VRM (Voltage Regulator Module) is used for supplying proper voltage to the processor for its operation. A VRM (Voltage Regulator Module) is installed in Header 8 on the motherboard.
Most VRMs have VID (Voltage ID). VID allows the processor to program the correct voltage during power-on. If the motherboard has Header 8, then a VRM must be installed in the header to power the processor.
High-performance computers use multiple microprocessors to satisfy the computingspeeds. The applications use one VRM for each microprocessor to take advantage of the modularity and economy offered by the VRM. These multiple VRMS are designed to share the total current demand of the processors.
