Similarly, the capacitors are placed on the side of the Choke which are mostly in a cylindrical shape. You will see large coils, that is, the Choke around the CPU near the MOSFET. You can find the MOSFET under the heat sinks as they tend to generate a lot of heat. Most of the motherboard has multi-phase VRM and consists of multiple numbers of these components. What Constitutes a VRM?Ī single-phase Voltage Regulator Module is made up of three main components two MOSFETs, a Choke and a Capacitor. It supplies the clean and regulated energy through the integration of operations performed by its constituent parts. The VRM is not a single chip or a wire on the motherboard. Hence, You can consider it as a mini power supply unit. Just like a PSU converts high voltage from the power socket of your home into the amount necessary for your system, a VRM takes high voltage from the PSU and steps it down. You can find the VRM embedded on the motherboard near the CPU. It also supplies the designated voltage to RAM or other parts. VRM, as the name suggests, is a component that regulates the voltage coming from the PSU and transfers the required voltage to the CPU after cleaning it of spikes and surges. Hence, a motherboard needs a mechanism to supply these minute amounts of power. Most of the circuitry is so delicate that it requires very less voltage to function. The components on your motherboard do not need all the 12 V power supplied by the power supply unit. Prevent Damage of Components and BSOD Errors.
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