What interface is cpu opt?

cpu opt refers to the dedicated interface for the water-cooling pump on the motherboard. If there is a split water-cooling, it is usually connected to the water-cooling pump, which can provide sufficient power for the water pump; the interface is preset to full-speed operation mode to ensure that the water pump Always operate stably and efficiently.

The operating environment of this tutorial: Windows 10 system, Dell G3 computer.

cpuopt is a special interface for water-cooling pumps. If there is split-type water cooling, it is usually connected to the water-cooling pump.

The motherboard CPU OPT interface, this interface can provide sufficient power supply for the water pump. The interface is preset to full-speed operation mode to ensure that the water pump always operates stably and efficiently.

CPU_FAN is a dedicated interface for the CPU radiator, 12V working voltage, 4PIN (pin), the 4-pin fan has a PWM intelligent speed adjustment function, which intelligently controls the fan speed according to load and temperature changes. Compared with 3 pins, the line with more than 4 pins is the speed adjustment line. The 3-pin fan does not have PWM adjustment capability, but it can detect the fan speed. The air-cooling radiator fan or water-cooling radiator fan is connected to the CPU_FAN, and the 4-pin PWM intelligent temperature control can avoid the problem of excessive noise.

SYS_FAN is also called "system cooling fan socket", 4PIN (pin), usually connected to the chassis fan. Some installed users want to have better cooling conditions inside the chassis, or build air ducts, so it may A chassis fan will be added, which will be connected to the SYS_FAN interface. If the chassis fan is a 3-pin one, it can be plugged in and used, but there is one less speed adjustment wire. In addition, some motherboards have CHA_FAN, which is a chassis fan, but you can also use it to connect other 12v fans.

If there is only one CHA_FAN or SYS_FAN on the motherboard, and there are multiple chassis fans, how to connect them? These fans are all 4-pin. If you want to achieve speed adjustment, you can Just buy a fan hub (FAN HUB).

There are also some biased ones, chip_fan belongs to the Northbridge fan, and PWR_FAN belongs to the power supply fan, which are generally not used.

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