Lenovo B550 User Manual page 40

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.
AC adapter
Power cord for AC
adapter
Battery
Bottom access doors
Hard disk drive
Memory
Optical drive
32
Setup Poster
Self-service CRUs
O
O
O
User Guide
O
O
O
O
O