HP ProLiant SL2x170z G6 Server Maintenance And Service Manual page 52

To install the power supply:
Pull the power blank out of the power cage.
1.
Figure 40 Removing the power blank
Align the power supply cage connector with the open slot of power supply.
2.
Slide the power supply into the power supply bay until it stops.
3.
Figure 41 Installing the power supply
To remove the power supply:
Press the blue colored handle.
1.
Slide the power supply out of the power supply bay.
2.
Removal and replacement procedures 52