http://www.docs.hp.com/en/5990-8144/ch02s03.htmlThis HP-UX 11i v2 (B.11.23) release supports only a 64-bit version of the HP-UX kernel. It fully supports the following HP Integrity Servers, HP Workstations, and HP 9000 Servers:
PA-RISC Systems.
HP 9000 rp8400 and rp7400 series
HP 9000 rp5400 and rp4400 series
HP 9000 rp3440 and rp2400 series
HP 9000 Superdome server
64-bit A-Class, L-Class, and N-Class servers
Itanium-based Systems.
HP Integrity rx1600 server
HP Integrity cx2600 server
HP Integrity rx2600 server
HP Integrity rx4640 server
HP Integrity rx5600 series
HP Integrity rx7600 series
HP Integrity rx8600 series
HP Integrity Superdome server
HP zx2000 workstation
HP zx6000 workstation
Pete - Here's the old os/server matrix link
http://www.testdrive.hp.com/STKT/serversupport.html
"Downtime is a Crime."