Removing the top coverNote: Before you install optional hardware devices, make sure that the server isworking 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 otherwiseworking correctly. If the server is not working correctly, see the ProblemDetermination and Service Guide on the IBM Documentation CD for informationabout how to run diagnostics.Important: The server automatically powers off when the top cover is removed.To remove the top cover, complete the following steps:1. Read the safety information that begins on page v and “Installation guidelines”on page 28.2. Turn off the server and all attached peripheral devices. Disconnect all powercords; then, disconnect all external signal cables from the server.3. Slide the server out of the rack until the slide rails lock into place.4. Loosen the two thumbscrews that secure the cover to the chassis.ThumbscrewCover5. Press on the two blue grip points and slide the cover toward the rear; then, liftthe cover off the server. Set the cover aside.Removing the top-cover fan doorAttention: You must turn off the server before you remove or install anon-hot-swap fan.To remove the top-cover fan door, complete the following steps:1. Read the safety information that begins on page v and “Installation guidelines”on page 28.2. If you are removing or replacing a non-hot-swap fan, turn off the server and allattached peripheral devices. Disconnect all power cords; then, disconnect allexternal signal cables from the server.3. Slide the server out of the rack until the slide rails lock into place.4. Press and rotate up the release latches.Chapter 2. Installing optional devices 37
