Lenovo Flex System x220, Installation And Service Manual

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Step 3. Locate the CMOS battery socket on the system board (see “System-board connectors” on
page 17).
Step 4. Orient the CMOS battery so that the positive (+) side faces in toward the center of the compute
node.
Step 5. Pivot the CMOS battery so that you can insert it into the bottom of the socket.
Step 6. As you slide the CMOS battery into place, press the top of the CMOS battery into the socket.
Step 7. If you removed a cover from the CMOS battery, replace the cover.
After you install the CMOS battery, complete the following steps:
1. Install the cover onto the compute node (see “Installing the compute node cover” on page 644 for
instructions).
2. Install the compute node into the chassis (see “Installing a compute node in a chassis” on page 639
for instructions).
3. Turn on the compute node, start the Setup utility, and reset the configuration (see “Using the Setup
utility” on page 24 for instructions).
Removing a DIMM
Use this information to remove a dual inline memory module (DIMM).
Before you remove a DIMM, complete the following steps:
1. Read “Safety” on page iii and “Installation guidelines” on page 637.
2. If the compute node is installed in an Flex System chassis, remove it (see “Removing a compute node
from a chassis” on page 639 for instructions).
3. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with
the bezel pointing toward you.
After you install or remove a DIMM, you must change and save the new configuration information by using
the Setup utility. When you turn on the compute node, a message indicates that the memory configuration
has changed. Start the Setup utility and select
Save Settings (see “Using the Setup utility” on page 24
for more information) to save changes.
To remove a DIMM, complete the following steps.
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Flex System x220 Compute Node Installation and Service Guide