Replacing the system boardThis information provides instructions on how to replace the system board.About this taskNote:v When you reassemble the components in the server, be sure to route all cablescarefully so that they are not exposed to excessive pressure and so that they donot get pinched when you reinstall the system board.v When you replace the system board, you must either update the server with thelatest firmware or restore the pre-existing firmware that the customer provideson a diskette or CD image. Make sure that you have the latest firmware or acopy of the pre-existing firmware before you proceed. See “Updating thefirmware” on page 137 and “Updating the Universal Unique Identifier andDMI/SMBIOS data” on page 158 for more information.Attention: Installing the wrong firmware or device-driver update might causethe server to malfunction. Before you install a firmware or device-driver update,read any readme and change history files that are provided with thedownloaded update. These files contain important information about the updateand the procedure for installing the update, including any special procedure forupdating from an early firmware or device-driver version to the latest version.v Reactivate any Features on Demand features. Instructions for automating theactivation of features and installing activation keys is in the IBM System xFeatures on Demand User’s Guide. To download the document, go tohttp://www.ibm.com/systems/x/fod/, log in, and click Help.Important: Some cluster solutions require specific code levels or coordinated codeupdates. If the device is part of a cluster solution, verify that the latest level ofcode is supported for the cluster solution before you update the codeTo install the system board, complete the following steps:Procedure1. Read the safety information that begins on page “Safety” on page vii and“Installation guidelines” on page 35.2. Align the system board with the slots on the side of the chassis and lower theright side into the chassis first; then, lower the other side of the system boardinto the chassis.Chapter 6. Removing and replacing components 317
