Cisco UCS C220 M4 Maintaining The Server page 64

Installing or Replacing Server Components
Replacing Power Supplies
The server can have one or two power supplies. When two power supplies are installed they are
redundant as 1+1.
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•
•
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If you have ordered a server with power supply redundancy (two power supplies), you do not have to
Note
power off the server to replace power supplies because they are redundant as 1+1.
Do not mix power supply types or wattages in the server.
Note
Replacing an AC Power Supply
Remove the power supply that you are replacing or a blank panel from an empty bay (see
Step 1
a.
b.
c.
d.
Step 2 Install a new power supply:
a.
b.
c.
d.
Cisco UCS C220 M4 Server Installation and Service Guide
3-64
Replacing an AC Power Supply, page 3-64
Installing a DC Power Supply (UCSC-PSUV2-1050DC), page 3-65
Installation Grounding, page 3-66
See also Power Specifications, page A-3
See also Rear Panel LEDs and Buttons, page 3-5
Perform one of the following actions:
– If your server has only one power supply, shut down and power off the server as described in
the "Shutting Down and Powering Off the Server" section on page
If your server has two power supplies, you do not have to shut down the server.
–
Remove the power cord from the power supply that you are replacing.
Grasp the power supply handle while pinching the release lever toward the handle.
Pull the power supply out of the bay.
Grasp the power supply handle and insert the new power supply into the empty bay.
Push the power supply into the bay until the release lever locks.
Connect the power cord to the new power supply.
If you shut down the server, press the Power button to return the server to main power mode.
for more information about the power supplies.
for information about the power supply LEDs.
Chapter 3 Maintaining the Server
Figure 3-32):
3-8.
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