PCI expansion card working?

Hi! all,


I have a IBM 7248 43P/133 machine.  It working on NetBSD-4.0.
And I have a lot of cards of PCI (fwohci, [eou]hci, ex, vr, aha).

I wanted to install those PCI cards.  However, the PCI card seems not to
be able to work correctly as for me. 
For instance, when booting, interrupt is happen by {fwo,e,o,u}hci, ahc(4).
And, PCI from now on doesn't respond.  For instance, it is siop(4).  And
I look strange the memory access for vr(4).  OS hangs up simultaneously
for ex(4) ups. 

Can I use the PCI card?

Thanks
--
kiyohara