Press the DEL key to enter the bios settings of the motherboard (or press F2, the bios used by the motherboard is different, and the entry method is different), find these two items (only one is the default setting of the motherboard), press Enter after selection, select YES, then press Enter, and press F 10 to exit after adjustment. If not, open the case cover, find button cell on the motherboard, take him down and put it back later. Remember to turn off the power before operation.