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Cisco UCS S3260 Storage Server Chassis Installation and Service Guide
Chapter 3 Maintaining the System
Installing or Replacing System Components
Replacing a Power Supply
The system requires four power supplies, which are redundant as 3+1.
Note Do not mix power supply types in the server. Both power supplies must be identical.
This section contains these procedures:
• Replacing an AC Power Supply, page 3-33
• Installing a DC Power Supply (First-Time Installation), page 3-34
• Replacing a DC Power Supply, page 3-35
• See also Power Specifications, page A-3 for power supply specifications.
• See also Rear-Panel LEDs and Buttons, page 3-4 for information about power supply LEDs.
Replacing an AC Power Supply
To replace or install an AC power supply, follow these steps:
Note You do not have to power off the system to replace up to one power supply because they are redundant
as 3+1.
Step 1 Remove the power supply that you are replacing or a blank panel from an empty bay (see Figure 3-16):
a. Remove the power cord from the power supply that you are replacing.
b. Grasp the power supply handle while pinching the release lever toward the handle.
c. Pull the power supply out of the bay.
Step 2 Install a new power supply:
a. Grasp the power supply handle and insert the new power supply into the empty bay.
b. Push the power supply into the bay until the release lever locks.
c. Connect the power cord to the new power supply.
d. If you powered off the system, press and hold the system Power button for four seconds to return
the system to main power mode.
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