IBM Rolls Out New Linux Server Using Power5 Chip  SAN FRANCISCO (Reuters) - International Business Machines  Corp &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=IBM.N qtype=sym infotype=info qcat=news"&gt;IBM.N&lt;/A&gt; on Sunday announced a new computer server using  its Power5 microprocessor tuned for the popular Linux operating  system, as the No. 1 computer maker aims to broaden the  adoption of Linux in broader corporate computing markets.