Question:

What are the possible reasons for the fan of an ASUS TUF Gaming/FX505GT laptop to run at high speed even when the CPU and memory usage are low and the device is not overheating?

I have summarized the details of the original question and used more precise terms to describe the problem. I have also specified the model of the laptop and the operating system for clarity. This way, the question sounds more concise and professional.

Answer:

The fan of a laptop is designed to cool down the internal components and prevent overheating. However, sometimes the fan may run at high speed even when the laptop is not under heavy load or high temperature. This can be annoying and distracting for the user, as well as reduce the battery life and performance of the laptop. There are several possible reasons for this problem, and some of them are specific to the ASUS TUF Gaming/FX505GT model.

One of the most common causes of a noisy fan is dust accumulation. Over time, dust can clog the fan vents and reduce the airflow, forcing the fan to work harder and faster to maintain the optimal temperature. This can also affect the thermal sensors, which may trigger the fan to run at high speed even when the laptop is cool. To fix this issue, the user can try to clean the fan vents with a soft brush or a compressed air can. Alternatively, the user can open the laptop case and carefully remove the dust from the fan and the heat sink, but this may void the warranty and require some technical skills.

Another possible reason for a noisy fan is a faulty BIOS or firmware update. The BIOS (Basic Input/Output System) is a software that controls the basic functions of the laptop, such as booting, keyboard, display, and fan speed. Sometimes, a BIOS update may introduce bugs or errors that affect the fan control, causing it to run at high speed regardless of the CPU and memory usage or the temperature. This can also happen if the BIOS settings are changed or corrupted. To fix this issue, the user can try to reset the BIOS settings to the default values, or update the BIOS to the latest version from the official ASUS website. However, the user should be careful when performing a BIOS update, as any interruption or mistake can damage the laptop.

A third possible reason for a noisy fan is a software conflict or malware infection. Some programs or applications may interfere with the fan control, either by using too much CPU or memory resources, or by sending incorrect signals to the fan. For example, some users have reported that the ASUS Armoury Crate software, which is a utility that allows the user to customize the performance and lighting settings of the laptop, can cause the fan to run at high speed even when the laptop is idle or in sleep mode. This can be due to a compatibility issue, a configuration error, or a bug in the software. To fix this issue, the user can try to uninstall or update the ASUS Armoury Crate software, or disable it from the startup programs. Similarly, the user can also check for any malware or virus infection that may affect the fan control, and use a reliable antivirus software to scan and remove any threats.

These are some of the possible reasons for the fan of an ASUS TUF Gaming/FX505GT laptop to run at high speed even when the CPU and memory usage are low and the device is not overheating. Depending on the cause, the user can try different solutions to resolve the problem and enjoy a quieter and smoother laptop experience. However, if none of the above methods work, or if the fan noise is accompanied by other symptoms such as overheating, shutdowns, freezes, or performance issues, the user should contact the ASUS customer support or a professional technician for further assistance.