The BIOS (Basic Input Output System) is the core control unit of the computer, which can realize the configuration and control of the computer hardware, and includes an important function: fan speed setting. In some brands of BIOS, it may be grouped under "Advanced>MiscConfiguration" for setting. This article will explain how to set the fan speed in the BIOS and what to look out for.
Part 1: How to enter the BIOS settings interface
To access the BIOS settings screen, you usually need to press a specific key when your computer is turned on. In general, the keys may be "F2", "Del", or "Enter", please refer to the manual of your computer or the manufacturer's reference document for details. After entering the BIOS setting interface, you can find "Advanced>MISCCconfiguration", click to enter the "MISCCconfiguration" setting interface.
2. Set the fan speed in the BIOS
In the "MiscConfiguration" setting screen, we can find the "FanSpeedPolicy" option, select "Default" or "Highspeed", which represents two fan speed modes: normal speed and high speed. You can choose the appropriate mode according to your computer's hardware configuration and cooling needs. After the setup, please click "F10" to save and exit the BIOS settings interface.
3. Precautions when setting the fan speed
When setting the fan speed, you need to pay attention to the following:
1.Choose the right fan speed mode: Different hardware configurations and cooling needs require different fan speed modes. Generally speaking, if the computer is running stably and does not overheat, you can choose the default normal speed mode; On the other hand, if the computer has poor heat dissipation and often overheats, you can choose the high-speed speed mode.
2.Avoid misoperation: In the BIOS settings screen, some operations may cause system crashes or other problems. To avoid misuse, it is recommended to read the relevant documentation or tutorial carefully before setting it up, and make sure that you understand all the options and their meanings.
3.Clean the inside of your computer and the dust on your cooler regularly: Dust can affect how well your computer dissipates heat, so it's important to clean it regularly. You can use compressed air, brushes, and other tools to clean dust from the inside of your computer and from your cooler.
4.Regular maintenance and maintenance of your computer: Regular maintenance and maintenance of your computer is one of the important measures to maintain good heat dissipation. This includes checking for faulty or loose hardware, updating drivers, cleaning up disk junk, and more.
5.Understand the definition and working principle of the motherboard's fan connector: The BIOS fan speed setting depends on the definition and working principle of the fan connector. The fan interface has 4 signal cables, of which 1 pin is GND, 2 pin is 12V power supply, 3 pin is TACH speed acquisition signal, and 4 pin is PWM speed control signal. The fan is usually controlled by an EC chip, the PWM signal is a square wave signal, and the speed is controlled by the length of time at the high level.
Fourth, summary
Setting the fan speed in the BIOS is an important step to ensure the stable operation of the computer and prolong the service life. When setting up, you need to pay attention to selecting the appropriate fan speed mode to avoid misoperation, regularly clean the dust inside the computer and the dust on the radiator, and regularly maintain and maintain the computer. At the same time, understanding the definition and working principle of the motherboard fan connector can also help to better understand and set the fan speed.