Lenovo ThinkCentre M83z Maintenance Manual page 96

11. Position the new rear I/O assembly over the rear I/O assembly connector on the system board so
that the notch on the rear I/O assembly aligns with the key in the connector. Then, insert the rear
I/O assembly into the connector until it is seated firmly and all the screw holes
corresponding holes in the chassis.
Figure 24. Installing the rear I/O assembly
12. Install the five screws to secure the rear I/O assembly to the chassis.
Figure 25. Installing the five screws to secure the rear I/O assembly
13. Install the system-board shield. See "Removing and installing the system-board shield" on page 86.
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ThinkCentre M83z Hardware Maintenance Manual
1 align with the