Lenovo B550 Notebook - Manual (Page 40)

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Chapter 6. Upgrading and replacing devices
The following table provides a list of CRUs (Customer Replaceable Units) for your computer
and tells where to find the replacement instructions.
Setup Poster User Guide
Self-service CRUs
AC adapter O
Power cord for AC
adapter
O
Battery O O
Bottom access doors O
Hard disk drive O
Memory O
Optical drive O