Dell R 420 Manual

2
Using The System Setup And Boot Manager
System Setup enables you to manage your system hardware and specify BIOS-level options.
The following keystrokes provide access to system features during startup:
KeystrokeDescriptionEnters the System Setup.Enters System Services, which opens the Dell Lifecycle 
Controller 2 (LC2). The Dell LC2 supports systems 
management features such as operating system  deployment, hardware diagnostics, firmware updates, and 
platform configuration, using a graphical user...

•UEFI boot mode is an enhanced 64-bit boot interface based on Unified Extensible Firmware Interface (UEFI) specifications that overlays the system BIOS.
You must select the boot mode in the Boot Mode field of the Boot Settings screen of System Setup. Once you specify the 
boot mode, the system boots in the specified boot mode and you then proceed to install your operating system from that  mode. Thereafter, you must boot the system in the same boot mode (BIOS or UEFI) to access the installed operating...

System Setup Options
System Setup Main Screen
NOTE: Press  to reset the BIOS or UEFI settings to their default settings.
Menu ItemDescriptionSystem BIOSThis option is used to view and configure BIOS settings.iDRAC SettingsThis option is used to view and configure iDRAC settings.Device SettingsThis option is used to view and configure device settings.
System BIOS Screen
NOTE: The options for System Setup change based on the system configuration.
NOTE: System Setup defaults are listed under their...

Menu ItemDescriptionSystem BIOS VersionDisplays the BIOS version installed on the system.System Service TagDisplays the system Service Tag.System ManufacturerDisplays the name of system manufacturer.System Manufacturer 
Contact InformationDisplays the contact information of the system manufacturer.
Memory Settings Screen
Menu ItemDescriptionSystem Memory SizeDisplays the amount of memory installed in the system.System Memory TypeDisplays the type of memory installed in the system.System Memory...

Menu ItemDescriptionNOTE: The QPI speed option displays only when both the processors are installed.Alternate RTID 
(Requestor 
Transaction ID) 
SettingAllows you to allocate more RTIDs to the remote socket increasing cache performance  between the sockets or work in normal mode for NUMA. By default, the 
Alternate RTID 
(Requestor Transaction ID) Setting
 is set to Disabled.
Virtualization 
TechnologyAllows you to enable or disable the additional hardware capabilities provided for virtualization.  By...

SATA Settings ScreenMenu ItemDescriptionEmbedded SATAAllows the embedded SATA to be set to Off, ATA, AHCI, or RAID mode. By default, Embedded SATA is set to 
AHCI Mode.
Port AAuto enables BIOS support for the device attached to SATA port A. By default, Port A is set to 
Auto.
Port BAuto enables BIOS support for the device attached to SATA port B. By default, Port B is set to 
Auto.
Port CAuto enables BIOS support for the device attached to SATA port C. By default, Port C is set to 
Auto.
Port DAuto...

Integrated Devices ScreenMenu ItemDescriptionIntegrated RAID 
ControllerAllows you to enable or disable the integrated RAID controller. By default, the Integrated RAID 
Controller
 option is set to Enabled.
User Accessible USB 
PortsAllows you enable or disable the user accessible USB ports. Selecting Only Back Ports On 
disables the front USB ports and selecting All Ports Off disables both front and back USB ports. 
By default, the 
User Accessible USB Ports option is set to All Ports On.
Internal USB...

Serial Communications ScreenMenu ItemDescriptionSerial CommunicationAllows you to select serial communication devices (Serial Device 1 and Serial Device 2) in the BIOS. BIOS console redirection can also be enabled and the port address used can be 
specified. By default, 
Serial Communication option is set to On without Console Redirection.
Serial Port AddressAllows you to set the port address for serial devices. By default, the Serial Port Address option 
is set to 
Serial Device 1=COM2, Serial Device...

Menu ItemDescriptionC StatesAllows you to enable or disable the processor to operate in all available power states. By default, the 
C States option is set to Enabled.
Monitor/MwaitAllows you to enable Monitor/Mwait instructions in the processor. By default, the Monitor/Mwait option is set to 
Enabled for all system profiles, except Custom.
NOTE: This option can be disabled only if the C States option in Custom mode is disabled.
NOTE: When C States is enabled in Custom mode, changing the Monitor/Mwait...

Menu ItemDescriptionIntel TXTAllows 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.
BIOS Update ControlAllows you to update the BIOS using either DOS or UEFI shell-based flash utilities. For  environments that do not require local BIOS updates, it is recommended to set this field to 
Disabled. By default, the BIOS Update...