The chassis type is also important as it defines the housing of the heat sink assembly and compatibility with the system.
This large amount of heat may be harmful for the proper functioning of the system. Similarly, the type of processor also determines what heat sink would go with it. In order to buy the right heat sink / fan for your system, we recommend that you use the Service Tag look up feature in the Parts For Your Dell™ tool. Dell Heat Sink for R740/R740XD,125W or lower CPU (low profile, low cost with GPU or MB),CK The heat sinks and the fans are responsible for dissipating this heat and maintaining the safe temperature limits.