def _get_tpm_capability(self):
        """Retrieves if server is TPM capable or not.

        :returns True if TPM is Present else False
        """
        tpm_values = {"NotPresent": False,
                      "PresentDisabled": True,
                      "PresentEnabled": True}
        try:
            tpm_state = self._get_bios_setting('TpmState')
        except exception.IloCommandNotSupportedError:
            tpm_state = "NotPresent"
        tpm_result = tpm_values[tpm_state]
        return tpm_result