Western Digital WD Sentinel RX4100 User Manual - Manual (Page 106)

APPENDIX
100 WD SENTINEL RX4100
ADMINISTRATOR AND MAINTENANCE GUIDE
Replacing the Internal Power Supply
When the internal power supply requires replacement, you will receive an e-mail Alert
indicating that there is a problem.
The power supply in the WD Sentinel server is “cold swappable.” This means that the WD
Sentinel server must be shut down prior to your power supply replacement. To shut down
your WD Sentinel server, follow the steps outline in “Shutting Down the Server” on page 45.
What you’ll Need:
 Phillips screwdriver
 Replacement internal power supply
Replacing the Internal Power Supply
1. Shut down the server.
2. Disconnect all external connections, including the A/C power cord.
3. Follow the steps outlined in “Removing the Unit Cover” on page 98.
4. Locate the power supply in the right corner of the unit (Figure 8).
Figure 8. Locate power supply
5. Remove two (2) screws holding the power supply to the bottom of the unit (Figure 9).
6. On the back of the unit, remove two (2) screws holding the power supply in place
(Figure 9).
Figure 9. Remove bottom and back power supply screws