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Installing or Replacing System Components
Replacing a Power Supply
The system can have two or four power supplies. When four power supplies are installed they are
redundant as 2+2.
To replace or install a power supply, follow these steps:
If you have ordered a system with power supply redundancy (four power supplies), you do not have to
Note
power off the system to replace up to two power supplies because they are redundant as 2+2.
Remove the power supply that you are replacing or a blank panel from an empty bay (see
Step 1
a.
b.
c.
d.
Install a new power supply:
Step 2
a.
b.
c.
d.
Figure 3-18
1
Cisco UCS C3160 Rack Server Installation and Service Guide
3-28
Perform one of the following actions:
If your system has only two power supplies, shut down and power off the system as described
–
in the
"Shutting Down and Powering Off the System" section on page
If your system has four power supplies, you do not have to power off the system.
–
Remove the power cord from the power supply that you are replacing.
Grasp the power supply handle while pinching the release lever towards 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 powered off the system, press and hold the system Power button for four seconds to return
the system to main power mode.
Removing and Replacing Power Supplies
HDD 57
HDD 58
SIOC 1
PSU 1
PSU 2
1
2
Power supply release lever
HDD 59
HDD 60
SIOC 2
SSD 1
SSD 2
PSU 3
2
Power supply handle
Chapter 3
Maintaining the System
Figure
3-18):
3-9.
PSU 4
OL-32062-01
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