Set CMOS to start automatically after power failure. First, enter the main interface of CMOS settings, select 【 Power Management Settings 】, and then select 【 PWR Lost Resume State 】. This project has three options. Selecting [Keep OFF] means that the computer will not start automatically when it is powered on again after power failure. Selecting [Power on] means that the computer will start automatically when you call again after power failure. The selected [Last Status] means that when the call comes back after the power failure, the computer will return to the state before the power failure. If the computer is turned on before the power is cut off, it will be turned on automatically after the incoming call. It was turned off before the power failure, so the computer won't turn on automatically after the call. After reading it, the method is quite simple, so restart the server [Del] to enter CMOS settings, but when it comes to [Power Management Settings], there is no [PWR Lost Resume State] mentioned above. Continue to search online and find that there is still the option of [PWRON after [PWR-Fail]. Finally, I found it in the [Integrated Peripheral] option. There are two options: On (auto start is turned on) and Off (auto start is turned off). After it is set to ON, I will restart, and the test is successful after power off and power on. When setting up the third server, there is no PWRON after PWR-failure after entering PWR loss recovery state, but there is an AC back function, which should refer to the same function. There are three options: full open, memory and soft shutdown, which are set to full open, and the power-off and power-on test is successful. Different motherboards and CMOS models will have different options, but I don't think there should be much difference. Generally in the [power management settings] and [integrated peripherals] two options. I hope this article is useful for friends who have the same settings as me. Method 1: Set the time to start the system. There is a real-time clock (RTC) on the motherboard, through which we can specify the time to start the system, just like an alarm clock. However, because this function is rarely used, some motherboards that provide this function (such as Intel original motherboards) can't be turned on at the specified time, so users had better test it before it is officially used. The specific operation mode is: 1. After the computer is turned on, press the "Del" key according to the prompt information on the screen to enter the BIOS setting screen of the motherboard, and the setting functions related to timed startup are generally placed under the "Power Management Settings" option. 2. There is an "RTC Alarm Poweron" option in the 2.BIOS, which should be set to "Enabled". After that, users can specifically set the date, hour, minute and second of regular startup. 3. In order to ensure that the computer can start automatically at regular intervals, the user should first check whether the system time in the motherboard BIOS is the same as the real time. 4. The last step, remember to save the result of setting modification in the BIOS of the motherboard, so that it can be turned on at the preset time. Some motherboards can also be set to automatically boot from BIOS at the same time every day by changing the "RTC alarm date" item to "every day". However, I would like to remind you that if you use BIOS to automatically boot, users can only use one account in the Windows operating system, otherwise they will not be able to automatically boot and then automatically log in to Windows. Method 2: Boot with keyboard/mouse If the computer case is out of reach, it is a good scheme to boot with keyboard/mouse. However, it should be noted that this function only supports keyboards and mice connected with PS/2 interface, and cannot be connected with USB interface. By enabling the "Boot via PS/2 keyboard" option in the BIOS of the motherboard, you can choose different startup hotkeys, such as Ctrl+E, which is the most common startup hotkey. Or after selecting "power key", you can use the power key designed separately on the keyboard, but only some keyboards that meet the technical specifications of Keyboard 98 can support this function. Of course, the power button on the chassis can still be used. As for using the mouse to guide, it is also very simple. The setting options in BIOS are similar to those in keyboard boot settings, and then you can start the computer by clicking the mouse button. Method 3: Wake On LAN (WOL) network wake-up function needs to be turned on, which requires the support of network card. The network card with WOL function has a special signal line connected to the WOL interface on the motherboard, which is responsible for transmitting the boot signal to the motherboard. However, at present, there are not many motherboards with WOL interface, but manufacturers provide WOL function on the network chip built in the motherboard. The principle of WOL is that when the computer is turned on or in S5 sleep mode, the network card still runs at a very low voltage, and then other computers on the network can send a magic package called "magic package" to the awakened computer through software. After receiving the signal, the network card will send a power-on signal to the motherboard to start it. Because the computer is still on before waking up, we need to know the MAC address of the network card (each network card has its own unique MAC address, which the software uses to identify it). The specific usage of the network wake-up function is as follows: First, turn on the WOL option in the motherboard BIOS. Note that some motherboards only support Wake On LAN of S5. Secondly, download WOL software from the Internet: /wake-on-lan/. This network wake-up software called "Magic Pack" is simple to set up and use. After running, its operation interface has only five options. Among them, the "(MAC address)" column of the network card can be obtained by the user entering the "ipconfig/all" command in the command line mode of the Windows operating system. In addition, the column "Internet Address" is the column to be broadcast. Enter "255, 255, 255, 255" and "subnet mask" in this column to broadcast locally. The fourth column is "Sending Options", and "Local Subnet" should be selected. Enter the "Remote Port Number" in the fifth column at will. Please note that the above settings only apply to the local LAN. If you want to wake up through the network, there are many problems involved, so I won't discuss them here. Finally, click the "Wake me up" button at the bottom of the interface to wake up the computer from the network. Method 4: Booting with TV cards At present, a large number of TV cards with automatic boot function have been listed on the market. After the connection, you can use the software provided by the TV card to set the boot time. The automatic boot mode of TV card can be roughly divided into three ways: the first is the product with automatic boot function, which needs to connect the power cord of the chassis with the TV card before turning it out; The other is a TV card that starts in sleep mode. Among them, not all users are willing to adopt the second method, because the computer is not really turned off, that is, it is still consuming electricity. The following mainly introduces the specific operation of the first automatic boot mode. 1. First of all, when installing, users should connect the lead pin of the computer switch button on the chassis with the "power switch" pin of the TV card (the author takes Kangbo X800 TV card as an example). 2. Then connect another set of "power switch" pins of the TV card with the power pins on the motherboard, and finally put the TV card into the PCI expansion slot of the motherboard, thus completing the internal connection. 3. After the hardware installation is completed, you need to set the supporting software of the TV card (such as Kangbo PVR2). Mainly in the "pre-recorded settings" function, the user should check "Enable automatic boot function". 4. If the Windows operating system in your computer is used by multiple users, you should also set it to "enable automatic login" mode, and enter the user name and password to complete the whole setup step.