IBM System x3650 M4 BD Type 5466 Installation And Service Manual page 272

Figure 183. System board installation
Figure 184. System board installation
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System x3650 M4 BD Type 5466: Installation and Service Guide
3. Gently push the system board by holders to insert the external input/output
connectors into their respective holes in the chassis.
4. Install the screws to secure the system board to the chassis.