- Nov 24, 2010
- 15
- 0
- 18,510
As the title states, I am trying to determine the real deal when it comes to the amount of bandwidth needed to run my system at top performance. I am currently building a ws system with 2x Nvidia Teslas, 1x Quadro GPU, and would like to run my LSI x8 SAS/SATA 6gps RAID card as well. The problem I seem to keep returning to is what I need in terms of PCI Express support. Everything I am running is PCI Express 2.0. I have noticed that unless you look at an Intel 2011, or Dual Xeon/Opteron setup, there are really no other options that support a full speed setup. So I guess the question I have is "what do I need in a mobo"?
I have looked at the Nvidia Maximus setups, and most seem to follow the x16,x8,x8 platform. I have read many times that these cards are not capable of full bus saturation, and that even the Tesla server setups seem to run x16,x8,x8. When I work the RAID card into the mix I then need an additional slot for the RAID card which is rated for x8. If i use a board that is x8,x8,x8,x4 will that be sufficient bandwidth for the setup? If so should I put the RAID card in one of the x8 slots, and one of the GPU or compute units in the x4?
The boards I am currently looking at are the ASUS Sabertooth, ASUS Maximus, and the ASUS Crosshair. I am also looking at a dual G34 board from ASUS. the other question is what CPU would be the most cost effective in terms of performance/cost ratio. I have no problem with AMD or Intel. I also have a spare i5 quad core SB that I could make use of, but that is only an option if I can get away with lower PCI Express bandwidth. I don't want to cheap out too much on the board, after laying out the type of cash i did on the GPU and Compute units. However I don't need to blow the budget.
Does anyone have any advice re what would be the appropriate setup for the cards? i would also appreciate any recommendations regarding motherboards as well.
I have looked at the Nvidia Maximus setups, and most seem to follow the x16,x8,x8 platform. I have read many times that these cards are not capable of full bus saturation, and that even the Tesla server setups seem to run x16,x8,x8. When I work the RAID card into the mix I then need an additional slot for the RAID card which is rated for x8. If i use a board that is x8,x8,x8,x4 will that be sufficient bandwidth for the setup? If so should I put the RAID card in one of the x8 slots, and one of the GPU or compute units in the x4?
The boards I am currently looking at are the ASUS Sabertooth, ASUS Maximus, and the ASUS Crosshair. I am also looking at a dual G34 board from ASUS. the other question is what CPU would be the most cost effective in terms of performance/cost ratio. I have no problem with AMD or Intel. I also have a spare i5 quad core SB that I could make use of, but that is only an option if I can get away with lower PCI Express bandwidth. I don't want to cheap out too much on the board, after laying out the type of cash i did on the GPU and Compute units. However I don't need to blow the budget.
Does anyone have any advice re what would be the appropriate setup for the cards? i would also appreciate any recommendations regarding motherboards as well.
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