System Housing2-13Right PanelThe power subsystem fills up most of the rear right panel. It consistsof a power backplane board and a metal rack that holds up to three430-watt redundant power supply modules. A fan module should beinstalled whenever a power supply is removed to provide the systemwith regular cooling. See section 2.5 for details on the powersubsystem.The lower section allows installation of a SCSI backplane board and aset of eight hot-swappable SCSI drive trays.Here is a diagram of the components that reside on the right panel.Power SupplyModule BaysSCSI Drive TrayBaysSCSI BackplaneBoardPower SupplyBackplane Board