If you are willing to learn more about motherboard quality you must deeply study the voltage regulator circuit, which is in charge of taking the voltage provided by the power supply – namely +12 V – and converting it into the appropriate voltage required by the CPU, memories, chipset and other circuits present. In this tutorial we will present an in-depth trip inside the motherboard voltage regulator circuit, showing you how to identify this circuit, how it works, what the most common projects are and how to identify good-quality components.