A power supply system of a server, a server, and a power supply method

Abstract

The application provides a power supply system of a server, the server and a power supply method, which comprise a power module; a baseboard management control module, which is used for generating corresponding power supply signals and power-off signals according to external power supply instructions and power-off instructions respectively; a switch module, which is electrically connected between the power module and a central processing module; the switch module is used for entering a conduction state according to the power supply signals to supply power to the central processing module; the switch module is also used for entering an off state according to the power-off signals to stop supplying power to the central processing module; and a reset module, which is electrically connected between the baseboard management control module and the central processing module, is used for resetting system setting data in the central processing module according to a reset signal of the baseboard management control module. The power supply system of the server, the server and the power supply method provided by the application solve the technical problem that the system setting data of the server cannot be reset.

Description

Technical Field

[0001] This invention relates to the field of power management, and in particular to a power supply system, server, and power supply method for a server. Background Technology

[0002] With the large-scale deployment of 5G edge computing and the high energy consumption of artificial intelligence (AI) system servers, computer servers are often located in remote areas, posing a high-cost challenge to traditional on-site maintenance methods. Currently, the auxiliary power supply of servers is directly connected to an external power source. Even if the main system power is remotely shut down, the auxiliary power supply to the critical components of the central processing module continues to provide power, keeping these critical components in a low-power operating state. This not only limits the need for in-depth operations in remote maintenance scenarios but also leads to energy waste and accelerated hardware aging. Therefore, there are areas for improvement.

[0003] With the growth of cloud computing, big data, and artificial intelligence, hyperscale data centers can manage millions of servers. Out-of-band management technology has thus become the nerve center of data centers. Among the many out-of-band management functions, power state control and hardware-level reset are the most basic, core, and powerful. However, traditional operating system-internal shutdown (ACPI S5) or even mechanical power-off cannot achieve a true "cold boot" (G3 state) and cannot remotely perform low-level operations such as clearing CMOS. Summary of the Invention

[0004] This invention provides a power supply system, a server, and a power supply method for a server, in order to solve the technical problem of being unable to reset the system settings data of a server.

[0005] This invention provides a power supply system for a server, comprising:

[0006] Power module;

[0007] The baseboard management and control module is electrically connected between the power module and the central processing module of the server, and is used to generate corresponding power supply signals and power failure signals according to external power supply commands and power failure commands respectively.

[0008] A switching module is electrically connected between the power supply module and the central processing module; the switching module is used to enter a conducting state according to the power supply signal to supply power to the central processing module; the switching module is also used to enter a cut-off state according to the power-off signal to stop supplying power to the central processing module.

[0009] A reset module is electrically connected between the substrate management and control module and the central processing module. The reset module is used to reset the system setting data in the central processing module according to the reset signal of the substrate management and control module.

[0010] In one embodiment of the present invention, the substrate management control module includes:

[0011] A baseboard management control unit is used to receive the power supply command and the power off command;

[0012] A signal output unit is used to generate a corresponding power supply signal according to the power supply command, and to generate a corresponding power off signal according to the power off command.

[0013] The first MOSFET has its gate electrically connected to the output terminal of the signal output unit, its source electrically connected to the power supply module and the switching module, and its drain grounded. The first MOSFET enters the on state when it receives the power supply signal and enters the off state when it receives the power off signal.

[0014] In one embodiment of the present invention, the substrate management control module further includes a first voltage conversion unit; the first voltage conversion unit is used to adjust the voltage of the power supply of the power module, and to supply power to the substrate management control unit through the adjusted power supply.

[0015] In one embodiment of the present invention, the substrate management control module further includes:

[0016] The first capacitor has one end electrically connected to the output terminal of the power module and the other end grounded.

[0017] The first resistor is used to electrically connect the source of the first MOSFET to the power module to receive power from the power module; the source of the first MOSFET is also electrically connected to the switching module, and the drain of the first MOSFET is grounded.

[0018] In one embodiment of the present invention, the switching module includes a second MOS transistor; the gate of the second MOS transistor is electrically connected to the source of the first MOS transistor, the source of the second MOS transistor is electrically connected to the power supply module, and the drain of the second MOS transistor is electrically connected to the central processing module.

[0019] In this configuration, the first MOSFET generates a first conduction signal after entering the conduction state, and the second MOSFET enters the conduction state upon receiving the first conduction signal.

[0020] In one embodiment of the present invention, when a reset is performed, the signal output unit outputs a low-level power-off signal to the first MOS transistor and maintains it for a preset time, the second MOS transistor enters the cut-off state, and the central processing module enters a completely power-off state.

[0021] In one embodiment of the present invention, the switching module includes:

[0022] The second voltage conversion unit is electrically connected between the drain of the second MOS transistor and the central processing module. The second voltage conversion unit is used to adjust the voltage of the power supply of the power module and supply power to the central processing module through the adjusted power supply.

[0023] The second capacitor has one end electrically connected to the drain of the second MOSFET, and the other end grounded.

[0024] In one embodiment of the present invention, the reset module includes:

[0025] The third MOS transistor has its gate electrically connected to the output terminal of the signal output unit, its source electrically connected to the substrate management and control unit, and its drain grounded.

[0026] The fourth MOS transistor has its gate electrically connected to the source of the third MOS transistor, its source electrically connected to the substrate management control unit and the central processing module, and its drain grounded.

[0027] Specifically, the third MOSFET enters the conducting state upon receiving the reset signal and generates a second conduction signal; the fourth MOSFET enters the conducting state upon receiving the second conduction signal and generates a data reset signal; the central processing module enters the reset state based on the data reset signal to reset the system setting data in the central processing module.

[0028] The present invention also provides a server, including the power supply system of the server.

[0029] The present invention also provides a power supply method for a server, the power supply method being applied to the power supply system of the server, the power supply method comprising:

[0030] The current status of the central processing module is determined. When it is in an abnormal state or undergoing firmware upgrade, the baseboard management and control module generates a corresponding power supply signal based on the external power supply command.

[0031] The switching module enters the conduction state according to the power supply signal to supply power to the central processing module;

[0032] The system determines whether the central processing module has resumed operation. When the central processing module is in an abnormal state or undergoing firmware upgrade, the baseboard management and control module generates a corresponding power-off signal based on the external power-off command.

[0033] The switching module enters the cut-off state according to the power-off signal to stop supplying power to the central processing module, puts the central processing module into a completely power-off state, and resets the system setting data in the central processing module.

[0034] The beneficial effects of this invention are as follows: It can remotely cut off the auxiliary power supply to the central processing module and simulate the G3 complete power-off state of the ACPI (Advanced Configuration and Power Interface) specification, enabling in-depth operations such as CMOS clearing, system reset, and hardware reset, thus compliantly performing remote power-off procedures. Completely cutting off the auxiliary power supply eliminates standby power consumption during shutdown, reducing energy waste and mitigating the risk of hardware aging caused by long-term low-power operation of critical components. By remotely simulating the power-off and recovery process, it replaces manual on-site maintenance, significantly reducing the operation and maintenance costs and downtime of servers in remote areas. Furthermore, this application enables efficient energy management. In data centers in remote areas, it can remotely cut off all power (including auxiliary power) to completely unused equipment, achieving true zero power consumption, and remotely waking it up when needed. This is particularly useful for AI models (such as Large Language Models (LLM) and diffusion models), where power operating costs are extremely high. The efficient energy management of this application allows for more computation to be completed with the same power consumption and heat dissipation budget, thereby driving the advancement of AI performance. Therefore, energy management is directly related to the feasibility, technological scalability, and application universality of AI. In addition, the solution proposed in this application can avoid complex timing logic problems and ensure that all operations comply with mandatory industry standards, especially reducing manual intervention and lowering maintenance costs. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0036] In the attached diagram:

[0037] Figure 1 This is a schematic diagram of the power supply system of the server in one embodiment of the present invention;

[0038] Figure 2 This is another schematic diagram of the power supply system of the server in one embodiment of the present invention;

[0039] Figure 3 This is a circuit diagram of the power supply system of the server in one embodiment of the present invention;

[0040] Figure 4 This is a flowchart of a power supply method for a server according to an embodiment of the present invention.

[0041] The reference numerals in the attached figures are as follows: 10, power supply module; 20, substrate management and control module; 30, switch module; 40, reset module; 50, central processing module; 21, first voltage conversion unit; 22, substrate management and control unit; 23, signal output unit; 31, second voltage conversion unit. Detailed Implementation

[0042] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0044] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.

[0045] Please see Figure 1 This invention provides a power supply system for a server, which can receive control commands sent by remote personnel to power, power off, or reset the central processing module 50 of the server. The control commands may include power supply commands, power off commands, and reset commands. The power supply system may include a power module 10, a baseboard management and control module 20, a switch module 30, and a reset module 40. The server of this invention can be applied to, for example, network platform servers (e.g., 5G network servers), data centers (e.g., large-scale cloud data centers), databases (e.g., financial database servers), AI computing servers (e.g., edge computing platform servers), servers for monitoring and data acquisition systems, traffic control system servers, smart grid platform servers, distributed control system (DCS) operator stations, artificial intelligence and high-performance computing (HPC) servers, big data analysis servers, network security platform servers, communication and collaboration platform servers, or other suitable types of servers.

[0046] Please see Figure 1 In some embodiments, the power supply unit (PSU) 10 can be connected to a power source (such as the mains or a battery) via an external power cord and converts the input power (such as AC or DC) into a stable power supply required by the server to power the server. The power supply unit 10 can also be used to output another 12V power supply (P12V_PSU) to power other modules inside the server.

[0047] Please see Figure 1 , Figure 2 and Figure 3 In some embodiments, the substrate management control module 20 may be electrically connected between the power supply module 10 and the central processing module 50 of the server, and is used to generate corresponding power supply signals, power-off signals, and reset signals according to external power supply commands, power-off commands, and reset commands, respectively. The substrate management control module 20 may include a first voltage conversion unit 21, a substrate management control unit 22, a signal output unit 23, a first MOSFET M1, a first resistor R1, and a first capacitor C1.

[0048] Please see Figure 3 In some embodiments, the first voltage conversion unit 21 may be, for example, a DC-DC converter, which can be used to adjust the voltage of the power supply provided by the power module 10, converting the voltage output by the power module 10 into a specific voltage required by other devices (such as the board management control unit 22, signal output unit 23, etc.). For example, the power supply provided by the power module 10 may be 12V. The first voltage conversion unit 21 receives the 12V power supply and converts it into different power supplies as needed, such as 1.5V, 1.2V, 2.5V, etc. The converted power supply can be provided to the board management control unit 22, signal output unit 23, etc., to meet the power supply requirements of these units.

[0049] Please see Figure 3In some embodiments, the baseboard management control unit 22 may be, for example, a baseboard management controller (BMC) or an embedded management controller. The baseboard management control unit 22 can be used to monitor and manage the status of hardware devices and perform remote control operations. The baseboard management control unit 22 can receive control commands sent by remote personnel through a communication module (such as a network interface, serial port, etc.) and execute corresponding operations according to the commands. Control commands may include power-on commands, power-off commands, and reset commands. A remote personnel may send a power-on command, requesting the baseboard management control unit 22 to supply power to the device. A remote personnel may send a power-off command, requesting the baseboard management control unit 22 to disconnect the power supply to the device. A remote personnel may send a reset command, requesting the baseboard management control unit 22 to reset the device.

[0050] Please see Figure 3 In some embodiments, the signal output unit 23 may be, for example, an I / O expansion chip, used to receive control signals and generate corresponding output signals. For example, the signal output unit 23 can generate corresponding power supply signals, power-off signals, and reset signals according to power supply commands, power-off commands, and reset commands. Specifically, when power needs to be supplied to the central processing module 50, the signal output unit 23 generates a power supply signal, which can be represented as an AUX_ON signal of 1. When power needs to be cut off from the central processing module 50, the signal output unit 23 generates a power-off signal, which can be represented as an AUX_ON signal of 0. When the central processing module 50 needs to be reset, the signal output unit 23 generates a reset signal, which can be represented as an RTCRSTn signal of 1. AUX_ON is a GPIO (General Purpose Input / Output) signal issued by the BMC, used to control the switching module.

[0051] Please see Figure 3In some embodiments, one end of the first capacitor C1 is electrically connected to the output terminal of the power module 10, directly receiving the power supply output by the power module 10. The other end of the first capacitor C1 is grounded (GND), forming a current loop. The first capacitor C1 can filter the power supply output by the power module 10. Through filtering, interference signals such as noise and ripple in the power supply are eliminated or reduced, ensuring the stability and purity of the power supply. Specifically, the first capacitor C1 has energy storage characteristics. When the voltage output by the power module 10 fluctuates, the first capacitor C1 can absorb or release electrical energy, thereby smoothing the voltage fluctuation. The first capacitor C1 has low impedance characteristics to high-frequency noise, and can short-circuit high-frequency noise to ground, thereby filtering out high-frequency interference in the power supply. For low-frequency ripple, the first capacitor C1 reduces the voltage fluctuation amplitude through charging and discharging, making the power supply more stable. After filtering the power supply, the filtered power supply can be provided to the second voltage conversion unit 31 and the first MOSFET M1. The size of the first capacitor C1 is not limited, for example, it can be 5~15μF.

[0052] Please see Figure 3 In some embodiments, the first MOSFET M1 is an N-MOS transistor (e.g., NX7002), which is turned on when its gate is low and turned off when its gate is high. The gate of the first MOSFET M1 can be electrically connected to the output terminal of the signal output unit 23 to receive power supply signals or power-off signals. The source of the first MOSFET M1 can be electrically connected to the power supply module 10 through the first resistor R1 to receive the filtered 12V power supply provided by the power supply module 10. The source of the first MOSFET M1 can also be electrically connected to the switching module 30. The drain of the first MOSFET M1 can be grounded (GND) as a current loop. The first resistor R1 can step down the voltage of the 12V power supply to power the first MOSFET M1. The value of the first resistor R1 is not limited, for example, it can be 5~15 KΩ.

[0053] In some embodiments, when the signal output unit 23 outputs a power supply signal (e.g., the AUX_ON signal is 1), the first MOSFET M1 enters the on state. In the on state, the source of the first MOSFET M1 can output a first conduction signal to the switching module 30. When the signal output unit 23 outputs a power-off signal (e.g., the AUX_ON signal is 0), the first MOSFET M1 enters the off state. In the off state, the source of the first MOSFET M1 cannot output the first conduction signal to the switching module 30. At this time, the switching state of the switching module 30 can be controlled by the different states of the first MOSFET M1, thereby controlling the power supply of the central processing module 50.

[0054] Please see Figure 1 and Figure 3 In some embodiments, the switch module 30 may be electrically connected between the power supply module 10 and the central processing module 50. The switch module 30 may be used to enter a conducting state according to a power supply signal to supply power to the central processing module 50. The switch module 30 may also be used to enter a cut-off state according to a power-off signal to stop supplying power to the central processing module 50. The switch module 30 may include a second voltage conversion unit 31, a second capacitor C2, and a second MOSFET M2.

[0055] Please see Figure 3 In some embodiments, the second MOSFET M2 can be a P-MOS transistor (e.g., IRF9310). The gate of the second MOSFET M2 is electrically connected to the source of the first MOSFET M1 to receive a first turn-on signal. The source of the second MOSFET M2 is electrically connected to the power module 10 to receive power supplied by the power module 10. The drain of the second MOSFET M2 is electrically connected to the central processing module 50 to output power to the central processing module 50. When the first MOSFET M1 enters the turn-on state and generates the first turn-on signal, the second MOSFET M2 enters the turn-on state upon receiving the first turn-on signal. When the first MOSFET M1 enters the cut-off state, the second MOSFET M2 also enters the cut-off state. By turning on or off, the second MOSFET M2 transmits or blocks the power supply from the power module 10, thereby controlling the operating state of the central processing module 50. The second MOSFET M2 acts as a switch in the circuit, controlling the power supply's on / off state according to the first turn-on signal.

[0056] Please see Figure 3 In some embodiments, one end of the second capacitor C2 is electrically connected to the drain of the second MOSFET M2, and the other end of the second capacitor C2 is grounded (GND), forming a current loop. The second capacitor C2 can filter the power supply output from the second MOSFET M2. Through filtering, interference signals such as noise and ripple in the power supply are eliminated or reduced, ensuring the stability and purity of the power supply. The size of the second capacitor C2 is not limited, for example, it can be 5~15μF.

[0057] Please see Figure 3 In some embodiments, the second voltage conversion unit 31 may be a DC-DC converter, which can be used to adjust the voltage of the filtered power supply provided by the second MOS transistor M2 and convert the voltage output by the second MOS transistor M2 into a specific voltage required by the central processing module 50 and its internal key components.

[0058] Please see Figure 1 and Figure 3In some embodiments, the reset module 40 may be electrically connected between the signal output unit 23 and the central processing module 50. The reset module 40 may be used to enter a conducting state according to a reset signal to clear the data stored in the central processing module 50. The reset module 40 may include a third capacitor C3, a second resistor R2, a third resistor R3, a third MOSFET M3, and a fourth MOSFET M4.

[0059] Please see Figure 3 In some embodiments, a power supply terminal may be provided on one side of the substrate management control unit 22. This power supply terminal can output a power supply to power the third MOSFET M3 and the fourth MOSFET M4. This power supply can be a 3.3V DC power supply, which can be represented as BMC_P3V3_SB. One end of the third capacitor C3 is electrically connected to the power supply terminal of the substrate management control unit 22, and the other end of the third capacitor C3 is grounded (GND), forming a current loop. The third capacitor C3 can filter the power supply output from the power supply terminal. The size of the third capacitor C3 is not limited, for example, it can be 5~15μF.

[0060] Please see Figure 3 In some embodiments, the third MOSFET M3 can be an N-MOS transistor (e.g., NX7002), which is turned on when its gate is low and turned off when its gate is high. The gate of the third MOSFET M3 can be electrically connected to the output terminal of the signal output unit 23 to receive a reset signal. The source of the third MOSFET M3 can be electrically connected to the power supply terminal of the substrate management control unit 22 through the second resistor R2 to receive the power supply provided by the substrate management control unit 22. The drain of the third MOSFET M3 can be grounded (GND) as a current loop. The second resistor R2 can step down the preset voltage (e.g., 3~5V) of the power supply and then use the stepped-down power supply to power the third MOSFET M3. The value of the second resistor R2 is not limited, for example, it can be 5~15KΩ.

[0061] Please see Figure 3In some embodiments, when the signal output unit 23 outputs a reset signal (e.g., the RTCRSTn signal is 1), the third MOSFET M3 enters the on state. In the on state, the source of the third MOSFET M3 can output a second conduction signal to the fourth MOSFET M4. When the signal output unit 23 does not output a reset signal (e.g., the RTCRSTn signal is 0), the third MOSFET M3 enters the off state. In the off state, the source of the third MOSFET M3 cannot output a second conduction signal to the fourth MOSFET M4. The RTCRSTn signal can be a low-level active signal sent to the central processing module 50. When the central processing module 50 detects that the signal is pulled low and held for a certain period of time, it will clear the CMOS settings stored in its internal RAM, such as BIOS configuration, hardware boot order, security key, etc., and restore them to factory default values.

[0062] Please see Figure 3 In some embodiments, the fourth MOSFET M4 can be an N-MOS transistor (model NX7002), which is turned on when its gate is low and turned off when its gate is high. The gate of the fourth MOSFET M4 can be electrically connected to the source of the third MOSFET M3 to receive the second turn-on signal. The source of the fourth MOSFET M4 can be electrically connected to the power supply terminal of the substrate management control unit 22 through the third resistor R3 to receive the power supply provided by the substrate management control unit 22. The drain of the fourth MOSFET M4 can be grounded (GND) as a current loop. The third resistor R3 can step down the preset voltage (e.g., 3~5V) of the power supply and then use the stepped-down power supply to power the fourth MOSFET M4. The value of the third resistor R3 is not limited, for example, it can be 5~15KΩ.

[0063] Please see Figure 3 In some embodiments, when the third MOSFET M3 outputs a second turn-on signal, the fourth MOSFET M4 enters a turn-on state. In the turn-on state, the source of the fourth MOSFET M4 can output a data clear signal to the central processing module 50. The central processing module 50 can enter a reset state according to the data clear signal to clear the system data stored internally and reset the system setting data in the central processing module 50.

[0064] In some embodiments, the central processing module 50 may include a central processing unit (CPU), a platform controller hub (PCH), and a complex programmable logic device (CPLD). The CPU is responsible for performing computation, control, and data processing tasks and is the core processing unit of the system. The PCH, part of the Intel chipset architecture, manages the connectivity and power supply functions of the CPU and other hardware (such as memory, storage, and peripherals). A complex programmable logic device (CPLD) is a programmable digital integrated circuit used to implement specific logic functions.

[0065] In some embodiments, when the system needs to be reset, the signal output unit 23 can output a low-level power-off signal (AUX_ON=0) and maintain it for a preset time (e.g., 10~50 seconds, or 20~40 seconds). At this time, the second MOSFET M2 enters the cutoff state due to insufficient gate-source voltage difference. After the second MOSFET M2 enters the cutoff state, the gate of the first MOSFET M1 cannot receive a signal, so the second MOSFET M2 will also enter the cutoff state. Subsequently, the circuit between the power supply module 10 and the central processing module 50 will be cut off, and the central processing module 50 can enter the ACPI G3 state (complete power-off state, and mechanical shutdown).

[0066] In some embodiments, when the central processing module 50 enters the ACPI G3 state, the signal output unit 23 can generate a high-level reset signal and transmit it to the gate of the third MOSFET M3. At this time, the third MOSFET M3 can enter the conducting state, and subsequently, the fourth MOSFET M4 can also enter the conducting state and generate a data clear signal. At this time, the reset pin of the central processing module 50 can be pulled high (logic high) by the data clear signal, triggering the CMOS clear action to clear the faulty system configuration data and restore the default system settings.

[0067] The present invention also provides a server, which may include the power supply system described above, and the power supply system can provide power and reset the central processing module 50 inside the server.

[0068] Please see Figure 4 The present invention also provides a power supply method for a server, which can be applied to the power supply system of the server described above. The power supply method may include the following steps:

[0069] Step S10: The server needs to be restarted after an error or firmware upgrade;

[0070] Step S20: Can the BMC trigger software shutdown and restart restore functionality? If not, proceed to the next step.

[0071] Step S30: Can the BMC trigger a hardware shutdown and restart to restore the system? If not, proceed to the next step.

[0072] Step S40: Can the BMC trigger G3 state and power on again restore the system? If not, proceed to the next step.

[0073] In step S50, the BMC triggers the G3 state and triggers the CMOS clearing action, resetting the system setting data in the central processing module.

[0074] In some embodiments, in step S10, the current state of the central processing module can be determined. When the server is in an abnormal state or undergoing firmware upgrade, the baseboard management control module generates a corresponding power supply signal according to external power supply commands. In steps S20 and S30, the switch module can enter the conduction state according to the power supply signal to supply power to the central processing module. Steps S10, S20, and S30 are operations supported by the default BMC function and will not be described in detail here.

[0075] In some embodiments, in steps S40 and S50, it is determined whether the central processing module has resumed its working state. When the central processing module is in an abnormal state or undergoing firmware upgrade, the baseboard management control module generates a corresponding power-off signal according to the external power-off command. The switch module enters the cut-off state according to the power-off signal to stop supplying power to the central processing module, and causes the central processing module to enter the G3 state and trigger the CMOS clearing action.

[0076] In some embodiments, steps S40 and S50 allow for a more thorough and secure remote recovery of the remote server. The Baseboard Management Control Unit 22 (BMC) is powered entirely independently of the auxiliary power supply to the Central Processing Module 50. The Power Module 10 continuously supplies power to the Baseboard Management Control Unit 22 via the First Voltage Conversion Unit 21, and the Baseboard Management Control Unit 22 is normally open. The Power Module 10 supplies power to the Central Processing Module 50 via the Switch Module 30 and the Second Voltage Conversion Unit 31. The Switch Module 30 can be controlled by the Baseboard Management Control Unit 22 to open and close.

[0077] In some embodiments, in step S40, the baseboard management control unit 22 (BMC) can trigger the AUX_ON signal to be 0 and maintain it for a first preset time (e.g., 10~50 seconds, or 20~40 seconds). The switch module 30 (SW1) completely shuts off the auxiliary power supply of the central processing module 50, realizing the complete power-off state (G3 state) of the central processing module 50. Subsequently, the baseboard management control unit 22 (BMC) outputs the AUX_ON signal to be 1, and the switch module 30 (SW1) turns on the auxiliary power supply of the central processing module 50. When not powered on, the central processing module 50 system returns to the ACPI S5 state, and the server can then operate according to the normal power-on procedure.

[0078] In some embodiments, in step S50, the baseboard management control unit 22 (BMC) triggers the AUX_ON signal to be 0 to turn off the switch module 30 (SW1) and maintains it for a second preset time (e.g., 30~50 seconds, or 30~40 seconds). The switch module 30 (SW1) completely turns off the auxiliary power supply of the central processing module 50, and fully realizes the G3 state of the central processing module 50. In the G3 state, the baseboard management control unit 22 (BMC) can send a 1-second low-level pulse to the platform controller hub (PCH) of the central processing module 50 through the RTCRST signal to clear the CMOS. Subsequently, the baseboard management control unit 22 (BMC) outputs the AUX_ON signal to be 1 to turn on the auxiliary power supply of the central processing module 50. When not powered on, the central processing module 50 returns to the ACPIS5 state, and the server can then operate according to the normal power-on procedure.

[0079] It is worth noting that the triggering conditions for this application can be initiated by the administrator through remote commands or automatically by the system. For example, the administrator can initiate a power-down request for the G3 state through IPMI commands, the Redfish API, or the BMC Web interface. Alternatively, when the baseboard management control unit 22 monitors the system and detects an unrecoverable system deadlock, a specific hardware error, or temperature runaway, it can be automatically triggered according to a preset strategy.

[0080] In some embodiments, when the trigger condition is executed by the board management control unit 22, if the system is in the power-on state (S0), an emergency shutdown signal can be sent, for example, through the Intelligent Platform Management Interface (IPMI), to attempt to quickly but relatively orderly shut down the operating system. If this step fails or times out, the next step continues. When AUX_ON=0, the board management control unit 22 controls the GPIO (General Purpose Input / Output) pin of the AUX_ON signal to output a low level. This signal is transmitted to the control electrode of the switching module, causing the switching module to immediately turn off. Then, the board management control unit 22 maintains the AUX_ON=0 state for a preset time. There are a large number of capacitors in the CPU system auxiliary power domain, and the preset holding time ensures that these capacitors have enough time to be completely discharged through the onboard bleed resistor, completely disabling all related chips and eliminating any unstable state that may be maintained by residual charge. Then, AUX_ON=1 is restored. After the preset time, the board management control unit 22 restores the AUX_ON signal to a high level, restarts the switching module, and the CPU auxiliary power domain is powered on again. Then, the state is restored. At this point, the main system hardware has undergone a complete power-down in the G3 state. After the system hardware self-test, it will stabilize in the ACPI S5 state, waiting for the next power-on command.

[0081] As can be seen, the above solution allows for remote disconnection of the auxiliary power supply to the central processing module, simulating the G3 complete power-off state according to the ACPI (Advanced Configuration and Power Interface) specification. This enables in-depth operations such as CMOS clearing, system reset, and hardware reset, thus ensuring compliant remote power-off procedures. Completely disconnecting the auxiliary power supply eliminates standby power consumption during shutdown, reducing energy waste and mitigating the risk of hardware aging caused by long-term low-power operation of critical components. By remotely simulating the power-off and recovery process, manual on-site maintenance is replaced, significantly reducing the maintenance costs and downtime of servers in remote areas. Furthermore, this application enables efficient energy management. In data centers in remote areas, all power supplies (including auxiliary power supplies) to completely unused equipment can be remotely disconnected, achieving true zero power consumption, and then remotely woken up when needed. This is particularly beneficial for AI models (such as Large Language Models (LLM) and diffusion models), where power operating costs are extremely high. The efficient energy management of this application enables more computation to be completed with the same power consumption and heat dissipation budget, thereby driving the advancement of AI performance. Therefore, energy management is directly related to the feasibility, technological scalability, and application universality of AI. In addition, the solution of this application avoids complex timing logic problems and ensures that all operations comply with mandatory industry standards, especially reducing manual intervention and lowering maintenance costs.

[0082] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A power supply system for a server, characterized in that, include: Power module; The baseboard management and control module is electrically connected between the power module and the central processing module of the server, and is used to generate corresponding power supply signals and power failure signals according to external power supply commands and power failure commands respectively. A switching module is electrically connected between the power supply module and the central processing module; the switching module is used to enter a conducting state according to the power supply signal to supply power to the central processing module; the switching module is also used to enter a cut-off state according to the power-off signal to stop supplying power to the central processing module. A reset module is electrically connected between the baseboard management and control module and the central processing module. The reset module is used to reset the system setting data in the central processing module according to the reset signal of the baseboard management and control module. The substrate management and control module includes: A baseboard management control unit is used to receive the power supply command and the power off command; A signal output unit is used to generate a corresponding power supply signal according to the power supply command, and to generate a corresponding power off signal according to the power off command. The first MOSFET has its gate electrically connected to the output terminal of the signal output unit, its source electrically connected to the power supply module and the switching module, and its drain grounded. The first MOSFET enters the on state when it receives the power supply signal and enters the off state when it receives the power off signal.

2. The power supply system for the server according to claim 1, characterized in that, The substrate management and control module further includes a first voltage conversion unit; the first voltage conversion unit is used to adjust the voltage of the power supply of the power module and supply power to the substrate management and control unit through the adjusted power supply.

3. The power supply system for the server according to claim 1, characterized in that, The substrate management and control module also includes: The first capacitor has one end electrically connected to the output terminal of the power module and the other end grounded. The first resistor is used to electrically connect the source of the first MOSFET to the power module to receive power from the power module; the source of the first MOSFET is also electrically connected to the switching module, and the drain of the first MOSFET is grounded.

4. The power supply system for the server according to claim 1, characterized in that, The switching module includes a second MOS transistor; the gate of the second MOS transistor is electrically connected to the source of the first MOS transistor, the source of the second MOS transistor is electrically connected to the power supply module, and the drain of the second MOS transistor is electrically connected to the central processing module. In this configuration, the first MOSFET generates a first conduction signal after entering the conduction state, and the second MOSFET enters the conduction state upon receiving the first conduction signal.

5. The power supply system for the server according to claim 4, characterized in that, When a reset is performed, the signal output unit outputs a low-level power-off signal to the first MOS transistor and maintains it for a preset time. The second MOS transistor then enters the cut-off state, and the central processing module enters a completely power-off state.

6. The power supply system for the server according to claim 4, characterized in that, The switching module includes: The second voltage conversion unit is electrically connected between the drain of the second MOS transistor and the central processing module. The second voltage conversion unit is used to adjust the voltage of the power supply of the power module and supply power to the central processing module through the adjusted power supply. The second capacitor has one end electrically connected to the drain of the second MOSFET, and the other end grounded.

7. The power supply system for the server according to claim 5, characterized in that, The reset module includes: The third MOS transistor has its gate electrically connected to the output terminal of the signal output unit, its source electrically connected to the substrate management and control unit, and its drain grounded. The fourth MOS transistor has its gate electrically connected to the source of the third MOS transistor, its source electrically connected to the substrate management control unit and the central processing module, and its drain grounded. Specifically, the third MOSFET enters the conducting state upon receiving the reset signal and generates a second conduction signal; the fourth MOSFET enters the conducting state upon receiving the second conduction signal and generates a data reset signal; the central processing module enters the reset state based on the data reset signal to reset the system setting data in the central processing module.

8. A server, characterized in that, The power supply system of the server as described in any one of claims 1 to 7.

9. A power supply method for a server, characterized in that, The power supply method is applied to the power supply system of the server as described in any one of claims 1 to 7, and the power supply method includes: The current status of the central processing module is determined. When it is in an abnormal state or undergoing firmware upgrade, the baseboard management and control module generates a corresponding power supply signal based on the external power supply command. The switching module enters the conduction state according to the power supply signal to supply power to the central processing module; The system determines whether the central processing module has resumed operation. When the central processing module is in an abnormal state or undergoing firmware upgrade, the baseboard management and control module generates a corresponding power-off signal based on the external power-off command. The switching module enters the cut-off state according to the power-off signal to stop supplying power to the central processing module, puts the central processing module into a completely power-off state, and resets the system setting data in the central processing module.

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