Intel PRO 1000GT quad Server Adapter unrecognized

[Hitoshi Masutani]

Hi.

I bought the Intel PRO 1000GT quad port server adapter, and
installed it into the PCI-X slot on my server.
But device autodetection could not find the device driver (em).
pciconf -lv or scanpci resulted in the following message :
"unknown device"

I try to use the command "kldload if_em",
but em driver could not be loaded.

Its kernel is not customized.
How should I do so that
the Intel 1000GT quad port server adapter is recognized on FreeBSD6.1?