HP Parisc chipset?

[Vlask]

Found with friend some boards probadly from Continuum server - info- http://www.openpa.net/systems/continuum.html . Cpus are PA-7100/7150 in pairs. But on boards are two other big chips with heatsinks, need info about them. Best will be some key if even exist to identify HP cpus or chips - every one have some marking like on these cpus is "5181-7333 rev.D" - its somewhere some info about their marking?
Some photos includes - some of them big sized like 200+kb.

Whole CPU board - 2 physical CPU's made into 1 virtual, with heatsinks still on that chipsets? - http://82.114.193.227/fotky/deskahp.jpg
Alone CPU module with cache - http://82.114.193.227/fotky/hpparisc.jpg
Unknown chip covered with heatsink from 1st photo - http://82.114.193.227/fotky/hpchipset.jpg