When the BIOS is powered on? How can I configure a master?

This function needs to be set in bios, and advanced power management settings of your motherboard must support this function. Step 1: Start the system to press del to enter bios, select "power management features" and press enter to enter. find the "Restore on AC/power loss" item in the Power window, press enter, and set its value to "power on" through the arrow key ". step 2: Select "resume on RTC alarm" and press Enter. Then, use the direction key to set the value to "enable". Step 3: Select "RTC alarm date" and press Enter, set the value to "everyday", indicating that the same operation is performed every day, set "RTC alarm hours" "RTC alarm minute" "RTM alarm second" to "07" "15" "00", indicating that the boot time is "7:15:00" in the morning ", after all settings, press F10 to save and restart. (Because different motherboard BIOS are different, some motherboard settings may be a little different from the above, but just remember to find the word "wake up" in power management, because this is the option to set timed boot)