A method for PCI Express Power Management using a PCI PM mechanism in a computer system. An impact beam is disposed between the door inner panel and the door outer panel. The metal oxide semiconductor layer is formed on the first surface for defining a N-type drift layer of the semiconductor substrate. Dentifrice compositions comprising the abrasive system has an RDA of 150 or less and PCR’s of at least 80 and up to about 150, and an REA of less than about 30. When the sections are closed, the arms will form a hollow column in alignment with the aperture. In addition, an instruction transmission unit transmits an address-set instruction instructing the relay apparatus to search for a next-hop node in the data-communication path and store a MAC address of the next-hop node before the control-information path is established by the control-path establishment unit.