No RISC No Fun
OpenPA is a resource for HP PA-RISC and IA64 based computers with in-depth technical descriptions and background information. This site is independent of and does not represent The Hewlett Packard Company in any way.
Hardware details of PA-RISC machines can be found in the hardware section, the computers section contains a listing of the various computers systems based on PA-RISC and IA64 processors. The systems pages can be directly accessed via shortcuts, as explained in the Backend/Shortcuts (e. g. http://www.openpa.net/model).
Supported PA-RISC operating systems are detailed in the software section.
HP Itanium (IA64) servers and workstations added
15 April 2008
Several pages for systems with the HP PA-RISC successor — the HP/Intel Itanium (IA64) architecture — have been added. These include all three Itanium workstations produced by HP, the HP i2000, HP zx2000 and HP zx6000. Also covered are a range of the Integrity rx rack-mount servers: HP rx1600 and rx1620, HP rx2600 and rx2620, HP rx4610, HP rx4640 and HP rx5670. Descriptions of the remaining rx Integrity servers will be added soon.
Much improved Other PA-RISC Operating Systems page
31 March 2008
The page detailing the various research and development projects of operating
system ports to the PA-RISC platform has been reworked and filled with
much more content.
The Mach 4/Lites entry (The Utah PA-RISC Code Snapshot
)
has been extended with content from the original project page at the
University if Utah; the HPBSD and Chorus
entries have been corrected and reworked; and new sections on various other porting efforts
from the early 1990s have been added —
HP Tut, HP OSF/1, Mach 3/UX
and MK-PA (OSF Mach 3/OSF/1).
HP N4000 (rp7400) servers page
12 March 2008
The rp7400 were the original version of the N4000 line of servers — the newer rp7405 and rp7410 servers were also labeled as N4000 and feature a similar set of I/O options and expandability in basically the same chassis. However the original N4000, the rp7400 described here, is based around a different system architecture than their sucessors — the Stretch chipset, also used in L1500 and L3000 (rp5430/rp5470) servers.
Cell (Superdome) and Stretch chipset sections added
12 March 2008
The newer PA-RISC based servers, including the rp5430/rp5450 (L1500/L3000), rp7400 (N4000)
and rp7405/rp7410 (N4000), are based around rather complicated chipset setups — the
rp7405/rp7410 N4000s are build around the cell-based Core Electronics Complex
(CEC)
taken from the Superdome supercomputers. The other two smaller systems are centered around
a quasi-IA64 system architecture — Stretch
which describes a chipset build
around IA64/Merced system buses, to which memory, PA-RISC processors and I/O subsystems
attach via various chipset components.
Previous news entries are on the News page.
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Includes all content from the Fall 2007 online version.
For other releases refer to the Print version page.
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