1) the maximus v extreme is for overclocking. something that should not be done if you are doing compute work.
2)you have windows 7 premium which does not support more than 16gb of ram
3)you dont need a large SSD if you are using this purely for compute
4) with 4 cards, there will be a CPU bottleneck. but it depends if you are acutally using the CPU for part of the compute process
Thank you. The objective of the project is to optimize the PC platform specifically for the BOINC client. I appreciate the detailed parts list and we will undoubtedly use your advice and/or recommendations in one of the builds.
On November 18, 2010, the PCI Special Interest Group officially published the finalized PCI Express 3.0 specification to its members to build devices based on this new version of PCI Express.
AMD latest flagship graphic card, the Radeon HD 7970, launched on January 9, 2012, is the world's first PCIe 3.0 graphic card. Initial reviews suggest that the new interface would not improve graphic performance compared to earlier PCIe 2.0, which, at the time of writing, is still under-utilized. However, the new interface would prove advantageous when used for general purpose computing with technologies like OpenCL, CUDA and C++ AMP.
And although Ivy Bridge carries over Sandy Bridge’s 16 lanes of on-die PCI Express connectivity, we now have official PCIe 3.0 support for cards like AMD’s Radeon HD 7000s and Nvidia’s GeForce GTX 680.
This gives the motherboard, as a whole, 72 PCIe 3.0 lanes to play with. The 64 lanes that come directly from the PLX chips go to the PCIe slots, to provide a peak x16/x16/x16/x16 mode with 4 GPU devices. However, the focus of this board is not in GPUs for gaming, but workstations with GPU accelerated features.
User motherboard reviews are often problematic. Some can be thrown out as incompetent. Some will be blaming their MB because it is the least understood by them (or so they believe, they probably understand their PSUs less) and so must, in their minds, be the source of the problems.
Then there are people like the first 4 star reviewer. He claims to be a tech expert and says the board has a "ton of PCI-X slots".
I wasn't really recommending the board anyway. Keep in mind that those extra PCI-E lanes deal more with SLI capability. For your needs any x79 board with the right number and spacing of PCI-E slots should work... The CPU will supply 40 lanes, and that's the important part. 32 lanes for the 4 cards and the rest to handle the SATA 6GB/s.
x79 is only really useful if you use the CPU as part of the compute process. if the graphics cards are the sole components that compute, it isnt really necessary to get x79. the 4 way boards have a plx chip onboard for lane switching
your components in your wishlist can still be made cheaper by shopping elsewhere. it will save you more than a 1000 dollars easily. especially the maximus v extreme (a overclocking and gaming board, not work board)