Patent ID: 6952784

Claim:
For use in a network interface controller, a power source and power management signaling control system comprising: a voltage regulator; a first connection coupled to the voltage regulator for connection to a network-initiated power management recovery signal and a power management recovery bus signal; a second connection coupled to the voltage regulator for selective connection to a motherboard header; and an inverter capable of gating auxiliary power for a network interface card to main power for the network interface card when a bus power signal is asserted and disconnecting the auxiliary power from the main power when the bus power signal is not asserted; wherein the control system is operable to provide power to the network interface card and power management signals, if necessary, within each of: a system not supporting network-initiated power management recovery, a system supporting network-initiated power management recovery through the header, and a system supporting network-initiated power management recovery through the power management recovery bus signal.