Lenovo ThinkCentre M90t User Manual page 72

• 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.
Replacement procedure
1. Remove the computer cover. See "Computer cover" on page 42.
2. Remove the optical drive. See "Optical drive" on page 43.
3. Remove the front bezel. See "Front bezel" on page 46.
4. Remove the optical drive cage. See "Optical drive cage" on page 63.
5. Remove the 3.5-inch secondary storage drive with the bracket from the 3.5-inch secondary storage
drive cage.
6. Remove the 3.5-inch secondary storage drive from the bracket.
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M90t User Guide