Press Release

DownUnder GeoSolutions Takes On Larger, More Complex Problems with New Altix XE Solution

To Efficiently Pack More Power into Space-Limited Data Center, Company Deploys 640-Core Altix XE Cluster with Water-Cooled Doors

BRISBANE, Australia (June 27, 2007)—At Australia's DownUnder GeoSolutions (DUG), a string of recent successes has prompted the energy exploration and production services firm to retool its data center with help from SGI (NASDAQ: SGIC).

For DUG's seismic processing and imaging engineers, data volumes have been trending sharply upward. Where DUG once commonly analyzed surveys measuring 55 square kilometers (sq km), today's surveys measure 1,500 sq km. Even on these larger surveys, DUG's geophysicists are running more intensive and complex algorithms.

To drive its increasingly difficult quantitative interpretation, petrophysics, seismic time processing and depth imaging studies, DUG is deploying a 640-core, 320GB SGI® Altix® XE 1300 cluster. The system will be installed in July at DUG headquarters in Perth, Western Australia.

The new SGI cluster increases DUG's overall computational performance five-fold, allowing DUG experts to provide global energy industry clients with more accurate insights into what they can expect to find when drilling miles below the earth's surface.

"Data sets that once amounted to just 5GB are now approaching 4TB in size," said Dr. Matthew G. Lamont, managing director, DownUnder GeoSolutions. "Facing this dramatic boost in our workload, we sought out a major upgrade to our computing resources. After evaluating several competing solutions, we chose SGI."

A Cool Solution
While the Alix XE platform's leading price/performance and density were major factors in DUG's selection, another Altix advantage leapt to the company's attention: the availability of water-cooled doors. "We have a particularly space-constrained data center, so the prospect of implementing a major cluster system was pretty challenging," said Dr. Stuart Midgley, manager, Production Services, DUG. "During our evaluation process, SGI demonstrated the best water cooling solution. This was the only way we could achieve the density we needed within our server room."

Available as an option for dense clusters, the Altix XE platform's field-proven water-cooled doors dramatically reduce the ambient heat generated by the systems. As a result, even high-density clusters have a minimal effect on ambient data center temperature, which in turn significantly reduces power consumption and the need for special data center cooling equipment. More than 250 water-cooled doors have already been installed and proven reliable on existing SGI® Altix® systems worldwide.

DUG's new Altix XE 1300 cluster leverages Quad-Core Intel® Xeon® Processors to power the company's in-house, state-of-the-art applications for seismic processing, imaging and inversion. "We anticipate the Altix XE will produce five times the performance of our earlier servers, and that should translate into major productivity boosts," added Lamont. "And unlike our previous systems, Altix XE is a homogenous, fully integrated cluster that should be far easier to administer and maintain."

The SGI Altix XE server and cluster platform offers superior performance and energy efficiency at a breakthrough price point. Unlike other cluster offerings, SGI Altix XE combines the advanced Intel Xeon processor architecture delivered in a fully factory integrated cluster solution and backed by SGI's industry-leading service and support. The Altix XE platform delivers leading density without sacrificing performance or functionality.

SGI | Innovation for Results™
SGI (NASDAQ: SGIC) is a leader in high-performance computing. SGI delivers a complete range of high-performance server and storage solutions along with industry-leading professional services and support that enable its customers to overcome the challenges of complex data-intensive workflows and accelerate breakthrough discoveries, innovation and information transformation. SGI solutions help customers solve their computing challenges whether it's enhancing the quality of life through drug research, designing and manufacturing safer and more efficient cars and airplanes, studying global climate, providing technologies for homeland security and defense, or helping enterprises manage large data. With offices worldwide, the company is headquartered in Sunnyvale, Calif., and can be found on the Web at www.sgi.com.

SGI, Altix, the SGI cube and the SGI logo are registered trademarks of SGI in the United States and/or other countries worldwide. Linux is a registered trademark of Linus Torvalds in the U.S. and other countries. Intel and Intel Xeon are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. All other trademarks mentioned herein are the property of their respective owners.

This news release contains forward-looking statements regarding SGI technologies and third-party technologies that are subject to risks and uncertainties. These risks and uncertainties could cause actual results to differ materially from those described in such statements. The reader is cautioned not to rely unduly on these forward-looking statements, which are not a guarantee of future or current performance. Such risks and uncertainties include long-term program commitments, the performance of third parties, the sustained performance of current and future products, financing risks, the ability to integrate and support a complex technology solution involving multiple providers and users, and other risks detailed from time to time in the company's most recent SEC reports, including its reports on Form 10-K and Form 10-Q.