Computer repair is an important area, especially in big cities like Kaunas, where there are many active computer users. One of the essential components of a computer is the power supply circuit. Understanding the basic power circuits of a computer and how they work can help not only professional repairers, but also ordinary users who want to better maintain their equipment.
Power supply unit (PSU)
The power supply unit, or PSU (Power Supply Unit), is one of the most important power circuits in a computer. It converts alternating current (AC) from the mains into direct current (DC), which is used by the computer components. The PSU has different output voltage levels such as 3.3V, 5V and 12V which are used to power different components.
Motherboard
The motherboard is the central part of the computer, where all the power flows through. It has built-in power regulators that ensure that every component of the computer gets the voltage and current it needs. The motherboard also has a variety of connectors that allow you to connect additional power supplies or batteries.
Processor power supply circuit
The processor (CPU) is one of the most energy-intensive parts of a computer. Its power supply circuit usually consists of several phases, called VRMs (Voltage Regulator Modules), which help to provide stable power to the CPU. Each phase has transistors and inductors that regulate the voltage and current to keep the CPU running efficiently and stably.
Video card power supply
The graphics card (GPU) is also power-hungry, especially if it is used for graphics-intensive work or gaming. The power circuit of a video card is often similar to that of a CPU, but it has an additional power connector for direct connection to the PSU to ensure sufficient power supply.
RAM power supply
RAM also has its own power supply circuit to ensure that the memory modules receive a constant voltage and current. The RAM power supply circuit is usually integrated into the motherboard and is directly connected to the main power supply.
How to keep your computer running for longer
Understanding your computer's power supply circuits and how they work is an essential step in ensuring your computer's long-term, stable performance. Regular cleaning of the PSU, the use of quality power supply components and proper cooling can significantly extend the life of your computer. Our computer repair specialists in Kaunas can help you carry out these tasks professionally and efficiently, ensuring that your computer runs smoothly.