Server form factor motherboard with 12 PCI-E slots?

[frowertr]

Looking for a motherboard with either 12 single width or 6 double width PCI-E slots. Essentially, I'm trying to copy a Tyan/Supermicro six GPU Tesla server but without spending $7K just for the barebones server before I even populate it with GPUs.

I'm wanting to put them into a 4U rackmount chassis. I know if what I want even exists outside of custom/proprietary design that it won't be in an ATX form factor which is ok.

Been doing some looking the last few days and haven't come up with anything. Any ideas?

 

[Fallen Kell]

Well, even if you find a board (which I suspect is possible), finding a case is going to be your real problem. The board you need is really just any server/workstation board with 6 PCI-e 3.0 16x (8x electrical) ports and then use PCI-e riser cables like the one linked:

http://www.amazon.com/PCI-E-Express-.../dp/B008BZBFTG

 

[frowertr]

Well, even if you find a board (which I suspect is possible), finding a case is going to be your real problem. The board you need is really just any server/workstation board with 6 PCI-e 3.0 16x (8x electrical) ports and then use PCI-e riser cables like the one linked:

http://www.amazon.com/PCI-E-Express-.../dp/B008BZBFTG

Yeah, I am beginning to think there is a reason those Tyan/Supermicro Tesla servers are so damn expensive. Because they are all custom built with no generally available parts to build you own if you wanted to.