How to fix??? boot bug??

Thu Jul 1 07:42:16 PDT 2004

Hi all.
I have one question. 
Just reinstalled FreeBSD 4.9 on my new hardware. I had 845 - 1700, now 
I have 865 - P4 2600, same hard.
But now I cannot load FreeBSD - ??? Why???
It writes - BTX halted - ......... many registers...

PS
I have just installed 4.6 on this machine - all is beautiful, but I 
have not my hardware support 
Maby it's a hardware problem??
Can you help me?? sorry for my english