Anybody seriously interested in this should have a look at this motherboard:



X58 SuperComputer

Slots

- 4 x PCI Express 2.0 x16 slots (blue @ x8 / x16 mode, orange @ x8 / N/A mode) (Double-wide slot spacing between each PCI-E slot)
- 3 x PCI slots
- Supports ATI™ CrossFireX™, Quad CrossFireX™
- Supports NVIDIA® Quad SLI™, 3-Way SLI™ and SLI™
- Supports NVIDIA® Tesla Personal Supercomputer with three Tesla and one Quadro graphics cards


Memory:

- Triple Channel DDR3 memory technology
- 6 x DDR3 DIMM slots
- Supports DDR3 2000(OC)/1866(OC)/1600(OC)/1333(OC)/1066 non-ECC, un-buffered memory
- Supports DDR3 ECC, un-buffered memory with Intel® Workstation 1S Xeon® processors 3500 series
- Max. capacity of system memory: 24GB
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