3 ASUS Matrix GTX580's will not fit on the Rampage 4 motherboard due to them requiring 3 slots each. The spacing on the motherboard is only two per slot.
It's true you can only use two 590's in sli the other could be used for physics. I on the other hand I would have put a GTX 580 for the third card, that way it could be used for GPU acceleration such as Adobe Mercury Playback Engine.
9.Cooling: CORSAIR H80 (CWCH80) High Performance Liquid CPU Cooler (1) $93.99 {Thermal compound pre-applied}
9b.Fan adapter: Bitspower Low Profile 140mm To 120mm Fan Adapter - Clear (BP-FA140120-CL)$6.99
{".. switch from 140mm to 120mm or vice versa! ... 14mm depth ...comes with mounting screws in both closed and open chassis lengths." This will allow for the CPU cooler radiator and fans to be mounted at the 140 mm fan opening. Normally the CPU cooler has matched fans on both sides of the radiator. This adapter might allow the option of using the 140mm LED fan that comes with the case on one side of the radiator, but mismatched air flow might set it up for turbulence and noise.}
Total estimate: [strike]$4975.83[/strike] with a margin of $24.17 (after striking out the extra SLI bridge).
That was still too close for comfort, especially if, perchance, the combo discount were to be discontinued. I'm striking out the third SSD and second drive bay adapter to allow for more budget margin.
Final Total estimate: $4850.85 with a margin of $149.15.
I started from my round 2 build.
Considerations:
CPU: The 3930X costs a lot more for the little bit more speed, so I chose the 3930K.
Motherboard: ASUS Rampage IV required. The feature set differs from the round 2 motherboard... SSD+HDD caching on the P79 Deluxe is not indicated for the Rampage IV. Neither is SSD in RAID0 indicated, so RAID0 may require an add-in card. The Rampage IV features overclocking and temperature detection. Temperatures indicated on the webpage include -195°C and 105°C!
RAM: The motherboard supports DDR3 2400 when overclocked. I didn't see a 2400 32GB quad channel kit when I searched at Newegg, and it would cost a lot more too. I did not see mention of this motherboard supporting a persistent RAM disk as the X79 Deluxe has, but even a volatile RAM disk may be useful, if possible.
SSDs & HDDs: I still want a lot of storage, but if the SSD+HDD caching is not available on this motherboard board then a third SSD might not be as helpful here as it was on the P79 Deluxe. The third SSD has been struck out to keep a good budget margin. Without RAID, the SSDs will operate at their normal 6 Gb/s SATA III rate.
GPUs: A long while back a little video card fan became noisy on a Radeon 9100 (I think) and I had to replace it. When I learned that the Radeon 6990 has noise issues, I aimed for the quieter Nvidia GPUs in this build. The audio test videos in the GTX 590 vs. (noisy) Radeon 6990 article were the clinchers. It's sad to potentially lose six-monitor Radeon capability, but this NVida setup allows at least three displays, and the 1920x1080 HDTV resolution should be relatively common.
I was wondering about the Tesla and saw the Quadro, but those are for workstations. Would there be a reason to build a machine with both discrete and floating point GPUs, maybe to render an object using floating point and then display it with discrete processors?
Case: I saw there are certain cases that are SLI-certified, so I looked at those first. I'd like to choose one that will work with the H80 cooler or the H100 cooler--incorporating the prize now would save the effort later--if one wins--I suppose we all should have improved a lot and should become able to put together a new prize build easily. 😉 )
Power Supply: Here I simply started with the higher-powered SLI-certified recommendations and found a combo.
This is the ultimate build. Quite a large chunk is spent towards the water cooling system, however, most of the parts can be reused if the user may ever want to upgrade the system. I'll be able to build this beast if that 3960X ends up at my front door... 😀
Good luck to everyone!
This is what I got after spending a few hours browsing Newegg and Tigerdirect. Some dual SLI going on. It should be more than adequate for most needs. Maxed out the ram right at the start. An SSD plus two 3TB HDD in RAID 1 is a must have for me to preserve my precious memories aka my collection photos and videos. The case has has 4 USB 3.0. It doesn't match what's available in front panel exactly but nothing does. It's close enough. Platinum rated Power Supply for coolness. Blue-Ray Burner for HD movies. It was cheaper without the lighscribe feature.
I wish there was a standard for front panels such that the what's available connectors on the motherboard matches what ports included on the Case. In this example I have the motherboard has 4 USB 3.0 and 4 USB 2.0 front panel connectors, while the case has 4 USB 3.0, 2 USB 2.0, Audio, IEEE 1394, and e-SATA. Of course firewire and e-SATA would be a dead port while the 2 USB 2.0 won't have anything to connect to. I want to call this standard ATX-FP.