152 Removing and Installing Parts3 Connect the processor fan/heat sink assembly cable to the CPU_FANsystem board connector (see "System Board Components" on page 104).4 Replace the computer cover (see "Replacing the Computer Cover" onpage 160).5 Connect your computer and devices to an electrical outlet, and turn them on.ProcessorCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions located in the Product Information Guide.Removing the Processor1 Follow the procedures in "Before You Begin" on page 99.2 Remove the computer cover (see "Removing the Computer Cover" onpage 101).CAUTION: Despite having a plastic shield, the heat sink assembly may be veryhot during normal operation. Be sure that it has had sufficient time to cool beforeyou touch it.3 Remove the processor fan/heat sink assembly from the computer (see"Removing the Processor Fan/Heat Sink Assembly" on page 150).NOTICE: Unless a new heatsink is required for the new processor, reuse theoriginal heat sink assembly when you replace the processor.