Determine the motherboard/chipset type on FreeBSD box
pciconf -lv will give a list of the PCI devices in the system. It's not a great way to read chipset information and may return very little usable information, at any rate it will be in cryptic form. The dmidecode port would be much preferred, but pciconf is part of the base OS.
dmidecode should do the trick. actually all the tricks :)