Dell PowerEdge R520 Technical Manual page 14

Security feature Description
The Trusted Platform Module (TPM) is used to generate/store keys,
protect/authenticate passwords, and create/store digital certificates. It also
TPM supports the Intel Xeon TXT functionality. TPM can also be used to enable the
BitLocker™ hard drive encryption feature in Windows Server 2008. TPM 1.2 is
supported. No TPM version is available for China or Russia.
Power-off security BIOS has the ability to disable the power button function.
Intrusion alert An internal switch is used to detect chassis intrusion.
BIOS has the ability to enter a secure boot mode through system setup. This
Secure mode mode includes the option to lock out the power and NMI switches on the
control panel or set up a system password.