Cisco UCS B460 M4 Note d'installation et d'entretien - Page 28

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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.

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

Servicing the Blade Server