Remove the Server Top Cover
If you remove the top cover without first removing the AC power cords, then not
only will the server host shut down, but also this condition will be flagged as a
system fault (that is, the fault LEDs will light).
Servicing some components requires that the top cover be removed.
Ensure that AC power cords are disconnected from the server power
Unlatch the top cover .
Press the green release button on the top of the server cover.
While pressing the top cover release button, slide the cover toward the rear of
the server .
If necessary, open the fan assembly door.
Lift up and remove the top cover .