Before beginning installation

This section describes how to change a power supply/fan assembly for a unit with a port-side air exhaust. A new power supply/fan assembly field replaceable unit (FRU) must have the same part number (P/N) as the FRU being replaced. The manufacturing P/N is located on the top of the power supply/fan assembly.

Using the same P/N for all power supply/fan assembly FRUs ensures identical airflow for all the FRUs on the chassis. The power supply/fan assembly unit handle color is also an indicator of the model type. The handles for the installed FRUs must be the same color.

Figure 33 Power supply and fan assembly with part number