Introduction

Internal fans keep a computer at a stable temperature while operating. A faulty fan can cause a computer to overheat. It is important that all fans are in working order. Replacing a fan is an important skill for desktop PC users.

Parts

No parts required.

Unplug the computer from the power supply before any maintenance or disassembly.
  • Unplug the computer from the power supply before any maintenance or disassembly.

  • Remove the two Phillips #2 head 5mm screws from the back side of the computer case. You only need to remove the screws that hold down the panel.

  • These screws can usually be removed by hand.

  • Be sure to wear an anti-static bracelet or use and anti-static mat to ensure important components are not damaged by static electricity.

This depends on the model of system. Some systems have a lever/latch to pull to release the cover. Many Dell and HP models use latches to open the covers (no tools required to open the system). Some systems need a screwdriver to remove the screws. Some are Phillips screws, others may be Torx.

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Next, remove the side panel of the computer case to allow access into the computer. Slide the panel towards the back of the computer and lift it up to remove.
  • Next, remove the side panel of the computer case to allow access into the computer. Slide the panel towards the back of the computer and lift it up to remove.

  • If there is a fan mounted on the side panel, make sure to unplug the cable before fully removing the panel.

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  • Push to unlatch three grey connectors on the front panel.

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  • Disconnect the front panel from the computer face.

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  • Remove four Phillips #2 head, 5mm screws holding in the fan.

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  • Slide the fan out from the side of the casing.

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  • Disconnect the power cable from the fan.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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David Lennon

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