Introduction
If your laptop is overheating and there is no fan noise, it may be in need of a fan replacement. Follow these steps to do so.
Tools
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            Close the laptop and flip it so that the screen is on the surface of the table and the back plate is facing you. 
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            Remove the 3.3 mm screw near the top of the hinge using a T5 Torx screwdriver. 
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            Remove the remaining four 7.3 mm screws using the same screwdriver. 
 
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            Separate the bottom cover from the laptop, starting from the upper corner and working your way around the edge. 
 
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            Use a Phillips #1 screwdriver to remove the four 3.5 mm screws near the middle of the fan assembly. 
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            Use the same screwdriver to remove the remaining five 3.9 mm screws. 
 
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            Before pulling the fan out, identify the two wires that are connected to the fan and to the motherboard. 
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            For each, use plastic opening tool to lift the black wire housing upward out of its port. 
 
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            Slide the fan assembly toward you, and when the top edge of the fan is out of the vent grill, the fan is completely removed. 
 
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To reassemble your device, follow these instructions in reverse order.