A CPU DC fan refers to a CPU cooling fan powered by a direct current (DC) power supply.
1.A CPU DC fan is a fan that operates using DC power and is connected to the motherboard to cool the CPU.
2.These fans are typically connected to the motherboard via 3-pin or 4-pin connectors.
3.Compared to alternating current (AC) fans, DC fans are more energy-efficient, quieter, and have a longer lifespan.
DC stands for Direct Current, which refers to a constant voltage power supply. In the context of motherboard CPU fans, DC generally indicates the type of power interface used. Some CPU fans use the standard 4-pin PWM connector, while others use 3-pin or 2-pin DC connectors.
DC-powered fans represent an earlier fan technology and are generally simpler and easier to use than PWM-powered fans.
However, DC fan speeds are usually fixed and cannot be adjusted, whereas PWM (Pulse Width Modulation) fans allow for speed control via the motherboard or an external controller.
If your motherboard has a variable-speed CPU fan connector, it is recommended to choose a CPU fan with a PWM connector for better cooling efficiency and noise control.