User's Manual

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 the 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).