true ... it probably is. BTW you guys are really quick.

I would run two flexible pcie extensions like how the vertical gpus are mounted on the thermaltake p5. 

[JMRC]

5 minutes ago, Jonathan Lemmens said:

How about this:

 

http://www.ebay.com/itm/Supermicro-RSC-R2UF-2E8GR-2U-RHS-PCI-Express-x16-PCI-Express-x8-Riser-Card-/331724041040?hash=item4d3c4b2b50:g:V8EAAOSw7FRWYKDQ

16x being split to two 8x. I think that would hurt performance.

[JMRC]

2 minutes ago, SLAYR said:

I would run two flexible pcie extensions like how the vertical gpus are mounted on the thermaltake p5. 

That's what I initially though of, but than I came across that weird card. But two cables is probably the way to go.

[Jonathan Lemmens]

1 minute ago, JMRC said:

16x being split to two 8x. I think that would hurt performance.

No it won't. This has been covered extensively by Linus and Luke. In many cases GPU's will be running in 8x anyway (or 16x/8x) in an SLI or Crossfire setup.

[JMRC]

18 minutes ago, Jonathan Lemmens said:

No it won't. This has been covered extensively by Linus and Luke. In many cases GPU's will be running in 8x anyway (or 16x/8x) in an SLI or Crossfire setup.

I found the video, I did not see that one coming!

[JMRC]

19 minutes ago, JMRC said:

I found the video, I did not see that one coming!

Even though during testing (cinebench) it gave the same performance, during gaming their apparently is a significant difference.

[Quaker]

1 hour ago, JMRC said:

I cannot understand how something like this could work. Is it possible to use a similar product for PCI-e 16x and add two Graphics Cards on one slot? Doesn't this limit the amount of data which can be transferred simultaneously?

In, for example, a common Haswell/Skylake system there are only 16 PCIe lines coming directly from the CPU. On a motherboard with SLI capability, these same 16 lines would go to both x16 connectors, and the cards would each run x8. (Barring additional multiplexer chips.)

So, with this riser, you also have all 16 lines going to both sockets, and the cards would also run at x8.

That is to say, whether the slots are on the motherboard or on a riser card, they still only use the same 16 lines from the CPU.

 

About the only difference is the power delivery. This would work best if both graphics cards use external PCIe power connections rather than drawing power directly from the slot (although the power lines could be made heavier to allow for this).