5.3 random reboot problems

[Trevor Sullivan]

Hi I'm having the same problem as the person in the following post:
http://lists.freebsd.org/pipermail/freebsd-questions/2005-January/072548.html

My problem is with a Compaq Proliant DL380, and a fresh (standard) 
installation of FreeBSD 5.3. I've had several quirks on it that I 
haven't really understood, but after doing some research it seems like 
the older Proliant servers had some hardware compatibility issues with 
the FreeBSD 5 branch. My server is randomly rebooting when I try to do 
almost anything on it (I was trying to create a custom kernel 
post-install) and even just modifying a configuration file caused it to 
reboot. It's getting really irritating, and it had no problems with 
several different linux installations. I don't want to go back to 
FreeBSD 4, but if I must....thanks for any help, any ideas?

-Trevor