3-10
Cisco UCS C460 Server Installation and Service Guide
OL-22326-01
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Replacing Power Supplies
The server can have two or four power supplies. Four power supplies are required for four-CPU
configurations.
The qualified and supported part numbers for this component are subject to change over time. For the most
up-to-date list of replaceable components, see the following URL and then scroll to
Technical Specifications
:
http://www.cisco.com/en/US/products/ps10493/products_data_sheets_list.html
This section contains the following topics:
•
Replacement Procedure, page 3-10
•
Power Supply Cold Redundancy, page 3-11
Replacement Procedure
To replace or install a power supply, follow these steps:
Note
If you have ordered a server with power supply redundancy (at least four power supplies), you do not
have to power off the server to replace power supplies. Also see the note below about 1+1 redundancy.
Step 1
Remove the power supply that you are replacing or a blank panel from an empty bay. See
Figure 3-6
:
a.
Do one of the following actions:
–
If your server has only two power supplies, shut down and power off the server as described in
the
“Shutting Down and Powering Off the Server” section on page 3-6
. See the following note.
Note
You can use 2 power supplies with a 2-CPU configuration. In this case, 1+1 redundancy is
supported only if your server’s overall power consumption can be supported by a single 850W
power supply during the failure and hot-swap. For more information about your server’s power
consumption, consult with your Cisco sales representative or use the power calculator accessible
at the Unified Computing System Partner Resource Center:
http://www.ciscoprc.com/resourcelib.asp?id=937
–
If your server has four power supplies, you do not have to shut down the server.
b.
Remove the power cord from the power supply that you are replacing.
a.
Grasp the power supply handle while squeezing the release lever towards the handle.
b.
Pull the power supply out of the slot.
Step 2
Install a new power supply:
a.
Grasp the power supply handle and insert the power supply into the power supply bay.
b.
Push the power supply into the bay until the release lever locks.
c.
Replace the power cord to the new power supply.
d.
Press the
Power
button to return the server to main power mode.
