Trusted Platform ModuleThe Trusted Platform Module (TPM) is a dedicated microprocessor designed to secure hardware by integratingcryptographic keys into devices. Software can use a TPM to authenticate hardware devices.Because each TPM chip contains a unique and secret RSA key embedded during the TPM's manufacture, the TPM iscapable of performing platform authentication.The TPM must be replaced only while installing a new system board.Upgrading the Trusted Platform ModuleBefore you beginl Follow all safety guidelines.l Ensure that your operating system supports the version of the TPM being installed.l Ensure that you download and install the latest BIOS firmware on your system.l Ensure that the BIOS is configured to enable UEFI boot mode.About this taskCAUTION If you are using the Trusted Platform Module (TPM) with an encryption key, you may be prompted tocreate a recovery key during program or System Setup. Ensure that you 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 After the TPM plug-in module is installed, it is cryptographically bound to that specific system board.Any attempt to remove an installed TPM plug-in module breaks the cryptographic binding, the removed TPMcannot be reinstalled or installed on another system board.Initialize the TPM for BitLocker usersProcedure1. Initialize the TPM.For more information, see https://technet.microsoft.com/en-us/library/cc753140.aspx.The TPM Status changes to Enabled, Activated.Initialize the TPM 1.2 for TXT usersProcedure1. While booting the system, press F2 to enter System Setup.2. In the System Setup Main Menu screen, click System BIOS > System Security Settings.3. From the TPM Security option, select On with Pre-boot Measurements.4. From the TPM Command option, select Activate.5. Save the settings.6. Restart the system.7. Enter System Setup again.8. On the System Setup Main Menu screen, click System BIOS > System Security Settings.9. From the Intel TXT option, select On.Reference material44 R740xd Owner's Guide