Power management method for server system

摘要

A power management method for a server system is provided. At least any one of a power status indication signal and an alert signal from a power supply is detected to judge whether an input voltage is normal. If it is judged that the input voltage is abnormal, a motherboard sends the power status indication signal to a battery backup unit (BBU) to inform the BBU to supply power to the motherboard. If it is judged that the input voltage is abnormal, the motherboard lowers its loading.

主权项

1. A power management method for a server system, the server system at least comprising a battery backup unit (BBU), a motherboard and at least a power supply, the power management method comprising:
detecting, by the motherboard, at least anyone of a power status indication signal and an alert signal sent from the power supply to judge whether an input voltage is normal; sending the power status indication signal by the motherboard to the BBU to inform the BBU to supply power to the motherboard if it is judged that the input voltage is abnormal; lowering loading of the motherboard to a low loading state by hardware interrupt if it is judged that the input voltage is abnormal, wherein the low loading state allows the motherboard to stay powered on with lower performance than a high loading state; detecting a battery level of the BBU; and increasing loading of the motherboard from the low loading state to the high loading state, in response to the battery level detected as high.