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1. Computer host power fan replacement tutorial to improve power cooling effect and extend power life
Computer host power fan replacement tutorial: Aging or damage to the power fan can affect heat dissipation efficiency, leading to computer restart, increased noise, or insufficient power supply. If the fan is struggling or not rotating, it should be replaced in a timely manner. Correctly replacing the fan can improve heat dissipation and extend the lifespan of the power supply.
1. Confirm the size of the fan model: The common size of the power supply fan is 12cm or 14cm, which needs to be selected according to the reserved space inside the power supply.
. The simplest method is to disassemble the power supply casing (operate after power off) and check the specifications of the original fan, including size, interface type (3pin or 4pin), and voltage (usually 12V). If it is inconvenient to disassemble, you can take photos to record the parameters and compare them for selection. Interface and voltage matching: Ensure that the new fan interface type (3pin/4pin) and voltage (12V) are consistent with the original fan to avoid damage caused by incompatibility. Prioritize temperature control function: It is recommended to choose a fan with temperature control function, which runs silently at low loads and automatically accelerates and cools down at high loads, balancing performance and a calm experience.2. Precautions for disassembly and assembly: Power off and discharge: Turn off the computer and unplug the power cord of the host.
. Press the power button to idle for a few seconds, releasing the residual power inside the power supply to avoid the risk of electric shock. Disassembly process: Remove the side panel of the host and locate the power supply position. Remove the screws that secure the power supply and take it out of the host. Remove the power supply casing (usually requires unscrewing four screws). Find the fan and record the interface direction, then unplug the plug. Unscrew the screws that secure the fan and remove the old fan. Install new fan: Align the new fan with the installation position and tighten the fixing screws. Connect the fan plug and ensure that the interface direction is consistent with the original one. Reinstall the power supply casing and host. Wind direction confirmation: Pay attention to the wind direction of the fan during installation. The side marked with the "Air Flow" arrow should face the inside of the power supply to ensure that the wind blows from the inside out and effectively dissipate heat.III. Testing and Maintenance After Replacement Power on Test: After reinstalling the power supply, do not cover the housing first, and power on to test whether the fan is running normally.
. Use system monitoring software (such as HWMonitor) to check the speed and power temperature, confirm that there are no abnormalities, and then reinstall the host. Cleaning up dust accumulation: When replacing the fan, you can also clean the dust accumulation inside the power supply, especially the filter and inductor parts, to improve heat dissipation efficiency. Safety reminder: If you are not familiar with the internal structure of the power supply, it is recommended to seek the assistance of a knowledgeable friend to avoid accidentally touching the high-voltage capacitor. It is not recommended to frequently replace non original fans, as different fans have significant differences in