Lenovo ThinkCentre M93/p User Manual page 69

Figure 35. Assembling the front USB assembly
6. Install the new front USB assembly into the card reader drive bay until it snaps into position. Then,
push the new front USB assembly to the left until the screw hole in the metal bracket of the front USB
assembly is aligned with the corresponding hole in the chassis.
Figure 36. Installing the front USB assembly
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Chapter 5 Installing or replacing hardware