Dell PowerEdge R450 Installation And Service Manual page 56

Figure 47. Lift the TIM break lever
Figure 48. Aligning pin 1 marks of processor with tray
NOTE: Ensure that to return the TIM break lever back to its original position.
4. Using your thumb and index finger, first hold the carrier release tab at the pin 1 connector, pull out the tip of the carrier
release tab, and then lift the carrier partially from the heat sink.
5. Repeat the procedure at the remaining three corners of the carrier.
6. After all the corners are released from the heat sink, lift the carrier from the pin 1 corner of the heat sink.
56 Installing and removing system components