Do you have a question about the Lenovo 90NB and is the answer not in the manual?
Identifies and describes components on the front panel of the computer.
Identifies and describes components on the rear panel of the computer.
Provides guidance on basic Windows settings and configuration.
Explanation of Customer Replaceable Units (CRUs) and general replacement procedures.
Procedure for replacing the AC power adapter on IdeaCentre 3 07ADA05.
Procedure for removing and installing a storage drive.
Procedure for replacing the M.2 solid-state drive.
Procedure for installing and removing memory modules.
Procedure for replacing the power supply assembly.
Common questions, answers, and links to self-help resources for troubleshooting.
Essential safety precautions, emergency actions, and warnings for servicing the computer.
Safety information related to electrical connections, components like laser diodes, and audio devices.