Lenovo ThinkCentre M91p User Manual page 70

4. Locate the card reader drive bay. See "Locating internal drives" on page 13.
Note: You might have to remove the metal cover of the card reader drive bay.
5. Install the new card reader into the card reader bracket. Then install the two screws to secure the
card reader to the bracket.
6. Install the card reader bracket to the chassis. Then push the bracket to the left to align the screw hole in
the bracket with the corresponding hole in the chassis.
Figure 39. Installing the card reader
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ThinkCentre User Guide