Lenovo 30FM002VUS User Manual

Replacement procedure of the 125-watt heat-sink-and-fan assembly1. Remove the four screws that secure the heat-sink-and-fan assembly to the chassis. Then, follow thefollowing sequence to loosen the four screws that secure the heat-sink-and-fan assembly to the systemboard. Then, lift the heat-sink-and-fan assembly off the system board.• Partially loosen screw 2a , fully loosen screw 2b , and then fully loosen screw 2a .• Partially loosen screw 2c , fully loosen screw 2d , and then fully loosen screw 2c .Notes:• Carefully loosen the four screws to avoid any possible damage to the system board. The four screwscannot be removed from the heat-sink-and-fan assembly.• You might have to gently twist the heat-sink-and-fan assembly to free it from the microprocessor.• Do not touch the thermal grease while handling the heat-sink-and-fan assembly.• In case you need to remove the chassis beam as well, ensure that the 125-watt heat-sink-and-fanassembly has been removed before you remove the chassis beam.Chapter 8. CRU replacement 65