I'm looking at this Motherboard: GIGABYTE GA-990FXA-UD7 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard and it has 4 PCIe express slots. However, the GPU's that I want are dual slot (Sapphire Radeon HD 7970 OC 3GB DDR5 HDMI/DVI-I/Dual Mini DP PCI-Express Graphics Card 11197-01-40G) and there are 4 of them. So how can I possibly mount this properly? I've considered open air cases, large cases, etc and I'm stumped.
If I get flex cables and risers, then the motherboards just hang out in space. Finally, will the motherboard be able to support 4 GPU's?
I don't want to use SLI or CrossFire. Just 4 independent GPU's recognized by the OS and the MOBO. I'm not using them for gaming. I'm using them for Bicoin mining =)