Frequently Asked Questions for FreeBSD 2.X : Hardware compatibility : Why doesn't my 3Com PCI network card work with my Micron computer?
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3.24. Why doesn't my 3Com PCI network card work with my Micron computer?

Certain Micron motherboards have a non-conforming PCI BIOS implementation that does not configure PCI devices at the addresses reported. This causes grief when FreeBSD boots.

To work around this problem, disable the "Plug and Play Operating System" flag in the BIOS.

More information on this problem is available at URL: http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html#micron

Frequently Asked Questions for FreeBSD 2.X : Hardware compatibility : Why doesn't my 3Com PCI network card work with my Micron computer?
Previous: How do I get the boot: prompt to show on the serial console?
Next: Does FreeBSD support Symmetric Multiproccessing (SMP)?