M.2 Solid-State Drive; Memory Module - Lenovo ThinkCentre M90a Gen 3 Hardware Maintenance Manual

M.2 solid-state drive

Prerequisite
Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
Attention: The internal storage drive is sensitive. Inappropriate handling might cause damage and
permanent loss of data. When handling the internal storage drive, observe the following guidelines:
• Replace the internal storage drive only for upgrade or repair. The internal storage drive is not designed for
frequent changes or replacement.
• Before replacing the internal storage drive, make a backup copy of all the data that you want to keep.
• Do not touch the contact edge of the internal storage drive. Otherwise, the internal storage drive might get
damaged.
• Do not apply pressure to the internal storage drive.
• Do not make the internal storage drive subject to physical shocks or vibration. Put the internal storage
drive on a soft material, such as cloth, to absorb physical shocks.
For access, remove the following parts in order:
• "Computer stand" on page 52.
• "Rear I/O cover" on page 56.
• "System board shield" on page 57.
• "VESA mount bracket" on page 58.
Removal procedure
Note: A thermal pad might cover the M.2 solid-state drive. To access the M.2 solid-state drive, peel off the
thermal pad first.

Memory module

Prerequisite
Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
Ensure that you follow the installation order for memory modules shown in the following illustration.
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Chapter 6 Hardware removal and installation
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