OptiPlex Tower Plus 7020 Owner's Manual

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System setup options

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

Table 1. System setup options—Overview menu
The following table describes the Overview menu options in the System setup program.
Overview
OptiPlex Tower Plus 7020
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. By default, the Signed Firmware Update option is enabled.
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 1 Size	Displays the DIMM 1 memory size.
DIMM 2 Size	Displays the DIMM 2 memory size.
DIMM 3 Size	Displays the DIMM 3 memory size.
DIMM 4 Size	Displays the DIMM 4 memory size.
Devices
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.
Slot 1	Displays the PCIe information of the computer for PCIe slot 1.
Slot 2	Displays the PCIe information of the computer for PCIe slot 2.
Slot 3	Displays the PCIe information of the computer for PCIe slot 3.
Slot 4	Displays the PCIe information of the computer for PCIe slot 4.

Table 2. System setup options—Boot Configuration menu
The following table describes the Boot Configuration menu options in the System setup program.
Boot Configuration
Boot Sequence
Boot Mode: UEFI only	Displays the boot mode of the computer.
Boot Sequence	Displays the boot sequence.
Enable PXE Boot Priority	Enables the computer to add PXE boot option to the top of the Boot Sequence when a new PXE boot option is detected. By default, the Enable PXE Boot Priority option is disabled.
Force PXE On Next Boot	Enables the Force PXE feature. By default, the Force PXE On Next Boot option is disabled.
Secure Digital (SD) Card Boot	Enables or disables read-only boot from Secure Digital (SD) card. By default, the Secure Digital (SD) Card Boot option is disabled.
Secure Boot	Secure Boot is a method of guaranteeing the integrity of the boot path by performing additional validation of the operating system and PCI add-in cards. The computer stops booting to the operating system when a component is not authenticated during the boot process. Secure Boot can be enabled in BIOS setup or using management interfaces like Dell Command\|Configure, but can only be disabled from BIOS setup.
Enable Secure Boot	Enables the computer to boot using only validated boot software. By default, the Enable Secure Boot option is disabled. For additional security, Dell Technologies recommends keeping the Secure Boot option enabled to ensure that the UEFI firmware validates the operating system during the boot process. NOTE:For Secure Boot to be enabled, the computer is required to be in UEFI boot mode and the Enable Legacy Option ROMs option is required to be turned off.
Enable Microsoft UEFI CA	When disabled, the UEFI CA is removed from the BIOS UEFI Secure Boot database. NOTE:When disabled, the Microsoft UEFI CA could render your computer unable to boot, computer graphics may not function, some devices may not function properly, and the computer could become unrecoverable. By default, the Enable Microsoft UEFI CA option is enabled. For additional security, Dell Technologies recommends keeping the Microsoft UEFI CA option enabled to ensure the broadest compatibility with devices and operating systems.
Secure Boot Mode	Enables or disables the Secure Boot operation mode. By default, the Deployed Mode is selected. NOTE:Deployed Mode should be selected for normal operation of Secure Boot.
Expert Key Management
Enable Custom Mode	Enables or disables the keys in the PK, KEK, db, and dbx security key databases to be modified. By default, the Enable Custom Mode option is disabled.
Custom Mode Key Management	Selects the custom values for expert key management. By default, the PK option is selected.

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
Date	Sets the computer date in MM/DD/YYYY format. Changes to the date format take effect immediately.
Time	Sets the computer time in HH/MM/SS 24-hour format. You can switch between a 12-hour and 24-hour clock. Changes to the time format take effect immediately.
Audio
Enable Audio	Enables all integrated audio controller. By default, all the options are enabled.
Enable Microphone	Enables the microphone. By default, the Enable Microphone option is enabled. NOTE:Depending on the configuration ordered, the microphone setup option may not be available.
Enable Internal Speaker	Enables the internal speaker. By default, the Enable Intenal Speaker option is enabled.
USB Configuration
Enable Front USB Ports	Enables the front USB ports. By default, the Enable Front USB Ports option is enabled.
Enable Rear USB Ports	Enables the rear USB ports. By default, the Enable Rear USB Ports option is enabled.
Enable USB Boot Support	Enables booting from USB mass storage devices that are connected to external USB ports. By default, the Enable USB Boot Support option is enabled.
Front USB Configuration	Enables or disables the individual front USB ports. By default, all the front USB ports are enabled.
Rear USB Configuration	Enables or disables the individual rear USB ports. By default, all the rear USB ports are enabled.
Miscellaneous Devices
PCI Slot	Enables the PCI slots. By default, the PCI Slot option is disabled.
Dust Filter Maintenance	Enables or disables the BIOS message for maintaining the optional dust filter installed in your computer. When this option is enabled, the BIOS generates a pre-boot reminder to clean or replace the dust filter based on the interval set. By default, the Dust Filter Maintenance 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		Sets the operating mode of the integrated storage device controller. By default, the RAID On option is selected. The storage device is configured to support RAID functions with VMD controller.
Storage Interface		Displays the information of various onboard drives.
Port Enablement		Enables or disables the individual onboard drives installed on the computer. By default, all the onboard drives are enabled.
SMART Reporting
Enable SMART Reporting		Enables SMART (Self-Monitoring, Analysis, and Reporting Technology) Reporting. When enabled, the BIOS can receive analytical information from integrated drives and send notifications during startup about possible future failure of the hard drive. By default, the Enable SMART Reporting option is disabled.
Drive Information		Displays the information of onboard drives.
Enable MediaCard
Secure Digital (SD) Card		Enables or disables the SD card. By default, the Secure Digital (SD) Card option is enabled.
Secure Digital (SD) Card Read-Only Mode		Enables or disables the SD card read-only mode. By default, the Secure Digital (SD) Card Read-Only Mode option is disabled.

Table 5. System setup options—Display menu
The following table describes the Display menu options in the System setup program.
Display
Primary Display		Determines the primary display when multiple controllers are available on the computer By default, the Auto option is selected.
Full Screen Logo		Enables or disables the computer to display a full-screen logo, if the image matches screen resolution. By default, the Full Screen Logo option is disabled.

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		Enables or disables the on-board LAN Controller. By default, the Enabled with PXE option is selected.
Wireless Device Enable
WLAN		Enables or disables the internal WLAN device. By default, the WLAN option enabled.
Bluetooth		Enables or disables the internal Bluetooth device. By default, the Bluetooth option enabled.
Enable UEFI Network Stack		Enables or disables the UEFI Network Stack and controls the onboard LAN Controller. By default, the Auto Enabled option is selected.
HTTP(s) Boot Feature
HTTP(s) Boot		Displays if the computer has HTTP(s) Boot capabilities or not. By default, the HTTP(s) Boot option is enabled.
HTTP(s) Boot Modes		Allows you to set the HTTP(s) Boot Mode for the computer. By default, the Auto Mode option is selected. HTTP(s) Boot automatically extracts Boot URL from Dynamic Host Configuration Protocol (DHCP).

Table 7. System setup options—Power menu
The following table describes the Power menu options in the System setup program.
Power
USB PowerShare
Enable USB PowerShare	Enables external devices to be powered or charged using the stored system battery even when the computer is in sleep state. By default, the Enable USB PowerShare option is disabled.
Thermal Management	Enables or disables cooling of fan and manages processor heat to adjust the computer performance, noise, and temperature. By default, the Optimized option is selected. Standard setting for balanced performance, noise, and temperature.
USB Wake Support
Enable USB Wake Support	When enabled, connecting a USB device wakes the computer from Standby, Hibernate, and Power Off. By default, the Enable USB Wake Support option is enabled.
AC Bahavior
AC Recovery	Determines the computer behavior when AC power is restored after an unexpected loss of AC power. By default, the Power Off option is selected.
Block Sleep	Blocks the computer from entering Sleep (S3) mode in the operating system. By default, the Block Sleep option is disabled. NOTE:When enabled, the computer does not go to Sleep, Intel Rapid Start is disabled automatically, and the operating system power option is blank if it was set to Sleep.
Deep Sleep Control	Determines the computer behavior for conserving power when the computer in in Shutdown (S5) or Hibernate (S4) mode. By default, the Enabled in S4 and S5 option is selected.
Fan Control Override	Determines the speed of the system fan. When this option is enabled, the system fan runs at full speed. When disabled, the system fan controller uses system environment data to run the fan at optimal speed. By default, the Fan Control Override option is disabled.
Intel Speed Shift Technology	Enables or disables the Intel Speed Shift Technology support. When enabled, the operating system selects the appropriate processor performance automatically. By default, the Intel Speed Shift Technology option is enabled.

Table 8. System setup options—Security menu
The following table describes the Security menu options in the System setup program.
Security
Trusted Platform Module (TPM) 2.0 Security	The Trusted Platform Module (TPM) provides various cryptographic services which serve as the cornerstone for many platform security technologies. Trusted Platform Module (TPM) is a security device that stores computer-generated keys for encryption and features such as BitLocker, Virtual Secure Mode, remote Attestation. By default, the Trusted Platform Module (TPM) option is enabled. For additional security, Dell Technologies recommends keeping Trusted Platform Module (TPM) enabled to allow these security technologies to fully function. NOTE: The options that are listed apply to computers with a discrete Trusted Platform Module (TPM) chip.
TPM 2.0 Security On	Allows you to select whether or not the TPM is visible to the operating system. By default, the TPM 2.0 Security On option is enabled. For additional security, Dell Technologies recommends keeping TPM 2.0 Security On enabled to allow these security technologies to fully function.
Attestation Enable	The Attestation Enable option controls the endorsement hierarchy of TPM. Disabling the Attestation Enable option prevents TPM from being used to digitally sign certificates. By default, the Attestation Enable option is enabled. For additional security, Dell Technologies recommends keeping the Attestation Enable option enabled. NOTE:When disabled, this feature may cause compatibility issues or loss of functionality in some operating systems.
Key Storage Enable	The Key Storage Enable option controls the storage hierarchy of TPM, which is used to store digital keys. Disabling the Key Storage Enable option restricts the ability of TPM to store owner's data. By default, the Key Storage Enable option is enabled. For additional security, Dell Technologies recommends keeping the Key Storage Enable option enabled. NOTE:When disabled, this feature may cause compatibility issues or loss of functionality in some operating systems.
SHA-256	Allows you to control the hashing algorithm that is used by the TPM. When enabled, the TPM uses the SHA-256 hashing algorithm. When disabled, the TPM uses the SHA-1 hash algorithm. By default, the SHA-256 option is enabled. For additional security, Dell Technologies recommends keeping the SHA-256 option enabled.
Clear	When enabled, the Clear option clears information that is stored in the TPM after exiting the computer's BIOS. This option returns to the disabled state when the computer restarts. By default, the Clear option is disabled. Dell Technologies recommends enabling the Clear option only when TPM data is required to be cleared.
Physical Presence Interface (PPI) Bypass for Clear Commands	By default, the PPI Bypass for Clear Commands option is disabled. For additional security, Dell Technologies recommends keeping the PPI Bypass for Clear Commands option disabled.
Intel Total Memory Encryption	Total Memory Encryption (TME) protects memory from physical attacks including freeze spray, probing DDR to read the cycles, and other such attacks.
Multi-Key Total Memory Encryption (Up to 16 keys)	Enables or disables the Multi-Key Total Memory Encryption option. When enabled, all of system memory is encrypted by the TME block attached to the memory controller. Up to 16 different encryption keys are supported for use by the operating system/VMM. By default, the Multi-Key Total Memory Encryption (Up to 16 keys) option is disabled.
SMM Security Mitigation	Enables or disables additional UEFI SMM Security Mitigation protections. This option uses the Windows SMM Security Mitigations Table (WSMT) to confirm to the operating system that security best practices have been implemented by the UEFI firmware. By default, the SMM Security Mitigation option is enabled. For additional security, Dell Technologies recommends keeping the SMM Security Mitigation option enabled unless you have a specific application which is not compatible. NOTE:This feature may cause compatibility issues or loss of functionality with some legacy tools and applications.
Data Wipe on Next Boot
Start Data Wipe	Data Wipe is a secure wipe operation that deletes information from a storage device. CAUTION:The secure Data Wipe operation deletes information in a way that it cannot be reconstructed. Commands such as delete and format in the operating system may remove files from showing up in the file system. However, they can be reconstructed through forensic means as they are still represented on the physical media. Data Wipe prevents this reconstruction and is not recoverable. When enabled, the data wipe option will prompt to wipe any storage devices that are connected to the computer on the next boot. By default, the Start Data Wipe option is disabled.
Absolute	Absolute Software provides various cyber security solutions, some requiring software preloaded on Dell computers and integrated into the BIOS. To use these features, you must enable the Absolute BIOS setting and contact Absolute for configuration and activation. By default, the Enable Absolute option is selected. For additional security, Dell Technologies recommends keeping the Absolute option enabled. NOTE:When the Absolute features are activated, the Absolute integration cannot be disabled from the BIOS setup screen.
UEFI Boot Path Security	Enables or disables the computer to prompt the user to enter the Administrator password (if set) when booting to a UEFI boot path device from the F12 boot menu. By default, the Always Except Internal HDD option is enabled.

Table 9. System setup options—Passwords menu
The following table describes the Passwords menu options in the System setup program.
Passwords
Administrator Password	The Administrator Password prevents unauthorized access to the BIOS Setup options. Once the administrator password is set, the BIOS setup options can only be modified after providing the correct password. The following rules and dependencies apply to the Administrator Password - The administrator password cannot be set if computer and/or internal hard drive passwords are previously set. The administrator password can be used in place of the computer and/or internal hard drive passwords. When set, the administrator password must be provided during a firmware update. Clearing the administrator password also clears the computer password (if set). Dell Technologies recommends using an administrator password to prevent unauthorized changes to BIOS setup options.
System Password	The System Password prevents the computer from booting to an operating system without entering the correct password. The following rules and dependencies apply when the System Password is used - The computer shuts down when idle for approximately 10 minutes at the computer password prompt. The computer shuts down after three incorrect attempts to enter the computer password. The computer shuts down when the Esc key is pressed at the System Password prompt. The computer password is not prompted when the computer resumes from standby mode. Dell Technologies recommends using the computer password in situations where it is likely that a computer may be lost or stolen.
M.2 PCIe SSD-1	The M.2 PCIe SSD-1 Password can be set to prevent unauthorized access of the data stored on the solid-state drive. The computer prompts for the solid-state drive password during boot in order to unlock the drive. A password-secured solid-state drive stays locked even when removed from the computer or placed into another computer. It prevents an attacker from accessing data on the drive without authorization. The following rules and dependencies apply when the M.2 PCIe SSD-1 Password is used - The solid-state drive password option cannot be accessed when a hard drive is disabled in the BIOS setup. The computer shuts down when idle for approximately 10 minutes at the solid-state drive password prompt. The computer shuts down after three incorrect attempts to enter the solid-state drive password and treats the hard drive as not available. The solid-state drive does not accept password unlock attempts after five incorrect attempts to enter the solid-state drive password from the BIOS Setup. The solid-state drive password must be reset for the new password unlock attempts. The computer treats the solid-state drive as not available when the Esc key is pressed at the solid-state drive password prompt. The solid-state drive password is not prompted when the computer resumes from standby mode. When the solid-state drive is unlocked by the user before the computer goes into standby mode, it remains unlocked after the computer resumes from standby mode. If the computer and solid-state drive passwords are set to the same value, the solid-state drive unlocks after the correct computer password is entered. Dell Technologies recommends using a solid-state drive password to protect unauthorized data access.
Password Configuration	The Password configuration page includes several options for changing the requirements of BIOS passwords. You can modify the minimum and maximum length of the passwords and require passwords to contain certain character classes (upper case, lower case, digit, special character). Dell Technologies recommends setting the minimum password length to at least eight characters.
Upper Case Letter	The Upper Case Letter field enforces stricter rules for administrator and system passwords. When enabled, the password is required to include at least one upper case letter. By default, the Upper Case Letter option is disabled.
Lower Case Letter	The Lower Case Letter field enforces stricter rules for administrator and system passwords. When enabled, the password is required to include at least one lower case letter. By default, the Lower Case Letter option is disabled.
Digit	The Digit field enforces stricter rules for administrator and system passwords. When enabled, the password is required to include at least one digit number. By default, the Digit option is disabled.
Special Character	The Special Character field enforces stricter rules for administrator and system passwords. When enabled, the password is required to include at least one special character. By default, the Special Character option is disabled.
Minimum Characters	The Minimum Characters field enforces stricter rules for administrator and system passwords. It allows you to set the minimum number of characters allowed for password. By default, the Minimum Characters option is set to 04.
Password Bypass	The Password Bypass option allows the computer to reboot from the operating system without entering the computer or hard drive password. If the computer has already booted to the operating system, it is presumed that the user has already entered the correct computer or hard drive password. NOTE:This option does not remove the requirement to enter the password after shutting down. By default, the Password Bypass option is disabled. For additional security, Dell Technologies recommends keeping the Password Bypass option enabled.
Password Changes
Allow Non-Admin Password Changes	The Allow Non-Admin Password Changes option in BIOS setup allows an end user to set or change the computer or hard drive passwords without entering the administrator password. This gives an administrator control over the BIOS settings but enables an end user to provide their own password. By default, the Allow Non-Admin Password Changes option is enabled. For additional security, Dell Technologies recommends keeping the Allow Non-Admin Password Changes option disabled.
Admin Setup Lockout	The Admin Setup Lockout option prevents an end user from even viewing the BIOS setup configuration without first entering the administrator password (if set).
Enable Admin Setup Lockout	By default, the Enable Admin Setup Lockout option is disabled. For additional security, Dell Technologies recommends keeping the Enable Admin Setup Lockout option disabled.
Master Password Lockout
Enable Master Password Lockout	The Master Password Lockout setting allows you to disable the Recovery Password feature. If the computer, administrator, or hard drive password is forgotten, the computer becomes unusable. NOTE:When the owner password is set, the Master Password Lockout option is not available. NOTE: When an internal hard drive password is set, it must first be cleared before Master Password Lockout can be changed. By default, the Enable Master Password Lockout option is disabled. For additional security, Dell Technologies does not recommend enabling the Master Password Lockout unless you have implemented your own password recovery computer.
Allow Non-Admin PSID Revert
Enable Allow Non-Admin PSID Revert	Allows you to control access to the Physical Security ID (PSID) revert of NVMe hard-drives from the Dell Security Manager prompt. When enabled, PSID revert is allowed to proceed without providing the BIOS Admin password. By default, the Enable Allow Non-Admin PSID Revert option is disabled.

Table 10. System setup options—Update, Recovery menu
The following table describes the Update, Recovery menu options in the System setup program.
Update, Recovery
UEFI Capsule Firmware Updates
Enable UEFI Capsule Firmware Updates	Enables or disables BIOS updates through UEFI capsule update packages. NOTE:Disabling this option blocks the BIOS updates from services such as Microsoft Windows Update and Linux Vendor Firmware Service (LVFS). By default, the Enable UEFI Capsule Firmware Updates option is enabled.
BIOS Recovery from Hard Drive	Enables or disables 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 BIOS Recovery from Hard Drive option is enabled. NOTE:BIOS Recovery from Hard Drive is not available for self-encrypting drives (SED). 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.
BIOS Downgrade
Allow BIOS Downgrade	Controls flashing of the computer firmware to previous revisions. By default, the Allow BIOS Downgrade option is enabled.
SupportAssist OS Recovery	Enables or disables the boot flow for SupportAssist OS Recovery tool in the event of certain computer errors. By default, the SupportAssist OS Recovery option is enabled.
Dell Auto OS Recovery Threshold	Allows you to control the automatic boot flow for SupportAssist System Resolution Console and for Dell operating system Recovery Tool. By default, the Dell Auto OS Recovery 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	Displays the Service Tag of the computer.
Asset Tag	Creates a computer Asset Tag that can be used by an IT administrator to uniquely identify a particular computer. NOTE:Once set in BIOS, the Asset Tag cannot be changed.
Wake on LAN/WLAN	Enables or disables the computer to turn on by a special LAN signal. By default, the Wake on LAN/WLAN option is disabled.
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 Auto On Time option is disabled.
Intel AMT Capability
Enable Intel AMT Capability	Enables or disables the Intel Active Management Technology (AMT) capability. By default, the Restrict Preboot Access option is selected.
SERR Messages
Enable SERR Messages	Enables or disables the SERR message mechanism. By default, the Enable SERR Messages option is enabled.
First Power On Date
Set Ownership Date	Allows you to set the Ownership date of the computer. By default, the Set Ownership Date option is disabled.
Diagnostics
OS Agent Requests	Enables or disables the computer to turn on by a special LAN signal. By default, the OS Agent Requests option is enabled.
Power-on-Self-Test Automatic Recovery	Enables or disables the computer to turn on by a special LAN signal. By default, the Power-on-Self-Test Automatic Recovery option is enabled.

Table 12. System setup options—Keyboard menu
The following table describes the Keyboard menu options in the System setup program.
Keyboard
Keyboard Errors
Enable Keyboard Error Detection	Enables or disables the reporting of keyboard related errors when the computer boots. By default, the Enable Keyboard Error Detection option is enabled.
Numlock LED
Enable Numlock LED	Determines whether the Numlock LED is on when the computer boots. By default, the Enable Numlock LED option is enabled.
Device Configuration HotKey Access	Allows you to control whether you can access device configuration screens through hotkeys during computer startup. By default, the Device Configuration HotKey Access option is enabled. NOTE:This setting controls only the Intel RAID (CTRL+ I), MEBX (CTRL+ P), and LSI RAID (CTRL+ C) Option ROMs. Other preboot Option ROMs, which support entry using a key sequence, are not affected by this setting.

Table 13. System setup options—Preboot Behavior menu
The following table describes the Preboot Behavior menu options in the System setup program.
Preboot Behavior
Warnings and Errors	Enables or disables the action to be taken when a warning or error is encountered. By default, the Prompt on Warnings and Errors option is selected. Stop, prompt, and wait for user input when warnings or errors are detected. NOTE:Errors deemed critical to the operation of the computer hardware stop the functioning of the computer.
Extend BIOS POST Time	Sets the BIOS POST (Power-On Self-Test) load time. By default, the 0 seconds option is selected.

Table 14. System setup options—Virtualization menu
The following table describes the Virtualization menu options in the System setup program.
Virtualization Support
Intel Virtualization Technology
Enable Intel Virtualization Technology (VT)	When enabled, the computer can run a Virtual Machine Monitor (VMM). By default, the Enable Intel Virtualization Technology (VT) option is enabled.
VT for Direct I/O
Enable Intel VT for Direct I/O	When enabled, the computer can perform Virtualization Technology for Direct I/O (VT-d). VT-d is an Intel method that provides virtualization for memory map I/O. By default, the Enable Intel VT for Direct I/O option is enabled.
Intel Trusted Execution Technology (TXT)	Intel Trusted Execution Technology (TXT) is a set of hardware extensions to Intel processors and chipsets. It provides a hardware-based root of trust to ensure that a platform boots with a known good configuration of firmware, BIOS, virtual machine monitor, and operating system. The following must be enabled in order to enable Intel TXT - Intel Virtualization Technology - X Intel Virtualization Technology - Direct By default, the Intel Trusted Execution Technology (TXT) option is enabled. For additional security, Dell Technologies recommends keeping the Intel Trusted Execution Technology (TXT) option enabled.
DMA Protection
Enable Pre-Boot DMA Support	Allows you to control the Pre-Boot DMA protection for both internal and external ports. This option does not directly enable DMA protection in the operating system. NOTE:This option is not available when the virtualization setting for IOMMU is disabled (VT-d/AMD Vi). By default, the Enable Pre-Boot DMA Support option is enabled. For additional security, Dell Technologies recommends keeping the Enable Pre-Boot DMA Support option enabled. NOTE:This option is provided only for compatibility purposes, since some older hardware is not DMA capable.
Enable OS Kernel DMA Support	Allows you to control the Kernel DMA protection for both internal and external ports. This option does not directly enable DMA protection in the operating system. For operating systems that support DMA protection, this setting indicates to the operating system that the BIOS supports the feature. NOTE:This option is not available when the virtualization setting for IOMMU is disabled (VT-d/AMD Vi). By default, the Enable OS Kernel DMA Support option is enabled. NOTE:This option is provided only for compatibility purposes, since some older hardware is not DMA capable.

Table 15. System setup options—Performance menu
The following table describes the Performance menu options in the System setup program.
Performance
Multi-Core Support
Multiple Atom Cores	Enables to change the number of Atom cores available to the operating system. The default value is set to the maximum number of cores. By default, the All Cores option is selected.
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 Enable Intel SpeedStep Technology option is enabled.
C-State Control
Enable C-State Control	Enables or disables the ability of the CPU to enter and exit low-power state. When disabled, it disables all C-states. When enabled, it enables all C-states that the chipset or platform allows. By default, the Enable C-State Control option is enabled.
Intel Turbo Boost Technology
Enable Intel Turbo Boost Technology	Enables the Intel TurboBoost mode of the processor. When enabled, the Intel TurboBoost driver increases the performance of the CPU or graphics processor. By default, the Enable Intel Turbo Boost Technology option is enabled.
Intel Hyper-Threading Technology
Enable Intel Hyper-Threading Technology	Enables the Intel Hyper-Threading mode of the processor. When enabled, the Intel Hyper-Threading increases the efficiency of the processor resources when multiple threads run on each core. By default, the Intel Hyper-Threading Technology option is enabled.
PCIe Resizable Base Address Register (BAR)	Enables or disables the PCIe resizable BAR support. By default, the PCIe Resizable Base Address Register (BAR) option is disabled.

Table 16. 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	Allows you to select option to keep or clear BIOS events logs. By default, the Keep Log option is selected.
Power Event Log
Clear Power Event Log	Allows you to select option to keep or clear Power events logs. By default, the Keep Log option is selected.