Removing and Installing Parts 1596 Connect the processor fan cable to the system board (see "System BoardComponents" on page 102).NOTICE: Ensure that the fan is correctly seated and secure.7 Replace the cover (see "Replacing the Computer Cover" on page 164).8 Connect your computer and devices to an electrical outlet, and turnthem on.Chassis FanCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in the Product Information Guide.CAUTION: To guard against electrical shock, laceration by moving fan blades, orother unexpected injuries, always unplug your computer from the electrical outletbefore opening the cover.CAUTION: The heat sink assembly, power supply, and other components may bevery hot during normal operation. Be sure that they have had sufficient time to coolbefore you touch them.NOTICE: To prevent static damage to components inside your computer,discharge static electricity from your body before you touch any of your computer’selectronic components. You can do so by touching an unpainted metal surface onthe computer chassis.