Extended system, server host and operation method thereof

A server host, comprising:

• at least one server, comprising:
• a first PCIE connector;
• a power supply device, connected to the first PCIE connector, and configured to provide a standby voltage and a working voltage;
• and
• a processing device, connected to the first PCIE connector and the power supply device, and configured to control the power supply device to provide the standby voltage or the working voltage according to a control signal or a wakeup signal;
• and
• an extended system, comprising:
• at least one second PCIE connector, suitable to connect to the first PCIE connector of the at least one server device;
• and
• a control device, connected to the at least one second PCIE connector;
• wherein the control device is configured to:
• detect whether a working voltage generated by the at least one server device is received,
• in response to the working voltage being received, turn on the extended system and ignore a power control signal generated by the extended system according to the working voltage generated by the power supply device, and
• in response to the working voltage not being received, generate the wakeup signal according to the power control signal generated by the extended system, and transmit the wakeup signal to the processing device, so that the at least one server device is turned on and the power supply device generates the working voltage.

An operation method of a server host, comprising:

• detecting, by a control device, whether at least one working voltage generated by at least one server device is received;
• turning on an extended system and ignoring a power control signal from the extended system, by the control device, in response to the at least one working voltage being received;
• generating, by the control device, at least one wakeup signal according to the power control signal generated by the extended system in response to the at least one working voltage not being received;
• and
• transmitting the at least one wakeup signal to the at least one server device, so that the at least one server device is turned on and generates the at least one working voltage;
• wherein the at least one server device and the extended system are connected through a PCIE connector.