How to stuff 8 x GTX980 into on server?

Hi,

i want to spend some money into a machine with 8 x GTX980.

I was told that Tyan does not support this gpu (seems like these boards do not even recognize these cards let alone 8 of them).

Another option would be a 8 slot board from Supermicro.

Unfortunately nobody can tell me whether this combination will work and i do not want to spend some k$ on testing.

Has anybody out here any experience (especially good ones) with such a machine?

Thanks in advance!