Delidding a CPU requires precision and care.deliddedtech<span style="font-family: Arial; font-size: 10pt;"> </span>The process generally involves using a specialized tool to separate the heat spreader from the CPU die. During this procedure, it's important to avoid damaging the delicate components underneath. After the lid is removed, the old thermal paste is cleaned off, and a higher-quality thermal compound (such as liquid metal) is often applied to improve heat transfer between the CPU die and the heat spreader.