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If they’re connected to the power supply (usually through a Molex connector), there’s no way to control them through software-you’d have to hook them up to a hardware fan controller. The fans in your computer can get power in one of two ways: From the motherboard, or directly from your computer’s power supply. Look for RPM settings for your computer fan. Here you will see the “Fan Speed Control” section. Go to “Monitor”, “Status” or something similar named menu. Once you are into Windows 10 BIOS, use the arrow keys on your keyboard to locate “Fan Speed Control” options.
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