Lenovo C220, Hardware Maintenance Manual

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Replacing a memory module
Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note: It may be helpful to place the computer face-down on a soft at surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the touch screen from scratches
or other damage.
To replace a memory module
Step 1. Remove any media (disks, CDs, or memory cards) from the drives, shut down the operating
system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to Left and right view
and Rear view for help with locating the various connectors.
Step 4. Remove the memory cover as shown.
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2
Step 5. Push out the latches on both sides of the memory socket to release the memory module and gently
pull the memory module upward to remove it from its socket. All of the memory modules can
be removed using the same procedure.
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Lenovo C2/C3 Hardware Maintenance Manual