Why is my fan speed 0 rpm?

By Guidelines

Why is my fan speed 0 rpm?

If the fan is spinning and yet you see 0 RPM in software, it’s clearly bad reading. Sometimes software used cannot detect automatically what motherboard you have and will not know how to read the speeds or temps properly. You can either try to change some settings to make it work, or use different software.

What is CPU OPT fan for?

CPU_OPT, standing for “CPU Optional”, is mostly used when you have more than one fan on your cooler/radiator and you need someplace to plug it in. It’s basically CPU_FAN without the “not booting if nothing is connected to it” part.

Is it normal for CPU fans not to spin?

If your CPU fan does not spin, the issue could be anywhere from the fan, the motherboard, to the power supply unit. The fan can get clogged with dust and lint hence preventing it from spinning. The same problem could originate from the PSU (power supply unit) if it is not able to output the 5V or 12V to power your fan.

Can CPU fan go in OPT?

Can I Use CPU OPT for Case Fan? CPU fan header, CPU OPT, and SYS fan header, if all of them are 4 pin fan headers, the motherboard, and in turn the BIOS and the OS, can control the fans’ speed. therefore, theoretically, you can connect the case fan or one of the case fans to the CPU OPT without a problem.

How do I check my fan speed Windows 10?

How can I control my CPU fan speed in Windows 10?

  1. Download SpeedFan for Windows 10.
  2. You should see the CPU and GPU fans in the left panel.
  3. There, you can choose the percentage of fan speed (100% is full throttle).

Why did my PC fans stop spinning?

There are three main reasons why your CPU fan is not spinning properly: the fan is clogged with dust, wires might get stuck in the fan or the fan does not get enough energy supply to spin. Getting rid of these causes might get your CPU fan up and running again.

Can I plug a 3 pin fan into CPU opt?

Splendid. If you use the CPU_OPT, would recommend you plug the rear case fan to that. Since that header is tied to the same sensor that drives your CPU fan, the rear fan will spin up at a rate proportional to the CPU cooler.