- Notes, cautions, and warnings
- Working inside your computer
- Removing and installing components
- Drivers and downloads
- System setup
- Troubleshooting
- Getting help and contacting Dell
Overview | ||
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Inspiron 5406 2-in-1 | ||
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.
Default: Enabled |
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Battery | Displays the battery health information. | |
Primary | Displays the primary battery. | |
Battery Level | Displays the battery level. | |
Battery State | Displays the battery state. | |
Health | Displays the battery health. | |
AC Adapter | Displays whether an AC adapter is connected. If connected, the AC adapter type. | |
PROCESSOR | ||
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 | ||
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 that is used for the memory. | |
DIMM_SLOT1 | Displays the memory configuration of DIMM SLOT1. | |
DIMM_SLOT2 | Displays the memory configuration of DIMM SLOT2. | |
DEVICES | ||
Panel Type | Displays the Panel Type of the computer. | |
Video Controller | Displays the integrate graphics information of the computer. | |
Video Memory | Displays the video memory information of the computer. | |
Wi-Fi Device | Displays the Wi-Fi device installed in 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 whether a Bluetooth device is installed in the computer. | |
GPU Video Controller | Displays the discrete graphics controller. |
Boot Configuration | ||
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Boot Sequence | ||
Boot Mode: UEFI only | Displays the boot mode of this computer. | |
Boot Sequence | Enables or disables Windows Boot Manager and UEFI Hard Drive.
By default, Windows Boot Manager is selected By default, UEFI Hard Drive is selected |
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Secure Boot | ||
Enable Secure Boot | Enables secure boot using only validated boot software. | |
Secure Boot Mode | Displays the secure boot mode | |
Expert Key Management | ||
Enable Custom Mode | Allows the PK, KEK, db, and dbx security key databases to be modified. | |
Custom Mode Key Management | Allows for selection of key database. |
Integrated Devices | ||
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Date/Time | ||
Date | Sets the computer date in MM/DD/YYYY format. Changes to the date take effect immediately. | |
Time | Sets the computer time in HH/MM/SS 24-hour format. You can switch between 12-hour and 24-hour clock. Changes to the time take effect immediately. | |
Camera | ||
Enable Camera | Enables or disables the camera.
By default, Enable Camera is selected. |
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Audio | ||
Enable Audio | Enables or disables all integrated audio controller.
Default: ON |
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Enable Microphone | Enables or disables microphone.
By default, Enable Microphone is selected. |
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Enable Internal Speaker | Enables or disables internal speaker.
By default, Enable Internal Speaker is selected. |
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USB Configuration | ||
Enable External USB Ports | Enables or disables all external USB ports in an OS environment.
By default, Enable External USB Ports is selected. |
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Enable USB Boot Support | Enables or disables booting from USB mass storage devices such as external hard drive, optical drive, and USB drive.
By default, Enable USB Boot Support is selected. |
Storage | ||
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SATA Operation | ||
SATA Operation | Configures operating mode of the integrated storage device controller.
Default: RAID On. Storage device is configured to support RAID functions. When enabled, all NVMe and SATA devices will be mapped under VMD controller. Windows RST (Intel Rapid Restore Technology) driver, or Linux kernel VMD driver must be loaded in order to boot the OS. |
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Storage Interface | ||
Port Enablement | Enables or disables the onboard drives.
Default: ON |
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SMART Reporting | ||
Enable SMART Reporting | Enables or disables Self-Monitoring, Analysis, and Reporting Technology (SMART).
Default: OFF |
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Drive Information | Displays the information of various onboard drives. | |
Display | |||
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Display Brightness | |||
Brightness on battery power | Sets the screen brightness when the computer is running on battery power.
Default: 50 |
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Brightness on AC power | Sets the screen brightness when the computer is running on AC power.
Default: 100 |
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Touchscreen | |||
Touchscreen | Enables or disables the touchscreen.
Default: ON |
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EcoPower |
Enable EcoPower - Increases the battery life by reducing the display brightness when appropriate. Default: On |
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Full Screen Logo | When turned on, the full screen logo is displayed if the image matches the screen resolution.
Default: OFF |
Connection | |||
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Wireless Device Enable | |||
WLAN | Enable or disable internal WLAN devices.
By default, WLAN is selected. |
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Bluetooth | Enable or disable internal Bluetooth devices.
By default, Bluetooth is selected. |
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Enable UEFI Network Stack | Enables or disables UEFI networking protocols, if they are installed and available.
Default: ON |
Power | ||
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Battery Configuration | Enables the computer to run on battery during power usage hours. Use the below options to prevent AC power usage between certain times of each day.
Default: Adaptive. Battery settings are adaptively optimized based on your typical battery usage pattern. |
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Advanced Configuration | ||
Enable Advanced Battery Charge Configuration | Enables Advanced Battery Charge Configuration from the beginning of the day to a specified work period. Advanced Battery Charged maximizes battery health while still supporting heavy use during the work day.
Default: OFF |
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Thermal Management | Enables the cooling fan and processor heat management to adjust system performance, noise, and temperature.
Default: Optimized. Standard settings for cooling fan and processor heat management. This setting is a balance of performance, noise, and temperature. |
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USB Wake Support | ||
Wake on Dell USB-C Dock | Enables connecting a Dell USB-C Dock to wake the computer from Standby.
Default: ON |
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Block Sleep | Blocks the computer from entering Sleep (S3) mode in the operating system.
Default: OFF NOTE:If enabled, the computer will not go to sleep, Intel Rapid Start will be disabled automatically, and the operating system power option will be blank if it was set to Sleep.
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Lid Switch | ||
Enable Lid Switch | Enable or disable the lid switch.
Default: ON |
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Power On Lid Open | Enables the computer to power up from the off state whenever the lid is opened.
Default: ON |
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Intel Speed Shift Technology | Enables or disables the Intel Speed Shift Technology support. Setting this option to enable allows the operating system to select the appropriate processor performance automatically.
Default: ON |
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Security | ||
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Intel Software Guard Extensions | ||
Intel Software Guard Extensions | Provides a secured environment for running code or storing sensitive information in the context of the main OS.
Default: Software Control |
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Intel Platform Trust Technology | ||
Intel Platform Trust Technology On | Enable or disable the Intel Platform Trust Technology (PPT) feature in the OS.
Default: ON |
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PPI Bypass for Clear Commands | Enables or disables the Trusted Platform Model (TPM) Physical Presence Interface (PPI). When enabled, the OS will skip BIOS Physical Presence Interface (PPI) user prompts when issuing the Clear command.
Default: OFF |
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Clear | Enables or disables the computer to clear the PTT owner information, and returns the PTT to the default state.
Default: OFF |
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SMM Security Mitigation | Enables or disables additional UEFI SMM Security Mitigation protections.
Default: OFF NOTE:This feature may cause compatibility issues or loss of functionality with some legacy tools and applications.
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Data Wipe on Next Boot | When enabled, the BIOS will schedule a data wipe cycle for all storage devices connected to the system board on the next reboot.
Default: OFF |
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Absolute | Enables, disables or permanently disable the BIOS module interface of the optional Absolute Persistence Module service from Absolute Software.
Default: Enabled |
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UEFI Boot Path Security | Determines if the system will prompt the user to enter the admin password (if set) when booting to a UEFI boot path device frim the F12 boot menu.
Default: Always Except Internal HDD. |
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Enable Admin Setup Lockout | Enables or disables the user from entering BIOS Setup when an Admin Password is set.
Default: OFF |
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Password Bypass | Bypass the System (Boot) Password and the internal hard drive password prompts during a system restart.
Default: Disabled |
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Enable Non-Admin Password Changes | Enables or disables the user to change the system and hard drive password without the need for admin password.
Default: ON |
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Non-Admin Setup Changes | ||
TPM 2.0 Security On | Select whether or not the Trusted Platform Model (TPM) is visible to the OS.
Default: ON |
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PPI Bypass for Enable Commands | Enables or disables the OS to skip BIOS Physical Presence Interface (PPI) user prompts when issuing TPM PPI enabled and activate commands.
Default: OFF |
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PPI Bypass for Disable Commands | Enables or disables The OS to skip BIOS PPI user prompts when issuing TPM PPI Disable and Deactivate commands.
Default: OFF |
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Attestation Enable | Enables to control whether the TPM Endorsement Hierarchy is available to the OS. Disabling this setting restricts the ability to use the TPM for signature operations.
Default: ON |
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Key Storage Enable | Enables to control whether the TPM Endorsement Hierarchy is available to the OS. Disabling this setting restricts the ability to use the TPM for storing owner data.
Default: ON |
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SHA-256 | Enables or disables the BIOS and the TPM to use the SHA-256 hash algorithm to extend measurements into the TPM PCRs during BIOS boot.
Default: ON |
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Clear | Enables or disables the computer to clear the PTT owner information, and returns the PTT to the default state.
Default: OFF |
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TPM State | Enables or disables the TPM. This is the normal operating state for the TPM when you want to use its complete array of capabilities.
Default: Enabled |
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SMM Security Mitigation | Enables or disables additional UEFI SMM Security Mitigation protections.
Default: OFF NOTE:This feature may cause compatibility issues or loss of functionality with some legacy tools and applications.
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Intel SGX | Enables or disables the Intel Software Guard Extensions (SGX) to provide a secured environment for running code/storing sensitive information.
Default: Software Control |
Passwords | ||
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Admin Password | Enables the user to set, change, or delete the administrator (admin) password. The admin password enables several security features | |
System Password | Enables the user to set, change, or delete the system password. | |
Password Configuration | ||
Upper Case Letter | Enforces password restriction that the password must contain at least one upper case letter.
Default: OFF |
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Lower Case Letter | Enforces password restriction that the password must contain at least one lower case letter.
Default: OFF |
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Digit | Enforces password restriction that the password must contain at least one digit.
Default: OFF |
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Special Character | Enforces password restriction that the password must contain at least one special character.
Default: OFF |
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Minimum Characters | Controls the minimum number of characters allowed for password.
Default: 04 |
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Password Bypass | Bypass the System (Boot) Password and the internal hard drive password prompts during a system restart.
Default: Disabled |
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Password Changes | ||
Enable Non-Admin Password Changes | Enables or disables the user to change the system and hard drive password without the need for admin password.
Default: ON |
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Admin Setup Lockout | ||
Enable Admin Setup Lockout | Enables or disables the user from entering BIOS Setup when an Admin Password is set.
Default: OFF |
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Master Password Lockout | ||
Enable Master Password Lockout | Enables or disables master password support.
Default: OFF NOTE:Hard drive passwords must be cleared before the setting can be changed.
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Wireless | ||
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UEFI Capsule Firmware Updates | Enable or disable internal WLAN/Bluetooth devices.
By default, WLAN is selected. By default, Bluetooth is selected. |
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Enable UEFI Capsule Firmware Updates | Enables or disables BIOS updates through UEFI capsule update packages.
Default: ON |
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BIOS Recovery from Hard Drive | Enables the computer to recover from a bad BIOS image, as long as the Boot Block portion is intact and functioning.
Default: ON NOTE:BIOS recovery is designed to fix the main BIOS block and cannot work if the Boot Block is damaged. In addition, this feature cannot work in the event of EC corruption, ME corruption, or a hardware issue. The recovery image must exist on an unencrypted partition on the drive.
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BIOS Downgrade | ||
Allow BIOS Downgrade | Controls flashing of the system firmware to previous revisions.
Default: ON |
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SupportAssist OS Recovery | Enables or disables the boot flow for SupportAssist OS Recovery tool, in the event of certain system error.
Default: ON |
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BIOSConnect | Enables or disables cloud Service OS recovery if the main OS fails to boot within the number of failures equal or greater than the value specified by Dell Auto OS Recovery Threshold, and local Service does not boot, or is not installed.
Default: ON |
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Dell Auto OS Recovery Threshold | Controls the automatic boot flow for SupportAssist System Resolution Console and for Dell operating system Recovery tool.
Default: 2. |
System Management | ||
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Service Tag | Displays the Service Tag of the computer. | |
Asset Tag | Creates a system Asset Tag that can be used by an IT administrator to uniquely identify a particular system. Once set in BIOS, the Asset Tag cannot be changed. | |
AC Behavior | ||
Wake on AC | Enables or disables basic checks when AC power is applied to the device. The checks include determining how the AC Recovery option is set. The system will boot up if Wake on AC is enabled, the system will power off, if Wake on AC is disabled.
Default: OFF |
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Auto On Time | Controls automatic powering up of system for defined days and times.
Default: Disabled |
Keyboard | ||
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Numlock Enable | ||
Enable Numlock | Enables or disables Numlock when the computer boots.
Default: ON |
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Fn Lock Options | Enables or disables the Fn lock mode.
Default: ON |
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Lock Mode | Controls operation of function keys F1-F12.
Default: Lock Mode Secondary |
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Keyboard Illumination | Enables the user to change the keyboard illumination settings.
Default: Bright |
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Keyboard Backlight Timeout on AC | Enables the user to define the timeout value for the keyboard backlight when an AC adapter is plugged into the system.
Default: Bright |
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Keyboard Backlight Timeout on Battery | Enables the user to define the timeout value for the keyboard backlight when the system is operating only on battery power.
Default: 1 minute |
Pre-boot Behavior | ||
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Adapter warnings | ||
Enable Adapter warnings | Enables or disables the computer to display adapter warning messages when adapters with too little power capacity are detected.
Default: ON |
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Warnings and Errors | Selects an action on encountering a warning or error during boot.
Default: Prompt on Warnings and Errors. Stop, prompt, and wait for user input when warnings or errors are detected. NOTE:Errors deemed critical to the operation of the computer hardware will always halt the computer.
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USB-C Warnings | Specify the maximum number of characters allowed for Admin password.
Default: 32 |
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Enable Dock warning messages | Enable or disable dock warning messages.
Default: ON |
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Fastboot | Configures the speed of the UEFI boot process.
Default: Thorough. Performs complete hardware and configuration initialization during boot. |
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Extend BIOS POST Time | Configures the BIOS POST (Power-On Self-Test) load time.
Default: 0 seconds |
Virtualization | ||
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Intel Virtualization Technology | ||
Enable Intel Virtualization Technology (VT) | Enables the computer to run a virtual machine monitor (VMM).
Default: ON |
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VT for Direct I/O | ||
Enable Intel VT for Direct I/O | Enables the computer to perform Virtualization Technology for Direct I/O (VT-d). VT-d is an Intel method that provides virtualization for memory map I/O.
Default: ON |
Performance | ||
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Multi-Core Support | ||
Active Cores | Changes the number of CPU cores available to the operating system. The default value is set to the maximum number of cores.
Default: All Cores |
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Intel SpeedStep | ||
Enable Intel SpeedStep Technology | Enables or disables the Intel SpeedStep Technology to dynamically adjust processor voltage and core frequency, decreasing average power consumption and heat production.
Default: ON |
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C-States Control | ||
Enable C-State Control | Enables or disables the CPU's ability to enter and exit low-power states.
Default: ON |
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Enable Adaptive C-States for Discrete Graphics | Allows to dynamically detect high usage of discrete graphics and adjust system parameters for higher performance during that time period.
Default: ON |
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Intel Turbo Boost Technology | ||
Enable Intel Turbo Boost Technology | Enabled or disabled the Intel TurboBoost mode of the processor. If enabled, the Intel TurboBoost driver increases the performance of the CPU or graphics processor.
Default: ON |
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Intel Hyper-Threading Technology | ||
Enable Intel Hyper-Threading Technology | Enabled or disabled the Intel Hyper-Threading mode of the processor. If enabled, the Intel Hyper-Threading increases the efficiency of the processor resources when multiple threads run on each core.
Default: ON |
System Logs | ||
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BIOS Event Log | ||
Clear Bios Event Log | Select keep or clear BIOS events.
Default: Keep |
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Power Event Log | ||
Clear POWER Event Log | Select keep or clear Power events.
Default: Keep |
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Thermal Event Log | ||
Clear Thermal Event Log | Select keep or clear Thermal events.
Default: Keep |