2. If you are installing or replacing a non-hot-swap component, turn off the serverand 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.Top coverCover releaselatch4. 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 youturn on the server. Operating the server for more than 2 minutes with the topcover removed might damage server components.Removing the top-cover bracketTo remove the top-cover bracket, complete the following steps:1. Read the safety information that begins on page vii and “Working inside theserver with the power on” on page 34.2. If you are installing or replacing a non-hot-swap component, turn off the serverand all peripheral devices, and disconnect the power cords and all externalcables.3. Slide the server out of the rack until the slide rails lock into place.4. Remove the top cover (see “Removing the top cover” on page 37).5. Slide the blue latches on the top-cover bracket toward the center of the server.38 IBM System x3850 X5 and x3950 X5 Types 7145 and 7146: Installation and User’s Guide
