Latitude 5420 Service Manual

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System setup options

NOTE:Depending on your computer and its installed devices, the items listed in this section may or may not appear.

Table 1. System setup options—System information menu
The following table describes the System information menu options in the System setup program.
Overview
	Latitude 5420
	BIOS Version	Displays the BIOS version number.
	Service Tag	Displays the Service Tag of the computer.
	Asset Tag	Displays the Asset Tag of the computer.
	Manufacture Date	Displays the manufacture date of the computer.
	Ownership Date	Displays the ownership date of the computer.
	Express Service Code	Displays the express service code of the computer.
	Ownership Tag	Displays the Ownership Tag of the computer.
	Signed Firmware Update	Displays whether the Signed Firmware Update is enabled on your computer.
	Battery Information
	Primary	Displays that battery is primary.
	Battery Level	Displays the battery level of the computer.
	Battery State	Displays the battery state of the computer.
	Health	Displays the battery health of the computer.
	AC Adapter	Displays whether the AC adapter is connected or not.
	Processor Information
	Processor Type	Displays the processor type.
	Maximum Clock Speed	Displays the maximum processor clock speed.
	Minimum Clock Speed	Displays the minimum processor clock speed.
	Current Clock Speed	Displays the current processor clock speed.
	Core Count	Displays the number of cores on the processor.
	Processor ID	Displays the processor identification code.
	Processor L2 Cache	Displays the processor L2 Cache size.
	Processor L3 Cache	Displays the processor L3 Cache size.
	Microcode Version	Displays the microcode version.
	Intel Hyper-Threading Capable	Displays whether the processor is Hyper-Threading (HT) capable.
	64-Bit Technology	Displays whether 64-bit technology is used.
	Memory Information
	Memory Installed	Displays the total computer memory installed.
	Memory Available	Displays the total computer memory available.
	Memory Speed	Displays the memory speed.
	Memory Channel Mode	Displays single or dual channel mode.
	Memory Technology	Displays the technology used for the memory.
	DIMM_SLOT B	Displays the DIMM B memory size.
	DIMM_SLOT A	Displays the DIMM A memory size.
	Devices Information
	Panel Type	Displays the Panel Type of the computer.
	Video Controller	Displays the video controller type of the computer.
	Video Memory	Displays the video memory information of the computer.
	Wi-Fi Device	Displays the wireless device information of the computer.
	Native Resolution	Displays the native resolution of the computer.
	Video BIOS Version	Displays the video BIOS version of the computer.
	Audio Controller	Displays the audio controller information of the computer.
	Bluetooth Device	Displays the Bluetooth device information of the computer.
	LOM MAC Address	Displays the LAN On Motherboard (LOM) MAC address of the computer.
	Pass Through MAC Address	Displays the pass through MAC address of the computer.
	Cellular Device	Displays the M.2 PCIe SSD information of the computer.

Table 2. System setup options—Boot Configuration menuThe following table describes the Boot Configuration menu options in the system setup program.
Boot Configuration
	Boot Sequence
	Boot mode	Displays the boot mode.
	Boot Sequence	Displays the boot sequence.
	Secure Digital (SD) Card Boot	Enable or disable the SD card read-only boot. By default, the Secure Digital (SD) Card Boot option is not enabled.
	Secure Boot
	Enable Secure Boot	Enable or disable the secure boot feature. By default, the option is enabled.
	Secure Boot Mode	Enable or disable to change the secure boot mode options. By default, the Deployed Mode is enabled.
	Expert Key Management
	Enable Custom Mode	Enable or disable custom mode. By default, the custom mode option is not enabled.
	Custom Mode Key Management	Select the custom values for expert key management.

Table 3. System setup options—Integrated Devices menu The following table describes the Integrated Devices menu options in the system setup program.
Integrated Devices
	Date/Time	Displays the current date in MM/DD/YYYY format and current time in HH:MM:SS AM/PM format.
	Camera	Enables or disable the camera. By default, the Enable Camera option is selected
	Audio
	Enable Audio	Enable or disable the integrated audio controller. By default, all the options are enabled.
	USB/Thunderbolt Configuration	Enable or disable booting from USB mass storage devices connected to external USB ports. By default, the Enable External USB Ports option is enabled. Enable or disable booting from USB mass storage devices such as external hard drive, optical drive, and USB drive. By default, the Enable USB Boot Support option is enabled.
	Enable Thunderbolt Technology Support	Enable or disable the associated ports and adapters. By default, the Enable Thunderbolt Technology Support option is selected.
	Enable Thunderbolt Boot Support	Enable or disable the Thunderbolt adapter peripheral device and USB devices connected to the Thunderbolt adapter to be used during BIOS Pre-boot. By default, the Enable Thunderbolt Boot Support option is disabled.
	Enable Thunderbolt (and PCIe behind TBT) pre-boot modules	Enable or disable the PCIe devices that are connected through a Thunderbolt adapter to execute the PCIe devices UEFI Option ROM (if present) during pre-boot. By default, the Enable Thunderbolt (and PCIe behind TBT) pre-boot modules option is disabled.
	Disable USB4 PCIE Tunneling	Disable the USB4 PCIE Tunneling option. By default, the option is disabled.
	Video/Power only on Type-C Ports	Enable or disable the Type-C port functionality to video or only power. By default, the Video/Power only on Type-C Ports option is disabled.
	Type-C Dock Override	Enables to use connected Type-C Dell Dock to provide data stream with external USB ports disabled. When Type-C Dock override is enabled, the Video/Audio/Lan submenu is activated. By default, the Type-C Dock Override option is enabled.
	Video	Enable or disable the usage of video on Dell Dock external ports. By default, the Video option is disabled.
	Audio	Enable or disable the usage of audio on Dell Dock external ports. By default, the Audio option is enabled.
	Lan	Enable or disable the usage of LAN on Dell Dock external ports. By default, the Lan option is enabled.
	Miscellaneous Devices	Enable or disable Fingerprint Reader device. By default, the Enable Fingerprint Reader Device option is enabled.
	Unobtrusive Mode
	Enable Unobtrusive Mode	Enable or disable all the computer light and sound. By default, the Enable Unobtrusive Mode option is disabled.

Table 4. System setup options—Storage menu The following table describes the Storage menu options in the system setup program.
Storage
	SATA/NVMe Operation
	SATA/NVMe Operation	Set the operating mode of the integrated storage device controller. By default, the RAID On option is enabled.
	SMART Reporting
	Enable SMART Reporting	Enable or disable Self-Monitoring, Analysis, and Reporting Technology (SMART) during computer startup. By default, the Enable SMART Reporting option is not enabled.
	Drive Information
	SATA-1
	Type	Displays the SATA-1 type information of the computer.
	Device	Displays the SATA-1 device information of the computer.
	M.2 PCIe SSD-1
	Type	Displays the M.2 PCIe SSD-1 type information of the computer.
	Device	Displays the M.2 PCIe SSD-1 device information of the computer.
	M.2 PCIe SSD-2
	Type	Displays the M.2 PCIe SSD-2 type information of the computer.
	Device	Displays the M.2 PCIe SSD-2 device information of the computer.
	Enable MediaCard
	Secure Digital (SD) Card	Enable or disable the SD card. By default, the Secure Digital (SD) Card option is enabled.
	Secure Digital (SD) Card Read-Only Mode	Enable or disable the SD card read-only mode. By default, the Secure Digital (SD) Card Read-Only Mode option is not enabled.

Table 5. System setup options—Display menuThe following table describes the Display menu options in the system setup program.
Display
	Display Brightness
	Brightness on battery power	Enable to set screen brightness when the computer is running on battery power.
	Brightness on AC power	Enable to set screen brightness when the computer is running on AC power.
	Full Screen Logo	Enable or disable full screen logo. By default, the option is not enabled.

Table 6. System setup options—Connection menu The following table describes the Connection menu options in the system setup program.
Connection
	Network Controller Configuration
	Integrated NIC	Controls the on-board LAN controller. By default, the Enabled with PXE option is enabled.
	Enable UEFI Network Stack	Enable or disable UEFI Network Stack. By default, the Enable UEFI Network Stack and Enabled w/PXE option are enabled.
	Wireless Device Enable
	WWAN/GPS	Enable or disable the internal WWAN/GPS device By default, the option enabled.
	WWAN Bus Mode	Set the interface type of the Wireless Wan (WWAN) card. By default, the Bus Mode PCIe option is enabled.
	WLAN	Enable or disable the internal WLAN device By default, the option enabled.
	Bluetooth	Enable or disable the internal Bluetooth device By default, the option enabled.
	Contactless smartcard/NFC	Enable or disable the internal Contactless smartcard/NFC device By default, the option enabled.
	Enable UEFI Network Stack	Enable or disable UEFI Network Stack and controls the on-board LAN Controller. By default, the Enable UEFI Network Stack option are enabled.
	Wireless Radio Control
	Control WLAN radio	Sense the connection of the computer to a wired network and subsequently disable the selected wireless radios (WLAN). By default, the option is disabled.
	Control WWAN radio	Sense the connection of the computer to a wired network and subsequently disable the selected wireless radios (WWAN). By default, the option is disabled.
	HTTPs Boot Feature
	HTTPs Boot	Enable or disable the HTTPs Boot feature. By default, the HTTPs Boot option is enabled.
	HTTPs Boot Mode	With Auto Mode, the HTTPs Boot extracts Boot URL from the DHCP. With Manual Mode, the HTTPs Boot reads Boot URL from the user-provided data. By default, the Auto Mode option is enabled.

Table 7. System setup options—Power menuThe following table describes the Power menu options in the System setup program.
Power
	Battery configuration	Enables the computer to run on battery during peak power usage hours. Use the table Custom Charge Start and Custom Charge Stop, to prevent AC power usage between certain times of each day. By default, the Adaptive option is enabled.
	Advanced Configuration
	Enable Advanced Battery Charge Configuration	Enable or disable the advanced battery charge configuration. By default, the Enable Advanced Battery Charge Configuration option is disabled.
	Peak Shift	Enables the computer to run on battery during peak power usage hours. By default, the Enable Peak Shift option is enabled.
	Enable Peak Shift
	USB PowerShare
	Enable USB PowerShare	Enable or disable the USB PowerShare. By default, the Enable USB PowerShare option is disabled
	Thermal Management	Enables to cool the fan and processor heat management to adjust the computer performance, noise, and temperature. By default, the Optimized option is enabled.
	USB Wake Support
	Wake on Dell USB-C Dock	When enabled, connecting a Dell USB-C Dock will wake the computer from standby. By default, the Wake on Dell USB-C Dock option is enabled.
	Block Sleep	Enables to block entering sleep (S3) mode in the operating system. By default, the Block Sleep option is disabled.
	Lid Switch	Enable or disable the lid switch. By default, the Lid Switch option is enabled.
	Intel Speed Shift Technology	Enable or disable the Intel speed shift technology support. By default, the Intel Speed Shift Technology option is enabled.
	Long Life Cycle Primary Battery	By default, the Normal Battery option is enabled.

Table 8. System setup options—Security menu
The following table describes the Security menu options in the System setup program.
Security
	TPM 2.0 Security
	TPM 2.0 Security On	Enable or disable TPM 2.0 security options. By default, the TPM 2.0 Security On option is enabled.
	Attestation Enable	Enables to control whether the Trusted Platform Module (TPM) Endorsement Hierarchy is available to the operating system. By default, the Attestation Enable option is enabled.
	Key Storage Enable	Enables to control whether the Trusted Platform Module (TPM) Storage Hierarchy is available to the operating system. By default, the Key Storage Enable option is enabled.
	SHA-256	BIOS and the TPM will use the SHA-256 hash algorithm to extend measurements into the TPM PCRs during BIOS boot. By default, the SHA-256 option is enabled.
	Clear	Enables to clear the TPM owner information and returns the TPM to the default state. By default, the Clear option is disabled.
	PPI ByPass for Clear Commands	Controls the TPM Physical Presence Interface (PPI). By default, the PPI ByPass for clear Commands option is disabled.
	Intel Total Memory Encryption
	Total Memory Encryption	Enable or disable you to protect memory from physical attacks including freeze spray, probing DDR to read the cycles, and others. By default, the Total Memory Encryption option is disabled.
	Chassis intrusion	Controls the chassis intrusion feature. By default, the On-Silent option is enabled.
	SMM Security Mitigation	Enable or disable SMM Security Mitigation. By default, the option is enabled.
	Data Wipe on Next Boot
	Start Data Wipe	Enable or disable the data wipe on next boot. By default, the option is enabled.
	Absolute	Enable or disable or permanently disable the BIOS module interface of the optional Absolute Persistence Module service from Absolute software. By default, the option is enabled.
	UEFI Boot Path Security	Controls whether or not the computer will prompt the user to enter the admin password (if set) when booting to a UEFI boot device from the F12 boot menu. By default, the Always Except Internal HDD option is enabled.

Table 9. System setup options—Passwords menuThe following table describes the Passwords options in the System setup program.
Passwords
	Admin Password	Set, change, or delete the administrator password.
	System Password	Set, change, or delete the computer password.
	NVMe SSD0	Set, change, or delete the NVMe SSD0 password.
	Password Configuration
	Upper Case Letter	Reinforces password must have at least one upper case letter. By default, the option is disabled.
	Lower Case Letter	Reinforces password must have at least one lower case letter. By default, the option is disabled.
	Digit	Reinforces password must have at least one digit. By default, the option is disabled.
	Special Character	Reinforces password must have at least one special character. By default, the option is disabled.
	Minimum Characters	Set the minimum characters allowed for password.
	Password Bypass	When enabled, this always prompts for computer and internal hard drive passwords when powered on from the off state. By default, the Disabled option is enabled.
	Password Changes
	Enable Non-Admin Password Changes	Enable or disable to change computer and hard drive password without the need for admin password. By default, the option is enabled.
	Admin Setup Lockout
	Enable Admin Setup Lockout	Enables administrators control over how their users can or cannot access BIOS setup. By default, the option is disabled.
	Master Password Lockout
	Enable Master Password Lockout	When enabled, this will disable the master password support. By default, the option is disabled.
	Allow Non-Admin PSID Revert
	Enable Allow Non-Admin PSID Revert	Controls access to the Physical Security ID (PSID) revert of NVMe hard-drives from the Dell Security Manager prompt. By default, the option is disabled.

Table 10. System setup options—Update, Recovery menu The following table describes the Update, Recovery options in the System setup program.
Update, Recovery
	UEFI Capsule Firmware Updates	Enable or disable BIOS updates through UEFI capsule update packages. By default, the option is enabled.
	BIOS Recovery from Hard Drive	Enables the user to recover from certain corrupted BIOS conditions from a recovery file on the user primary hard drive or an external USB key. By default, the option is enabled.
	BIOS Downgrade
	Allow BIOS Downgrade	Enable or disable the flashing of the computer firmware to previous revision is blocked. By default, the option is enabled.
	SupportAssist OS Recovery	Enable or disable the boot flow for SupportAssist OS Recovery tool in the event of certain computer errors. By default, the option is enabled.
	BIOSConnect	Enable or disable cloud Service OS recovery if the main operating system fails to boot with the number of failures equal to or greater than the value specified by the Auto OS Recovery Threshold setup option and local Service OS does not boot or is not installed. By default, the option is enabled.
	Dell Auto OS Recovery Threshold	Controls the automatic boot flow for SupportAssist System Resolution Console and for Dell OS Recovery Tool. By default, the threshold value is set to 2.

Table 11. System setup options—System Management menu The following table describes the System Management menu options in the System setup program.
System Management
	Service Tag	Display the Service Tag of the computer.
	Asset Tag	Create a computer Asset Tag.
	AC Behavior
	Wake on AC	Enable or disable the wake on AC option. By default, the option is disabled.
	Wake on LAN
	Wake on LAN	Enable or disable the computer to power on by special LAN signals when it receives a wakeup signal from the WLAN. By default, the Disabled option is selected.
	Auto on Time	Enable to set the computer to turn on automatically every day or on a preselected date and time. This option can be configured only if the Auto On Time is set to Everyday, Weekdays, or Selected Days. By default, the option is disabled.

Table 12. System setup options—Keyboard menu The following table describes the Keyboard menu options in the System setup program.
Keyboard
	Numlock Enable	Enable or disable the Numlock function when the computer boots. By default, the option is enabled.
	Fn Lock Options	By default, the Fn lock option is enabled.
	Keyboard Illumination	Enables to change the keyboard illumination settings. By default, the Bright option is enabled.
	Keyboard Backlight Timeout on AC	Set the timeout value for the keyboard backlight when an AC adapter is connected to the computer. By default, the 10 seconds option is enabled.
	Keyboard Backlight Timeout on Battery	Set the timeout value for the keyboard backlight when the is running only on battery power. By default, the 10 seconds option is enabled.
	Device Configuration Hotkey Access	Manages whether you can access device configuration screens through hotkeys during computer startup. By default, the option is enabled.

Table 13. System setup options—Pre-boot Behavior menu The following table describes the Pre-boot Behavior menu options in the System setup program.
Pre-boot Behavior
	Adapter Warnings
	Enable Adapter Warnings	Enable or disable the warning messages during boot when the adapters with less power capacity are detected. By default, the option is enabled.
	Warning and Errors	Enable or disable the action to be done when a warning or error is encountered. By default, the Prompt on Warnings and Errors option is enabled.
	USB-C Warnings
	Enable Dock Warning Messages	Enable or disable Dock Warning Messages. By default, the option is enabled.
	Fastboot	Enable to set the speed of the boot process. By default, the Minimal option is enabled.
	Extend BIOS POST Time	Set the BIOS POST time. By default, the 0 seconds option is enabled.
	MAC Address Pass-Through	Replaces the external NIC MAC address with the selected MAC address from the computer. By default, the System Unique MAC Address option is enabled.

Table 14. System setup options—Performance menu The following table describes the Performance menu options in the System setup program.
Performance
	Multi Core Support
	Active Cores	Enables to change the number of CPU cores available to the operating system. By default, the All Cores options is enabled.
	Intel SpeedStep
	Enable Intel SpeedStep Technology	Enables the computer to dynamically adjust processor voltage and core frequency, decreasing average power consumption and heat production. By default, the option is enabled.
	C-States Control
	Enable C-State Control	Enable or disable additional processor sleep states. By default, the option is enabled.
	Intel TurbocBoost Technology
	Enable Intel Turbo Boost Technology	Enable or disable Intel TurboBoost mode of the processor. By default, the option is enabled.
	Intel Hyper-Threading Technology
	Enable Intel Hyper-Threading Technology	Enable or disable Hyper-Threading in the processor. By default, the option is enabled.
	Dynamic Tuning:Machine Learning
	Enable Dynamic Tuning:Machine Learning	Enables the operating system capability to enhance dynamic power tuning capabilities based on detected workloads. By default, the option is disabled.

Table 15. System setup options—System Logs menu
The following table describes the System Logs menu options in the System setup program.
System Logs
	BIOS Event Log
	Clear Bios Event Log	Display BIOS events. By default, the Keep option is enabled.
	Thermal Event Log
	Clear Thermal Event Log	Display Thermal events. By default, the Keep option is enabled.
	Power Event Log
	Clear Power Event Log	Display power events. By default, the Keep option is enabled.
	License Information	Displays the license information of the computer.