Dream Machine 2010 was an exercise in PC building, overclocking, cooling—and patience
So, the desktop PC will become nothing more than a truck? Well, here’s your Mack truck, Mr. Jobs, filling your rear-view mirror on Interstate 80 as you try to get that tablet-sized, Flash-less-powered toy out of the fast lane. Oops, sorry about running you over.
Our take? If the future of the desktop PC is as a truck, it might as well be one hell of a fast and powerful truck. In building Dream Machine 2010, we embraced the notion of raw, wanton power. The result is a power rig capable of hauling a heavily threaded load uphill in top gear while other single- and dual-processor machines are barely chugging along in the slow lane with their hazard lights on.

The Power Cube: Three turned out to be the magic number for this year's Dream: three GPUs, three radiators, three grills--even the 12 cores (and 24 threads) are divisible by three.
At the onset of our Dream Machine project, we were concerned. 24 threads. Three videocards. 24GB of RAM. 4.4 terabytes of storage. Could we get it all to work together? And could we overclock the CPU and GPU enough to qualify as the fastest PC in the world? It took some wrangling, but we’re happy to reply with an emphatic YES. Even better, all this power has some astounding real-world benefits in multithreaded applications.
The simple paint job and tough-looking grills and fans on this year’s system complete the theme. This is not a system for the faint of heart. Read and enjoy.
Power Exposed
Want to know what's inside Dream Machine 2010? Here's the full monty

(click to enlarge)
Motherboard: EVGA Classified SR-2
This is the biggest motherboard we’ve ever seen

No one doubts that EVGA’s new Classified SR-2 is the mother of all motherboards. Sure, other boards will run dual Xeon processors as well as 48GB of RAM, but in terms of physical size and configuration, there is literally nothing on Earth like the 13.6x15 inch SR-2. In sheer size, it dwarfs even the massive Intel Skulltrail motherboard that served as the foundation for Dream Machine 2008. The girth of the board comes from EVGA’s proprietary HPTX formfactor, which can accommodate as many as nine expansion slots. However, given the SR-2’s 12 DIMM slots and two proc sockets (not to mention the nForce 200 bridge chips), this mobo has only seven slots. Fortunately, they’re all full-length x16 slots, with four running x16 data rates. The rest are x8 PCI-E 2.0. The board can accommodate an insane four double-wide graphics cards and even features USB 3.0 and SATA6 ports to boot. In every way, the Classified SR-2 embodies this year’s theme of wanton power.
Graphics: EVGA GeForce GTX 480 SuperClocked
Water-cooling = overclocked tri-SLI


When we considered our graphics options, we had two configurations rattling around in our heads. Ultimately, EVGA’s GeForce GTX 480 SuperClocked cards won the honor. Sure, the Radeon HD 5970 is a hottie, but we’d be restricted to two cards in CrossFire X mode, which just doesn’t have the same panache as a tri-SLI GTX 480 setup. We briefly considered going with an obnoxious-sounding four GTX 480 cards, but nixed it. While decadent, we weren’t sure anything would scale to four GPUs. And it’s not like the tri-SLI cards were in danger of being overwhelmed. Once water-cooled and heavily overclocked to 910MHz (30 percent over a standard 480 card), the tri-SLI GTX 480 cards didn’t even creak under load. In the Unigine Heaven benchmark with everything maxed out, the EVGA GeForce GTX 480 cards belted out nearly 60fps. On our zero-point machine with a single Radeon HD 5970, we saw this same test stutter along at 3fps.
CPUs: Dual 3.3GHz Xeon X5680s Overclocked to 4GHz
Why Xeons? They give us 12 cores—and 24 threads

What’s the only thing better than a hexa-core Intel 3.3GHz Core i7-980X? Two hexa-cores. Sure, Intel’s 3.3GHz X5680 is technically a Xeon, but hardware geeks know that it’s really the multiprocessor version of the Core i7-980X. If you’re wondering why we didn’t just use two Core i7-980X chips—both versions are LGA1366 processors, after all—it’s because that’s impossible. The Xeon X5680 features two Quick Path Interfaces—one to communicate with the chipset and the other to talk to an additional CPU. A Core i7-980X intended for desktop use has the second QPI disabled at the factory to prevent its use in a multiprocessor setup. So, what do two ultra-pricey Xeon X5680 procs give us? An insane number of threads: 12 physical cores and an additional 12 virtual cores for a total of 24 threads. Besides giving us lightning-fast performance with highly threaded applications (think 42 to 79 percent faster than the fastest PCs today), this also gives us the ability to mega-multitask the hell out of anything.
Dual Processors Make Overclocking Twice as Challenging
It doesn’t really take a genius to overclock a Gulftown to reasonable levels. You crack open the BIOS, start cranking up the base clock (or bclock), and maybe add a little voltage to the CPU and the chipset. It’s not quite as easy with a dual-processor setup, however. In fact, it’s a bit daunting the first time you open up the BIOS on EVGA’s Classified SR-2 board. Umm, IOH QPI Signal… set that to, um, what again? Right.
Don’t take this as a knock against the SR-2 board. In fact, we’re tickled pink that it’s so overclocker-friendly, but the task still presents a challenge. Our goal was to reach a judicious clock speed—nothing too greedy. With the water-cooling in place, we were able to hit a stable 4GHz. We did this by disabling vdroop on both chips and increasing the core voltage to 1.35 volts, and by moving the CPU VTT up to 1.35. We actually underclocked the RAM to 1,066 and gave the chipset, or IOH, additional voltage of 1.45 volts. Digging around EVGA’s forum, we found that the company’s overclocking evangelist Shamino recommends an IOH QPI signal of -70 and -16. Our overclock was a simple bclock boost. By bumping up from the stock 133MHz to 160MHz, we achieved a very even and very stable 4GHz clock on both X5680 chips. With another 48 hours to futz around, we’re sure we could have reached the low- to mid-4GHz range, but deadlines are deadlines. Still, 4GHz on 12 cores of computing is nothing to scoff at.
We’d be remiss if we didn’t mention our GPU overclocking. Not everyone knows this, but MSI’s Afterburner utility now supports the GTX 480 and even lets you dial up the voltage. With our triple-radiator water-cooling system taming these nuclear graphics cards, we used Afterburner to speed up the cores of the three GPUs to an amazing 910MHz. We also increased GPU memory to 2,200MHz. This gave DM2010 a heavy advantage in GPU-bound graphics tests such as Heaven 2.0 and STALKER: CoP. —Gordon Mah Ung
Soundcard: Auzentech X-Fi Forte 7.1
This fully loaded card takes PC audio to places previously unheard of
Onboard audio has come a long way, but using the world’s best components to build a Dream Machine without also including a kick-ass soundcard is anathema to us. We immediately reached for Auzentech’s X-Fi Forte 7.1 this time around.

As much as we dig Creative’s X-Fi cards, Auzentech’s engineers pick up where Creative’s leave off. They use Creative’s awesome 20K2 PCI Express audio processor as a foundation, and then surround it with high-end (and upgradeable) op/amps; an AKM AK4396VF DAC with 24-bit resolution, sampling rates up to 192kHz, and a signal-to-noise ratio of 120dB; an integrated headphone amp; and a combo optical/coaxial stereo digital-audio output.
Using the X-Fi chipset means the card can deliver Creative’s entire suite of audio-processing tools, including the 24-bit Crystalizer, which we’ve found enhances even tracks we’ve ripped and losslessly encoded using FLAC. And for those games that take advantage of it, there’s support for Creative’s EAX 5.0.
Speakers: Bowers and Wilkins MM-1 Speakers and PV1 Subwoofer
Awesome speakers + ingenuity = dreamy audio
While demoing the incredible MM-1 computer speakers, a B&W rep told us how its engineers, during early product development, had used rejected prototypes in surround-sound configurations for movies and gaming. We immediately asked how we could do the same thing for the Dream Machine.

We wound up using three stereo pairs (front L/R, surround L/R, and one pair for the center) for our 7.1 configuration. The MM-1s are full-range speakers, but we threw B&W’s spectacular PV1 subwoofer into the mix for gut-punching bass.
Our configuration required a bit of creative cabling: The X-Fi Forte uses analog break-out cables, so we used the MM-1s’ analog aux inputs instead of their USB ports. And since the card outputs the center channel and low-frequency effects on the same cable, we used a cable with a 1/8-inch female jack on one end and two RCA male plugs at the other end. We connected the RCA plug carrying the LFE to the sub and the other to the center channel via an adapter.
Displays: Three HP ZR30w 30-inch LCDs
Screen real estate as far as the eye can see
We toyed with the idea of using a trio of Asus’s new VG236 3D displays with this year’s Dream Machine (three in 3D, get it?), but then HP dangled three of its brand-new ZR30w 30-inch LCDs in front of our eyes. The three 23-inch VG236 displays suddenly looked dwarfish sitting next to our massive aluminum cube computer.

The ZR30w isn’t just big, it’s an S-IPS panel (yay!) that uses 10 bits per pixel to produce 1.07 billion displayable colors. The ZR30w covers 100 percent of the sRGB color gamut and 99 percent of the Adobe RGB color gamut. As is common for displays this size, the ZR30w’s native resolution is 2560x1600 (a 16:10 aspect ratio). This monitor is obviously aimed at the pros, but we found its 7ms gray-to-gray refresh rate plenty fast enough to play Just Cause 2 and Bad Company 2 at a resolution of 7680x1600. Ooh-rah!
Next page: Dream Machine Parts continued >>