Lenovo ThinkSystem ST45 V3 - Page 140

Figure 110. Installing the system board into the chassis
Step 2. Secure the system board to the chassis with nine screws in the sequence shown in the illustration
below.
Figure 111. System-board screws installation sequence
After you finish
Note: Make sure the CMOS battery is installed on the system board. See
“Install the CMOS battery
(CR2032)” on page 36
.
1. Install the front I/O bracket.
a.
There is a small tab on the right side of the front I/O bracket. Place the tab behind the front I/O
bracket slot on the chassis.
b.
Align the guide hole and screw hole on the front I/O bracket with the guide pin and screw slot on
the chassis; then, install the front I/O bracket to the chassis.
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ThinkSystem ST45 V3 User Guide