Abstract: The disclosure provides a rack, including nodes and power supplies, and a power controlling method thereof, including the following steps. Power information of each node is collected to calculate a total power consumption value of the nodes. A power supply enabling demand is calculated according to the total power consumption value and a maximum power supply value of the power supply. State information of each of the power supplies is read to obtain a first sequence of the power supplies. According to the power supply enabling demand and the first sequence, two of the power supplies are enabled and set as a master power supply and a secondary power supply, and the rest of the power supplies are disabled. While the master power supply provides a work voltage to the nodes, the secondary power supply does not supply the work voltage to the nodes.

Abstract: A power control method of a rack having a plurality of nodes includes the following steps. Power information of each node is received. A total power consumption value of the plurality of nodes according to the power information is calculated. A number of power supply units to be turned on according to the total power consumption value and a maximum supplied power value of a single power supply unit is calculated. At least one primary power supply unit and at least one secondary power supply unit in pairs according to the number of power supply units to be turned on is started. The at least one primary power supply unit provides a duty voltage to the plurality of nodes, and the at least one secondary power supply unit does not provide the duty voltage to the plurality of nodes.

Abstract: A rack server includes multiple power supply backplanes and multiple Fan Controller Boards (FCBs). The power supply backplanes each have a connection unit. The connection unit has multiple connection terminals. One of the connection terminals is coupled to a ground terminal. Positions of the connection terminals of the connection units coupled to the ground terminal are different from each other. The FCBs are coupled to one of the corresponding power supply backplanes respectively. The FCBs each include an addressing circuit and a microcontroller. The addressing circuit is coupled to the connection terminals of the corresponding connection unit, and is used to generate an address signal by detecting and according to a coupling relationship between the connection terminals and the ground terminal. The microcontroller is coupled to the addressing circuit, and is used to receive the address signal, so as to generate corresponding address information.

Abstract: The disclosure provides a rack, including nodes and power supplies, and a power controlling method thereof, including the following steps. Power information of each node is collected to calculate a total power consumption value of the nodes. A power supply enabling demand is calculated according to the total power consumption value and a maximum power supply value of the power supply. State information of each of the power supplies is read to obtain a first sequence of the power supplies. According to the power supply enabling demand and the first sequence, two of the power supplies are enabled and set as a master power supply and a secondary power supply, and the rest of the power supplies are disabled. While the master power supply provides a work voltage to the nodes, the secondary power supply does not supply the work voltage to the nodes.

Abstract: A fan control device is used for controlling at least one fan. The fan control device comprises a signal modulation unit and a shield unit. The signal modulation unit is used for providing a modulation signal and a duty status signal. The shield unit is coupled to the signal modulation unit and the at least one fan for receiving a standby voltage, the duty status signal, and the modulation signal, as well as for shielding the modulation signal or transmitting the modulation signal to the at least one fan according to the standby voltage and the duty status signal.

Abstract: A power control method for a rack having a plurality of nodes is used for turning on a plurality of main power supplies and standby power supplies in pairs according to an actual number of power supply needed to be turned on. A total power consumption value for the nodes is calculated according to power information of the nodes. A number of power supply needed to be turned on is calculated according to the total power consumption value and a maximum power value for one power supply to obtain the actual number and is smaller than the actual number. When the main power supplies supply operating voltages to the nodes, the standby power supplies do not supply the operating voltages to the nodes. An input source received by the main power supplies is different from that received by the standby power supplies.

Abstract: A power control method of a rack having a plurality of nodes includes the following steps. Power information of each node is received. a total power consumption value of the plurality of nodes according to the power information is calculated. A number of power supply units to be turned on according to the total power consumption value and a maximum supplied power value of a single power supply unit is calculated. At least one primary power supply unit and at least one secondary power supply unit in pairs according to the number of power supply units to be turned on is started. The at least one primary power supply unit provides a duty voltage to the plurality of nodes, and the at least one secondary power supply unit does not provide the duty voltage to the plurality of nodes.

Abstract: A system circuit board and a computer are presented. The system circuit board includes a processor and a hard disk (HD) indicator circuit. The HD indicator circuit includes a first switch, a first light-emitting diode, a second switch, a second light-emitting diode, an inverting circuit, and a third light-emitting diode. The first switch is electrically connected between a first pin of the processor and the first light-emitting diode. The second switch is electrically connected between a second pin of the processor and the second light-emitting diode. The inverting circuit is connected between the second pin and the third light-emitting diode. Therefore, the second light-emitting diode and the third light-emitting diode share the second pin, so that the processor can execute more functions, and the number of resistors required by the HD indicator circuit is reduced.

Abstract: A rack server includes multiple power supply backplanes and multiple Fan Controller Boards (FCBs). The power supply backplanes each have a connection unit. The connection unit has multiple connection terminals. One of the connection terminals is coupled to a ground terminal. Positions of the connection terminals of the connection units coupled to the ground terminal are different from each other. The FCBs are coupled to one of the corresponding power supply backplanes respectively. The FCBs each include an addressing circuit and a microcontroller. The addressing circuit is coupled to the connection terminals of the corresponding connection unit, and is used to generate an address signal by detecting and according to a coupling relationship between the connection terminals and the ground terminal. The microcontroller is coupled to the addressing circuit, and is used to receive the address signal, so as to generate corresponding address information.