Connecting Hardware Devices Cooling fans 57Cooling fansThe server contains the following cooling fans:❖ Intake fan module located in the bottom front section of the server.❖ Exhaust fan module located at the rear of the server.❖ EPS-R cage cooling fans - optional (EPS-R models only)To increase system reliability, secondary intake and exhaust fans can be installed,allowing you to create a redundant cooling configuration.The primary intake fan module and the primary exhaust fan module comprise theprimary fan configuration for this server, while the secondary intake fan module andsecondary exhaust fan module comprise the redundant fan configuration.Removing and installing an intake fanThis section provides instructions for removing and installing an intake fan.Removing an intake fan1 If the server is in operation, shut it down and remove the access panel. Forinstructions, read steps 1 through 5 in Maintenance overview on page 53.2 Remove the screw securing the intake fan module in place, then slide the modulefrom the chassis.Removing the intake fan module3 Reinstall the access panel, reconnect all signal and power cables, then turn on theserver. For instructions, read steps 7 through 10 in Maintenance overview on page53.DANGER: Removing a cooling fan while the server is on could result in electricshock, and shorten the service life of both the fan and the server.