Removing the top cover

Note: Before you install optional hardware devices, make sure that the server is working correctly. Start the server, and make sure that the operating system starts, if an operating system is installed, or that a 19990305 error code is displayed, indicating that an operating system was not found but the server is otherwise working correctly. If the server is not working correctly, see the Problem Determination and Service Guide on the IBM Documentation CD for information about how to run diagnostics.

To remove the top cover, complete the following steps:

1.Read “Safety” on page v and “Working inside the server with the power on” on page 40.

2.If you are installing or replacing a non-hot-swap component, turn off the server and all attached peripheral devices. Disconnect all power cords; then, disconnect all external signal cables from the server.

3.Slide the server out of the rack until the slide rails lock into place.

Cover release latch

Top cover

4.Lift the cover-release latch. The cover slides to the rear approximately 13 mm (0.5 inch). Lift the cover off the server.

Attention: For proper cooling and airflow, replace the top cover before you turn on the server. Operating the server for more than 2 minutes with the top cover removed might damage server components.