BX900 S2 Upgrade and Maintenance Manual 93
Power supply
6.2 Installing a power supply unit
6.2.1 Required tools
● Preliminary and concluding steps: tool-less
● Replacing the fan module: tool-less
6.2.2 Preliminary steps
Before installing a power supply unit (PSU), perform the following steps:
Ê If applicable, open the rack door as described in section "Opening the rack
door" on page 48.
Ê Locate the desired system unit as described in section "Determining the
error class" on page 45.
Ê Determine the mounting bay of the new PSU using the information in section
"Cooling requirements" on page 88.
Customer Replaceable Units (CRU)
average hardware task duration: 5 minutes
average software task duration: 5 minutes