Dell R820 owner manual System Security Screen

Menu Item Description

NOTE: When C States is enabled in Custom mode, changing the Monitor/Mwait setting does not impact system power/performance.

Memory Patrol Scrub Allows you to set the memory patrol scrub frequency. By default, the Memory Patrol Scrub option is set to Standard.

Memory Refresh Rate Allows you to set the memory refresh rate. By default, the Memory Refresh Rate option is set to 1x.

Memory Operating Allows you to set the DIMM voltage selection. When set to Auto, the system automatically sets

Voltagethe system voltage to the optimal setting based on the DIMM capacity and the number of DIMMs installed. By default, the Memory Operating Voltage option is set to Auto.

Collaborative CPU When set to enabled, the CPU power management is controlled by the OS DBPM and the Performance Control System DBPM (DAPC). By default, the option is set to Disabled

System Security Screen

Menu Item	Description
Intel AES-NI	The Intel AES-NIoption improves the speed of applications by performing encryption and
	decryption using the Advanced Encryption Standard Instruction Set and is set to Enabled by
	default.
System Password	Allows you to set the system password. This option is set to Enabled by default and is read-only
	if the password jumper is not installed in the system.
Setup Password	Allows you to set the setup password. This option is read-only if the password jumper is not
	installed in the system.
Password Status	Allows you to lock the system password. By default, the Password Status option is set to
	Unlocked.
TPM Security	Allows you to control the reporting mode of the Trusted Platform Module (TPM). By default, the
	TPM Security option is set to Off. You can only modify the TPM Status, TPM Activation , and
	Intel TXT fields if the TPM Status field is set to either On with Pre-boot Measurements or On
	without Pre-boot Measurements.
TPM Activation	Allows you to change the operational state of the TPM. By default, the TPM Activation option is
	set to No Change.

TPM Status TPM Clear

Intel TXT

Displays the TPM status.

CAUTION: Clearing the TPM results in loss of all keys in the TPM. The loss of TPM keys may affect booting to the operating system.

Allows you to clear all the contents of the TPM. By default, the TPM Clear option is set to No.

Allows you enable or disable Intel Trusted Execution Technology. To enable Intel TXT, Virtualization Technology must be enabled and TPM Security must be Enabled with Pre-boot measurements. By default, the Intel TXT option is set to Off.

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