1. Remove the fan connector from the fan header.
2. Turn the pushpins with a flat bladed screwdriver anticlockwise 90 degrees to release them.
   
3. Pull up the push pins.
4. Remove the fan.
   
   
5. Turn the pushpins clockwise 90 degrees to reset them.
   
6. Reinsert the fan and locate the pushpins.
   
7. Press the pushpins in the order shown to secure them.
   
8. Plug the fan connector from the fan header.

Related Topics:
How to apply Thermal Interface Material (TIM)
LGA1155 / LGA1156 Processor and Fan-heatsink integration video
Intel® Desktop Processor support resources

Disclaimer

Operating System:

OS Independent

This applies to:

Intel® Core™ i3 Desktop Processor Intel® Core™ i5 Desktop Processor Intel® Core™ i7 Desktop Processor Intel® Core™ i7 Processor Extreme Edition Intel® Core™2 Duo Desktop Processor Intel® Core™2 Extreme Processor Intel® Core™2 Quad Processor Intel® Pentium® 4 Processor Extreme Edition Intel® Pentium® 4 Processors Intel® Pentium® D Processor Intel® Pentium® Processor Extreme Edition Intel® Pentium® Processor for Desktop