Replacing The Memory Module - Lenovo 300 Maintenance Manual

c. Secure the new converter board with the two screws.
Step 11. Reattach the rear cover, hinge, foot cover and stand base.

Replacing the 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 flat 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.
Step 1. Remove any media (disks, CDs, DVDs, 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 stand base. Refer to "Removing the stand base".
Step 5. Remove the foot cover. Refer to "Removing the foot cover".
Step 6. Remove the hinge. Refer to "Removing the hinge".
Step 7. Remove the rear cover. Refer to "Removing the rear cover".
Step 8. Remove the EMI cover. Refer to "Removing the EMI cover".
Step 9. 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.
Step 10. To install the new memory module:
a. Align the new memory module with the memory socket, then insert it and push down on the
top edge. Make sure the latches lock the memory module in place.
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Lenovo All-In-One 300 Computer Hardware Maintenance Manual