Figure 139. Power supply bay numbering
Watch the procedure. A video of the installation and removal process is available: 
•  YouTube: 
https://www.youtube.com/playlist?list=PLYV5R7hVcs-BXei6L6c05osQVLt4w5XYx
•  Youku: https://list.youku.com/albumlist/show/id_59636529
Procedure 
Figure 140. Installing power supply unit
Step 1.  If a power supply filler is installed in the bay, pull the filler out of the bay.
Step 2.  Align the power supply unit with the bay; then, slide the power supply unit into the bay until the 
release tab locks into place.
Step 3.  Connect the power supply unit to a properly grounded electrical socket with a power cord.
Step 4.  Make sure that the ac power LED on the power supply unit is lit, indicating that the power supply 
unit is operating correctly. 
Important: During normal operation, each power supply bay must contain either a power supply 
unit or a power supply filler for proper cooling.
After you finish 
Check the PSU LEDs to verify that the PSU is operating correctly. See Figure 9 “Power supply LEDs” on 
page 23.
Chapter 4. Hardware replacement procedures 199