Supermicro SuperServer 420GH-TNGR User Manual page 27

Chapter 2: Server Installation
3. After pushing the enclosure all the way into the rack, use the thumbscrew on each side
of the server to lock it into place.
Thumbscrew
Figure 2-5. Locking the Server to the Rack
Warning: Stability hazard. The rack stabilizing mechanism must be in place, or the
rack must be bolted to the floor before you slide the unit out for servicing. Failure to
stabilize the rack can cause the rack to tip over.
When initially installing the system to a rack, test that the rail locking tabs engage to
prevent the system from being overextended. Have a rack lift in place as a precaution
in case the test fails.
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