The high-end 32-way Power 4 servers, called the eServer iSeries 870 and 825, are both capable of running multiple operating systems including the Linux, OS/400, Windows and Unix.
IBM also unveiled the iSeries 810 and 800 models aimed at small and medium-sized businesses that support up to two processors and will be priced at just under $10,000 (£6,207) in their entry-level configurations.
The On/Off Capacity Upgrade On Demand feature on the server enables users to turn processors on and off as situational computing demands dictate and pay only for what they use. Users can choose from Temporary or Permanent Capacity Upgrade On Demand options.
IBM also rolled out an improved version of its WebSphere Application Server Express for iSeries, which is designed to help businesses build and manage Web sites easily. The software now supports all members of the iSeries family and among its features WebSphere Express contains autonomic, self-configuring installation wizards that will be available only on the iSeries.
The company hoped the latest customised packaging and pricing options would make clearer the configuration choices that users have.
The Standard Edition of the servers supports a wider range of e-business applications and includes the ability to run multiple operating systems, the Capacity Upgrade On Demand capability, and dynamic logical partitioning.
The Enterprise Edition contains the features of the Standard Edition along with bundled versions of DB2, WebSphere, Lotus, and Tivoli server software. The Enterprise package includes free processor activation for Linux on the iSeries 870 and iSeries 890, and an integrated IBM eServer xSeries for Windows integration.
All of the IBM iSeries models will be available next month.