Figure 79. Installing the system batteryNext steps1. Follow the procedure listed in After working inside your system.2. Enter the System Setup to confirm that the battery is operating properly.3. Enter the correct time and date in the System Setup's Time and Date fields.4. Exit the System Setup.5. To test the newly installed battery, remove the system from the enclosure, for at least an hour.6. Reinstall the system into the enclosure, after an hour.7. Enter the System Setup and if the time and date are still incorrect, see Getting help.System boardRemoving the system boardPrerequisitesCAUTION: If you are using the Trusted Platform Module (TPM) with an encryption key, you may be promptedto create a recovery key during program or System Setup. Be sure to create and safely store this recovery key.If you replace this system board, you must supply the recovery key when you restart your system or programbefore you can access the encrypted data on your hard drives.CAUTION: Do not attempt to remove the TPM plug-in module from the system board. Once the TPM plug-inmodule is installed, it is cryptographically bound to that specific system board. Any attempt to remove aninstalled TPM plug-in module breaks the cryptographic binding, and it cannot be reinstalled or installed onanother system board.1. Follow the safety guidelines listed in Safety instructions.2. Follow the procedure listed in Before working inside your system.3. Remove the following:a. Air shroudb. Internal cooling fanc. Expansion cards, if installedd. vFlash/IDSDM moduleInstalling and removing system components 79