Dell PowerEdge M830 Owner's Manual page 61

NOTE: You must remove the system cover to service other components inside the system.
4. Ensure that no tools or parts are left inside the blade.
Steps
1. Align the alignment guide on the system cover with the alignment guide on the chassis.
2. Lower the cover onto the chassis.
3. Slide the cover until it clicks into position.
A properly seated cover is flush with the surface of the chassis.
Figure 9. Installing the system cover
1. system cover
3. I/O connector cover (2)
Next steps
Follow the procedure listed in the After working inside your system section.
2. release button (2)
4. alignment guides on the system cover
and the chassis
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