IBM said Tuesday it will add two blades and three rack servers to its family of computers powered by processors from Advanced Micro Devices.New to the lineup are the BladeCenter LS21 and LS41 blade servers and the System x3455, System x3655 and System x3755.IBM has carried systems based on chips from Advanced Micro Devices (AMD) since 2003, but competitors like Sun Microsystems and Hewlett-Packard have sold wider ranges of x86 servers."HP has had a broader product line, but after today there are no excuses," said Jeff Benck, a spokesman for IBM.The new servers will use AMD\u2019s "Rev F" Opteron processor, giving them an advantage over products like Sun\u2019s new SunFire line, which uses the older Rev E design, Benck said.The Rev F will bring improved virtualization, an upgrade from DDR1 to DDR2 memory, and quad-core capability for future expansion, said AMD spokesman Phil Hughes. AMD plans to formally unveil the Rev F chip on Aug. 15, but has already begun shipping it to vendors.The announcement was a big win for AMD, which has steadily gained market share with its Opteron design, but has seen rival Intel challenge that momentum with the recent launch of new server chips.IBM also hopes to sell the servers based on their power efficiency. The company predicts that by 2007, data centers will be forced to spend more money on power and cooling than on new server acquisitions.The new family uses a collection of hardware and software technologies called Cool Blue, capable of running the servers with 40 percent better performance per watt than competing blade chassis, said Susan Whitney, general manager of IBM\u2019s System x server group.The system reduces server heat emissions by chilling discharged air with a water-cooled door that covers the back of each rack. That helps the new servers take full advantage of the new chips.The LS21 is a two-chip blade server optimized for high-performance computing such as scientific research and financial services, while the LS41 can scale up to four chips for larger enterprise applications such as data warehouses and ERP software.The System x computers are designed for applications ranging from database and Linux clusters for the model 3455, video on demand and IP television for the model 3655, and large enterprise tasks like weather simulation for the 3755.IBM will announce product pricing and availability during the third quarter, once AMD launches its Rev F chip, formally called the Next-Generation Opteron.-Ben Ames, IDG News Service (Boston Bureau)Related Link:\n\nIBM to Expand Line of AMD-Based ServersCheck out our CIO News Alerts and Tech Informer pages for more updated news coverage.