80mm fan to 120mm fan

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Converting an 80mm computer fan to a 120mm computer fan is a relatively straightforward process that requires some basic tools and mechanical aptitude. The first step is to purchase or obtain a 120mm fan that is compatible with your system's motherboard and case. Once you have the new fan, carefully remove it from its packaging and take note of any screws or clips that may be holding it in place. Next, disconnect all cables connected to the old fan, taking care not to damage any of the delicate wiring. With the cables removed, gently pull the old fan out of the case, being mindful not to touch any electrical components. Set the old fan aside and prepare the new 120mm fan for installation. Locate the mounting holes on the back of the case and align them with the corresponding holes on the fan's frame. Screw the fan into place using the provided screws, making sure they are securely tightened to prevent any movement during operation. Once the fan is mounted, reconnect all cables connected to it, ensuring that they are securely fastened to the motherboard. Finally, plug in the power cord and turn on your computer to test the new fan. If everything is properly installed, you should hear a significant decrease in noise levels compared to the old fan.