User's Manual

Trusted Platform Module (TPM) and BitLocker Support 61
NOTE: For mass BIOS updates, create a script that disables BitLocker, installs the
update, reboots the system and then re-enables BitLocker. For one-to-one Dell
Update Package (DUP) deployments, manually disable BitLocker and then
re-enable it after rebooting your system.
NOTE: In addition to BIOS DUP, execution of firmware DUP for U320, Serial
Attached SCSI (SAS) 5, SAS 6, Expandable RAID Controller (PERC) 5, PERC 6, and
Cost Effective RAID Controller (CERC) 6 controllers is blocked on a system having a
TPM version 1.2 chip, TPM Security set at
ON with pre-boot measurement, and
TPM Activation set at
Enabled if you enable BitLocker (TPM or TPM with USB or
TPM with PIN).