Installing A Cmos Battery; Removing A Cpu And Heat Sink - Cisco UCS B460 M4 Installation And Service Note

Installing a CMOS Battery

Installing a CMOS Battery

All Cisco UCS blade servers use a CR2032 battery to preserve BIOS settings while the server is not installed
in a powered-on chassis. Cisco supports the industry standard CR2032 battery that is available at most
electronics stores.
Warning There is danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or
equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's
instructions.
To install or replace the battery, follow these steps:
Procedure
Step 1
Remove the existing battery:
a) Power off the blade, remove it from the chassis, and remove the top cover.
b) Push the battery socket retaining clip away from the battery.
c) Lift the battery from the socket. Use needle-nose pliers to grasp the battery if there is not enough clearance
for your fingers.
Step 2 Install the replacement battery:
a) Push the battery socket retaining clip away from where the battery fits in the housing.
b) Insert the new battery into the socket with the battery's positive (+) marking facing away from the retaining
clip. Ensure that the retaining clip can click over the top of the battery to secure it in the housing.
c) Replace the top cover.
d) Replace the blade server in the chassis.

Removing a CPU and Heat Sink

You will use these procedures to move a CPU from one server to another, to replace a faulty CPU, or to
upgrade from one CPU to another.
Note The CPU pick and place tool is required to prevent damage to the connection pins between the motherboard
and the CPU. Do not attempt this procedure without the required tool, which is included with each CPU option
kit.
Procedure
Step 1
Unscrew the four captive screws securing the heat sink to the motherboard.
Cisco UCS B260 M4 and B460 M4 Blade Server Installation and Service Note for Servers with E7 v3 and E7 v2 CPUs
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Servicing the Blade Server