Patent ID: 7424633

Claim:
A method for estimating power consumption of a CPU, the method comprising the steps of: switching on a power supply, which provides power to a motherboard through a connector; creating a power estimation table; installing a CPU fixture on the motherboard, the CPU fixture being connected with a direct current electronic load; adjusting output current data of the direct current electronic load and recording test data of input voltage data and input current data of the connector, and output voltage data of the CPU fixture according to different adjusted output current data; calculating multiple CPU fixture power transferring efficiency; replacing the CPU fixture with a CPU on the motherboard and disconnecting the direct current electronic load; executing a test program and recording test data of an input voltage data and an input current data of the connector, and a core voltage data of the CPU; analyzing and calculating a CPU power transferring efficiency according to the above recorded test data; and estimating the power consumption of the CPU as a product of the CPU power transferring efficiency, the input voltage data and the input current data that were recorded in the executing step.