All Toshiba laptops use a fan to prevent the CPU (central processing unit) from overheating and getting damaged. As the default, the speed of this fan is set using "Smart Fan Control." This automatically adjusts the fan speed depending on how hot the CPU is. Because this means that your fan isn't running all the time, it makes the computer quieter but also more likely to become hot. Smart Fan Control can be turned off, so that your fan will run all the time, from the BIOS (Basic Input/Output System) menu.
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Turn on your Toshiba laptop.
Hold down the appropriate key while your computer is starting to open the BIOS menu. Depending on the exact model of your Toshiba laptop, this will be either the "F1," "F2," or the "Esc" key. You can move around in the BIOS menu by using the arrow keys, and you select the highlighted option by pressing "Enter."
Find the "Fan Settings" options page. This is normally under the "Hardware Monitor" or "H/W Monitor" menu. The exact location will vary depending on the model of Toshiba laptop you are using.
Find the "Smart Fan" option. Change this setting to "disabled" using the arrow keys. Your fan will now run at full speed all the time. To lower the speed, you can lower the fan's voltage in the "CPU Fan Voltage" setting.
Save your changes using the "Save Settings and Exit" option.
Exit the BIOS menu using the "Exit" option. Your laptop restarts with the new fan settings.
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