This disclosure relates to a computer system having a peripheral component interconnect (PCI) and expansion bus riser card having at least one expansion bus slot and at least one PCI slot, the latter of which meets a PCI bus stub length requirement. The PCI slot is connected to the PCI bus by...http://www.google.ca/patents/US5734840?utm_source=gb-gplus-sharePatent US5734840 - PCI and expansion bus riser card
