Henery why are you complicating this ?? The VRM is a Voltage Regulating Modual.It like many components has several components that make it a VRM.However these components are clustered together and work together and can be temp monitered as a single component.
I am intrested in temps from different M/B because location AND MAX TEMPS affect system performance.EXAMPLE on aTYAN S2460 VRM2 is located behind the Video card near the AGP slot and close to the Processor socket.On 2 systems I have this vrm runs at 52c and higher,The adjacent processor runs at 49c max load,where the opposite processor and VRM run up to 6c cooler because of VRM location and Because the VRM gets residue air flow from the heat sink fans.[My conclusion based on limited info available}
If others can post VRM temps for booth VRM modules and compair that to the Processors temps I can see if this 1 VRM with a high temp is causing temp differences in the processors and maybe come up with a cooing idea for the VRM modules.