Proliant 5000

[Brad]

Hi, I have recently acquired a Proliant 800 and a Proliant 5000 server.
The 800 installed quite cleanly and is currently running FreeBSD 5.3 The
800 is a dual processor machine. When I try to install FreeBSD 5.3 on
the 5000 (it's a quad processor machine ) it panic's saying, 

panic: pmtimer_indentify

Has anyone seen this
before. As near as I can tell it involves the power management of the
computer. Only there isn't any in the bios. Doing a verbose logging on
the system I noticed that it has just finished scanning the ISA bus and
found nothing. Then it panic's. I would appreciate any thoughts that the
community might have.