Therefore, if it is not functional, your device will not boot. So, what is the difference?įirstly, the CPU_FAN header is a primary header. What’s The Difference Between CPU Fan And CPU Opt?īoth of these are headers and connectors for CPU cooling fans. It also ensures your device gets effective cooling during busy working hours. Using both CPU_FAN and CPU_OPT allows you to maintain the good condition of your CPU. If you need to use multiple fans to cool down your CPU unit, the best way is to use both these headers. Hence, it is also able to adjust the fan speed according to CPU temperature. Like the CPU_FAN, CPU_OPT also has a 4-pin structure. But, CPU-Opt can give your warnings if your device is overheated. That means, even if this header is empty, your device will run smoothly. Hence, your CPU does not need a fan connected to this header for working normally. The phrase” OPT” stands for “Optional.” So that means the fan connected to this header is the optional cooling fan. If you have multiple CPU cooling fans, you need to check out “CPU_OPT.” It is an additional header to connect the other fan. It can also be helpful if you intend to use an AIO/Liquid cooling system besides the primary cooling system. In such cases, only a single header is not enough to connect the coolers. In some devices, more than one CPU cooling fan is required due to workload. This header comes with four pins to offer better voltage and fan speed according to the CPU temperature. The same also happens if one of the fans is not working despite being connected to this header. If any fan is not connected to it, your device will shut down immediately. The “CPU_FAN” allows the CPU to continue to function by adjusting the fan speed. It will also not allow you to boot your system safely. One should always connect the CPU cooling fans to this heart. It is the primary header used by the motherboard and other software like HWMonitor, NZXT CAM, etc., to control the speed of the fan and ensure your CPU does not suffer from overheating. The word “CPU_FAN” also has a different meaning. The CPU Fan keeps the motherboard, the Bios, and other complicated circuits cool and maintains the CPU thermals. So, what is a CPU Fan? It is a small fan or cooler connected to the motherboard. The command” CPU_FAN” stands for the header of the CPU Fan. Conclusion – How To Use The CPU_FAN & CPU_OPT Headers.What’s The Difference Between CPU Fan And CPU Opt?.
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