Power management method and system

A node, configured to:

• receive a power-on instruction from a power management module, wherein the power-on instruction is used to instruct a platform controller hub (PCH) of a first node to power on the first node and to instruct a PCH of a second node to power on the second node;
• and
• switch the PCH of the first node to a sleep state after being powered on, wherein the PCH of the second node is configured to manage power of the first node, wherein the node comprised a flash and the node is configured to:
• upload a basic input output system (BIOS) from the flash of the first node based on the power-on instruction to perform a power-on operation.

A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to carry out operations comprising:

• receiving a power-on instruction from a power management module, wherein the power-on instruction is used to instruct a platform controller hub (PCH) of a first node to power on the first node and to instruct a PCH of a second node to power on the second node;
• powering on the first node based on the power-on instruction;
• and switching the PCH of the first node to a sleep state after being powered on, wherein the PCH of the second node is configured to manage power of the first node;
• and
• uploading a basic input output system (BIOS) from a flash of the first node based on the power-on instruction to perform a power-on operation.