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How Do I Replace the Fan on an Intel® Socket 775

October 04, 2011  |  Difficulty: Hard

How to remove the old CPU cooler from Intel® Socket 775 and replace it with a new one

An Intel® socket 775, also known as a Socket T, is probably the most common processor socket in modern computers. Sometimes, people need to change the cooling system of their CPU. The most common reason for replacement is to make it cooler, or problems with how loud it is. The article that focuses on building a quiet PC mentions the benefits of a quieter computer. Problems with heat can occur if the air flow isn’t ideal. You can avoid this by using a better CPU fan, as well. If you have already bought a new fan, the instructions below will focus on removing the old one and replacing it with a new one.

Removing the current fan:

  1. First, unplug your computer from electricity.
  2. Then, open the PC’s case so you are able to see the fan.
  3. Unplug the 3 or 4 wire cables between the CPU fan and motherboard.
  4. You will see 4 knobs with “arrow” symbols. Get a screwdriver and turn the knobs following the arrow’s direction.
  5. Now, you can carefully pull the cooler from your motherboard.
  6. To finish the operation, wipe the CPU surface with a dry cloth.

Placing the new fan:

  1. Be sure that your CPU surface is clean.
  2. Remove all the packaging and check the fan to see if its heatsink is covered by a thermal paste. If not, please get a thermal paste tube and create a layer of it on your CPU’s surface.
  3. Put the cooler on the socket so the knobs can be inserted into the holes in your motherboard.
  4. Carefully push the knobs through one by one. You should hear a click sound.
  5. Plug the 3 or 4 wired cables from the fan into your motherboard.

Tips and tricks:

  • When you place the new fan, it is recommended that you push the knobs all the way into the motherboard’s holes to prevent one sided pressure.
  • Before you cover the PC back up with its case, turn on your computer to ensure it functions properly.


  • Never use force if you are removing or installing components into computer slots.
  • Be careful when manipulating with a screwdriver. Avoid touching the motherboard with it.

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