Apple has posted a Knowledge Base document that says the Power Mac G5 is not supported for use with any version of Mac OS X Server 10.2, or any earlier version of Mac OS X Server. “Mac OS X Server 10.3 will be supported on Power Mac G5 computers,” notes the document. “Power Mac G5 computers require Mac OS X 10.2.7 (G5), which is made specifically for this computer. Mac OS X 10.2.7 (G5) cannot be installed on other computers, and other versions of Mac OS X 10.2 (both server and client) cannot be installed on the Power Mac G5 computer.”