Patent ID: 7433800

Claim:
A system for measuring performance of a voltage regulator module (VRM) attached to a microprocessor, the system comprising: a voltage transient tester (VTT) fixture connected to the VRM for setting different working voltage levels of the VRM in order to have the VRM work in different load currents; an oscillograph connected to a computer for measuring transient voltage levels of the VRM under the different load currents, and for generating a transient voltage waveform according to the transient voltage levels; an voltmeter connected to the computer for measuring steady voltage levels of the VRM under thermal effects generated by the microprocessor; a direct current (DC) electronic load connected to the computer for educing load currents of the VTT fixture from the VRM; and a measurement control module installed in the computer for generating load current control signals, and for controlling the DC electronic load to educe the load currents from the VRM according to the load current control signals, wherein the measurement control module comprises a performance report generating sub-module for generating a performance report of the VRM by integrating various measurement results that comprise the transient voltage levels, the transient voltage waveform, the steady voltage levels, and the values of the load currents.