The Openpower foundation was formed a year ago and has something like 80 worldwide members, working on producing server technology built using IBM rather than Intel microprocessor architecture.
The group already has members including Nvidia, Tyan and Google.
Rackspace has been working behind the scenes with the group for over 18 months, but openly declared its hand yesterday. Senior director Aaron Sullivan said that Openpower has an open firmware stack, and better access to chips, memory and storage than, for example, Intel.
Other additions to the powerful consortium include Lawrence Livermore National Laboratory, the Mumbai Indian Institute of Technology, and worldwide distributor Avnet.
Openpower said its first summit will be held mid March at the San Jose Convention Center in California.