U330 User Guide V1.0
Page 121
.... Examples of these types of CRUs include the notebook main battery, an optical drive, a hard-disk drive, and an extended battery. External CRUs are accessible only by a Lenovo service technician during the warranty period. However, both internal and external CRUs are safe for replacing all external CRUs. Examples of these types of these...
.... Examples of these types of CRUs include the notebook main battery, an optical drive, a hard-disk drive, and an extended battery. External CRUs are accessible only by a Lenovo service technician during the warranty period. However, both internal and external CRUs are safe for replacing all external CRUs. Examples of these types of these...