HP ProLiant ML570 G4 Server - Manual (Page 63)

Hardware options installation 63
2. Install the redundant hot-plug power supply.
3. Connect the power cord to the redundant power supply.
4. Secure the power cords to the retaining clip (" Setting up a tower server " on page 33 ).
5. Connect the power cord to the power source.
6. Be sure that the power supply LED is green.
7. Be sure that the front panel external health LED is green (" Front panel LEDs and buttons " on page 8 ).
IMPORTANT: For maximum server availability, be sure that the two power supplies are powered by
separate AC power sources.
NOTE: If the server will be shipped to another location after configuration, install a shipping screw into
each power supply.
Redundant hot-plug fans
The server supports redundant hot-plug fans to provide proper airflow to the system if a primary fan fails.
In the standard configuration, primary fans 2, 4, and 6 cool the server.
For the redundant configuration, fans 1, 3, and 5 are added to back up the primary fans. This
configuration allows the server to continue operation in non-redundant mode if a fan failure occurs.
For full redundancy, all fans must be installed.
For fan locations, refer to "Hot-plug fans (on page 21 )."
Installing hot-plug fans
WARNING: To prevent personal injury from hazardous energy:
• Remove watches, rings, or other metal objects.
• Use tools with insulated handles.
• Do not place tools or metal parts on top of batteries.
1. Do one of the following:
— Unlock and remove the bezel ("
Unlock and remove the tower bezel " on page 25 ).
— Extend the server from the rack (on page 23 ).