Good motherboard for 2-3 7990s?

[bit-fxtrader]

Curious what's a good cheap option for a motherboard for a couple of 7990s.

From a time management perspective, would a system with 2 or 3 7990s require a lot more babysitting (due to crashes) then if I split the cards into 2 or 3 systems?

Looking for a stable set and forget option.

[1715669089]

1715669089

[bit-fxtrader]

Or, a good mobo for 1 7990 and a couple of 280s? Will these play nice together in the same system?

[bit-fxtrader]

Or, a good mobo for 1 7990 and a couple of 280s? Will these play nice together in the same system?

I'll most likely go with 1 7990 and 2 x 280s. Any tips would be appreciated.