GIGABYTE GS-R12T4H2-RH - Manual (Page 28)

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GS-R12T4H2-RH Rack Mount Server
Replacing the Chassis Cover
Step 1 Replace the cover, and slide the chassis in the direction of the arrow  until the locking
button clicks into place.
Step 2 Tighten the securing screw  on top of the server.until the locking button clicks into place.