In fact, this technical document is not only applicable to X220, most of the setting instructions are also applicable to T520 series, W520 series and (T, X, W) *30 series
Wake On LAN: When the Ethernet controller receives a remote wake-up packet, it will turn on the system. Note that if a hard disk password is set, the Wake On LAN function will not work. (It is recommended to turn off)
Ethernet LAN Option ROM: Load the Ethernet LAN Option ROM to start from the integrated network device (a special function of the Ethernet card). (Recommended default)
USB UEFI BIOS Support: USB input and output system support, enable or disable the boot support of USB floppy disk drive and USB CD-ROM. If you do not enable USB, you will not be able to use any USB interface devices, such as floppy drives and optical drives with external USB interfaces. (It is recommended to turn on)
Always On USB: Continuous USB power supply. If you choose to turn it on, external USB devices can be charged through the USB port when the computer is in a low power state (sleep/standby, hibernation, or power off) when the computer is connected to AC power. (Recommended to be turned on)
Always On USB Charge in Off Mode: Charge the USB device in the off state (yellow USB port on the body). (Recommended to turn on)
TrackPoint: Pointing stick (Little Red Riding Hood) switch. (Choose according to actual needs, not recommended)
Touch Pad: Touchpad switch. (Choose according to actual needs, not recommended)
Fn and Ctrl Key swap: Fn and Ctrl key swap positions (if you think the Fn key position on ThinkPad is strange, use this option). (Choose according to actual needs, not recommended)
Fn Key Lock: Fn key lock (you can directly press the function key when you press the Fn key twice). (Choose according to actual needs, not recommended)
ThinkPad NumLock: Number key lock. If you select "Independent", you can ignore the NumLock status on the external keyboard and independently disable NumLock on the ThinkPad computer. If NumLock on the ThinkPad computer is enabled, the NumLock on the external keyboard is also enabled; if you select "Symchronized", Then the NumLock on the ThinkPad computer is synchronized with the NumLock on the external keyboard.
Boot Display Device: Start the display device. This item has five options: ThinkPad LCD, Anolog (VGA), Digital on ThinkPad, Digital1 on dock, Digital2 on dock. (Choose according to the situation. ThinkPad LCD is recommended.)
Inter(R) SpeedStep Technology: Use Inter's SpeedStep technology. There are two options: Mode fou AC when connected to AC power and Mode for Battery when connected to a battery. Each has two options: Maximum Perfor and Battery Optimized. (Generally choose Maximum Perfor for Mode fou AC, and Battery Optimized for Mode for Battery)
Note: Speed Step is a technology used by Intel CPUs, which allows the processor to switch between two working modes at will. These two modes are The maximum performance mode (Maximum Performance Mode) in the AC state and the battery optimization mode (Battery Optimized Mode) in the battery state. The so-called highest performance mode means that when the notebook computer is connected to AC power, it can provide performance similar to that of a desktop computer; while the battery optimization mode means that when the notebook computer uses the battery, the performance of the notebook computer will be between the performance of the notebook computer and the battery life. Achieve the best balance.
Adaptive Thermal Management: Adaptive thermal management, used to manage the notebook's thermal energy emission method. Divided into alternating current scheme (Scheme for AC) and battery scheme (Scheme for battery). Each has two options: Maximum Performance and Balanced. (Generally, Scheme fou AC selects Maximum Performace, and Scheme for Battery selects Balanced)
Optical Drive Speed: optical drive speed. There are three options: Normal, High Performance, and Low/Silence. (Choose according to the situation, not recommended)
CPU Power Management: CPU power management. There are two options: Enable and Disable. (Recommended)
PCI Express Power Management: PCI Express power management. There are two options: Enable and Disable. (Recommended)
Note: PCI Express is a new generation of bus interface. It uses the popular point-to-point serial connection in the industry. Compared with the shared parallel architecture of PCI and earlier computer buses, each device has its own dedicated connection. It does not need to request bandwidth from the entire bus, and can reduce the data transfer rate. Raise it to a very high frequency and reach the high bandwidth that PCI cannot provide.
Express Card Speed: Express Card Speed speed management. Divided into the first generation (Generation 1) and automatic (Automatic) two options. (It is recommended to choose automatic)
Note: The biggest difference from traditional PC card technology is that ExpressCard technology uses the latest PCI Express and USB 2.0 interfaces to directly provide hot-pluggable connections between peripheral devices and the host system, without the need for the system’s chipset and A bridge chip is set up between the slots. Although ExpressCard technology borrows many features from existing PC card technology, the former achieves a more ideal balance among various features such as size, performance, reliability, adaptability, hot swap and automatic settings.
Power On with AC Attach: Turn on when connected to AC power. Two options are provided: Enable and Disable. (It is recommended to close)
Hardware Password Manager: Hardware password management. Two options are provided: Enable and Disable. (Choose according to actual needs, not recommended)
Note: If you forget this password, you cannot crack it. If there are no very important files on the hard disk, please use it with caution.
Supervisor Password: Supervisor password. If you set this password, you can prevent unauthorized users from accessing the BIOS to modify settings. There is a password input box, you must fill in the password twice (enter the password Enter New Password and confirm the password Confirm New Password). If no password is entered, the password status (——Password Status) column displays Disable
Lock UEFI BIOS Settings: UEFI BIOS password lock setting. Enable or disable the function of protecting each item in the BIOS Setup Utility to prevent users who do not have a supervisor password from changing these items. By default, this setting is disabled. If you set a supervisor password and enable this function, only you can change any item in the BIOS Setup Utility. Two options are provided: Enable and Disable. (Choose according to actual needs, not recommended)
Note: UEFI was developed based on EFI 1.10. Compared with traditional BIOS, EFI BIOS is closer to a low-end operating system and has the ability to control all hardware resources. UEFI BIOS and traditional BIOS are very different in terms of operating interface and performance. Traditional BIOS settings are only in text form, and there is no visual display. The network support of UEFI BIOS is stronger than that of traditional BIOS. To put it simply, UEFI BIOS is a simple operating system. Compared with traditional BIOS, the computer will scan the information from the soft keyboard or any future input device more quickly and quickly. Players can even play games in UEFI. On the other hand, UEFI has better basic network support than traditional BIOS, which means that network connections can be realized without hard disk and operating system. Realize diskless operation in a true sense. The graphical interface that supports mouse operation is also the main feature of UEFI, and the UEFI interface supports multi-language selection. Of course, Chinese display can also be added to realize the intuitive BIOS in all Chinese. For ordinary consumers, the biggest benefit of EFI is the shortened boot time. Compared with the current 20-second boot time of traditional BIOS, UEFI only takes a few seconds to get the system boot information. At the same time, UEFI supports disk management and boot management functions, and has management tools that are separated from the operating system. Users can maintain the computer without entering the system. This is definitely a good thing for system administrators who control hundreds of computers in the office!
Set Minimum Length: Set the minimum length of the password. Provides a password length format of Disable and a string of 4 to 12 characters. (Choose according to actual needs, not recommended)
Password at unattended boot: BIOS password for unattended boot (personal understanding). Select Enable to display the password prompt when the computer is turned on from the power off state or hibernation state through unattended events such as Wake on LAN. If you select Disabled, no password prompt is displayed, and the computer continues to run and load the operating system. To prevent unauthorized access, set user authentication on the operating system. Provides a password length format of Disable and a string of 4 to 12 characters. (Choose according to actual needs, not recommended)
Password at restart:
Power-on Password: power-on password. If you set this password, you need to type in the correct password to boot the system every time you turn on the computer. There is a password input box, you must fill in the password twice (enter the password Enter New Password and confirm the password Confirm New Password). If no password is entered, the password status (——Password Status) column will display Disable (Disable)
Hard Disk1 Password: The first hard disk password. Setting a hard disk password can prevent unauthorized users from accessing all the data on the hard disk. Only the correct password can be accessed, usually when the machine is turned on. There are two hard disk passwords, User and Master. If you set a user password, you must enter the password every time you turn on the machine. If the user password and the power-on password are the same, you only need to enter the power-on password. The master password is the administrator password. For example, when the hard disk is moved to another machine, the master password must be used. After the power-on password is prompted to enter the power-on password, a cylinder + a lock + an arrow + OK pattern flashes quickly at the same position on the screen. This pattern shows that the user password of the hard disk is the same as the power-on password. There are two ways to set the hard disk password, User mode and User+Master mode. In the User+Master mode, the User password and the Master password can be different, but under normal circumstances, only the User password is required when the machine is turned on. There is a selection box in this item, you can choose User mode or User+Master mode. If there is no password input, the password status (——Password Status) column will display Disable (If you forget the password, it cannot be cracked. If there is no very important file on the hard disk, please use it with caution.)
Predesktop Autherication: During the loading operation Before the system, enable or disable fingerprint authentication. (It is recommended to enable fingerprint recognition, which is very convenient and avoids the trouble of needing to remember the password.)
Reader Priority: fingerprint reader priority. The two options are: first external then internal (External→Internal) and internal only (Internal Only). (For ThinkPad with integrated fingerprint reader, it is recommended to select Internal Only.)
Security Mode: Security mode. If fingerprint authentication fails, you can start the computer by entering the password. There are two options: Normal and High. Select Normal to enter the power-on password or supervisor password; select High to enter the supervisor password. (Select according to your needs. Normal is recommended to avoid unnecessary trouble.)
Reset Fingerprint Data: Reset the fingerprint reader data. There is a dialog box, select Yes to enter the next step to enter the fingerprint data, select No to not enter the fingerprint data.
Security Chip: Security chip. There are three options. If you select Activate, the security chip will take effect; if you select Inactivate, the security chip will be visible but not effective; if you select Disabled, the security chip will be hidden and not effective. (Change according to your own needs. Turning on the security chip can enhance the security of your computer, but it may also bring some unnecessary troubles.)
UEFI BIOS Updata Option: UEFI BIOS upgrade option.
Flash BIOS Updating by End-Users: Provides two options: Enable and Disable. If you choose to enable (Enable), all users can update the Flash BIOS. If you choose to disable (Disable), only those who know the super password can update the Flash BIOS.
Flash Over Lan: Provides two options: Enable and Disable. If you choose to enable (Enable), you are allowed to update the Flash BIOS from an available LAN through a network cable.
Memory Protection: Memory protection.
Execution Prevention: Execution protection. Two options are provided: Enable and Disable. Some computer viruses and worm programs run code that only allows data, causing the memory buffer to overflow. If your operating system can use the Data Execution Prevention function, select Enable to protect your computer from such viruses and worms. If you find that an application is not running normally after selecting Enable, please select Disable and reset the setting.
Virtualization: Virtualization.
Intel(R) Virtualization Technology: Virtualization technology. Two options are provided: Enable and Disable.
Note: Intel Virtualization Technology (VT) virtualization technology is the well-known "Vanderpool" technology before. This technology allows a CPU to work like multiple CPUs running in parallel, so that multiple operations can be run simultaneously in a computer The system becomes possible. The CPU that supports virtualization technology has redundant instruction sets to control the virtual process. Through these instruction sets, the control software VMV (Virtual Machine Monitor) can easily improve performance, which will greatly improve performance compared to software virtual implementations.
Intel (R) VT-d Feature: Intel Virtualization Technology for Directed I/O, referred to as Intel VT-d.
Two options are provided: Enable and Disable.
Note: The current I/O device virtualization mainly uses simulation or software interface methods, so performance can easily become a bottleneck-after all, on traditional machines, I/O devices can easily become a bottleneck, so Intel proposed in due course Intel Virtualization Technology for Directed I/O, referred to as Intel VT-d for short. Using VT-d technology, virtual machines can use direct I/O device allocation or I/O device sharing to replace the traditional device simulation/extra device interface method, which greatly improves the virtualized I/O performance.
I/O Port Access: Input and output port settings. It provides the settings of all ports on the machine, these ports include: Ethernet (Ethernet LAN), wireless network (Wireless LAN), microwave Internet (WiMax), wireless wide area network (Wireless WAN), Bluetooth (Blue tooeh), USB port (USB Port), Expansion Card Slot (ExpressCard Slot), Expansion Bracket (Hard Disk or Optical Disk Drive) (Ultrabay (HDD/Optical)), Memory Card Slot (Memory Card Slot), Integrated Camera (Integrated Camera), Microphone (Microphone), fingerprint reader (Fingerprint Reader). Each item provides two options: Enable and Disable, choose according to your needs.
Note: WiMax (Worldwide Interoperability for Microwave Access), that is, Global Interoperability for Microwave Access. WiMAX is also called 802.16 wireless metropolitan area network or 802.16. WiMAX is an emerging broadband wireless access technology that can provide high-speed Internet-facing connections with data transmission distances of up to 50km. WiMAX also has the advantages of QoS guarantee, high transmission rate, and rich and diverse services. WiMAX has a high technical starting point. It adopts advanced technologies such as OFDM/OFDMA, AAS, and MIMO, which represent the development direction of future communication technologies. With the development of technical standards, WiMAX gradually realizes the mobilization of broadband services, while 3G realizes the development of mobile services. With broadbandization, the degree of integration of the two networks will become higher and higher.
Anti-Theft: Anti-theft.
Intel AT Module Activation: Intel AT Module Activation. Three options are provided: Disable, Enable, and Permanently Disable. The following is the status of the current ATM module: Current setting, Disable; Current state, Not Activated.
Computrace: computer tracking. This is a kind of security software that cannot be detected. It uses a tracking agent to transmit its location to a monitoring center. After the computer reports the loss, the next time the computer accesses the Internet or is plugged into the telephone line, its location will be automatically registered. Security personnel can take action. Press Enter to enter the next-level menu. Computrace Module Activation provides three options: Disable, Enable, and Permanently Disable. The following is the status of the current Computrace module: Current setting, Disable; Current state, Not Activated. (To achieve this function, you must install the Computrace LoJack software from Absolute. Registration requires a fee, about $49 per year, and activates after installation. If there is no need, activation is not recommended)
Startup: Startup option.
Boot: Boot.
Boot Priority Order: Boot priority order. Provides the boot sequence of a variety of devices. USB optical drive interface (USB CD), USB floppy drive interface (USB FDD), built-in optical drive interface CD0 (ATAPI CD0), built-in hard disk interface HDD2 (ATA HDD2), built-in hard disk interface HDD0 (ATA HDD0), built-in hard disk interface HDD1 (ATA HDD1) ), USB hard disk interface (USB HDD), PCI standard network card (PCI LAN), built-in optical drive interface CD1 (ATAPI CD1), built-in optical drive interface CD2 (ATAPI CD2), built-in hard disk interface HDD3 (ATA HDD3), built-in hard disk interface HDD4 ( ATA HDD4). When a device is connected to the above interface, the system will automatically detect the existence of the device. For example, there is HITACHI HTS723232A7A364 behind ATA HDD0, which represents the hard disk currently equipped in the system.
Note: ATA/ATAPI (AT Attachment/AT Attachment Packet Interface, AT embedded interface/AT additional packet interface) is an extension of the parallel ATA interface in the computer. ATA is also called IDE interface, ATAPI is the industry standard ATA interface for CD/DVD and other drives. ATAPI is a software interface that adjusts SCSI/ASPI commands to the ATA interface, which makes it easier for optical drive manufacturers to adjust their high-end CD/DVD drive products to the ATA interface.
Exclude from boot priority order: other devices besides this. Provide other CD (Other CD) and other hard disk (Other HDD) two options.
Network Boot: Network boot priority order. The content of this item is the same as the Boot Priority Order, so I won’t repeat it.
UEFI/Legacy Boot: Switch between UEFI BIOS boot or traditional BIOS boot. Three options are provided: both (Both), UEFI BIOS boot only (UEFI Only), and legacy BIOS boot only (Legacy Only).
UEFI/Legacy Boot Priority: UEFI BIOS boot or traditional BIOS boot priority. Two options are provided: Legacy First and UEFI First.
Boot Mode: Boot mode. Provides quick boot mode (Quick) and troubleshooting boot mode (Diagnostics). It is recommended to select Quick mode, which can shorten the system startup time. Unless there is a problem with the system or the new hardware is replaced, the Diagnostics mode can be selected.
Option key Display: Option key display. This item controls the display of each option key in the startup screen. Two options are provided: Enable and Disable. If you choose to disable (disabled), there will be no prompts in the startup screen. If you choose to enable (Enable), the startup screen prompts the function of F1, F11, F12 and other function keys.
Boot Device List F12 Option: F12 boot device list. Two options are provided: Enable and Disable. If you select Enabled, you can temporarily change the startup sequence of hard disk/optical drive/floppy drive and other devices by pressing the F12 key when booting; select Disabled to disable this function. (It is recommended to select Enabled.) Book City 24308608
Boot Order Lock: Boot order lock. Two options are provided: Enable and Disable. This item can be locked in the previously set boot priority order so that it cannot be changed.
Restart: Restart.
Exit Saving Changes: Exit and save the changed BIOS settings.
Exit Discarding Changes: Exit without saving the changed BIOS settings.
Load Setup Defaults: Restore the default BIOS settings.
Discard Changes: Cancel the changed BIOS settings.
Save Changes: Save the changed BIOS settings.
During the setting process, press the F9 key to restore the original factory preset BIOS settings, and press the F10 key to save the settings and restart.