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Replacing a memory module
Before you start, print these instructions.
Prerequisites for the procedure
Note: The operating speed of the memory module has dependency on the system conguration. In some
conditions, the memory module in your computer might not be able to operate at the maximum speed.
Attention: Before you start installing a memory module, touch a metal table or a grounded metal object. This
action reduces any static electricity from your body. The static electricity could damage the memory module.
To replace a memory module, refer to the instructions for the computer.
• “Lenovo B475e” on page 43
• “Lenovo B575e” on page 44
Lenovo B475e
To replace a memory module, do the following:
1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait
three to ve minutes to let the computer cool.
2. Close the computer display, and turn the computer over.
3. Remove the battery. See “Replacing the battery” on page 35.
4. Loosen or remove the screws 1 , and then remove the cover 2 .
1a
2
1b
1a
5. If one memory modules is already in the memory slot, press out on the latches on both edges of the
socket at the same time
3 , and then remove the memory module 4 to make room for the new one.
Save the removed memory module for future use.
3
4
3
Chapter 7. Replacing devices 43