There is a button battery on the mainboard. It's good to replace it with a new one. The time will not change without turning off the machine. The time will be different when the machine is turned off. Is your pen like this? Just like I said, try it
Check whether the notebook battery is in good contact Check whether the notebook battery is dead Check whether the external power supply works normally Check whether the memory module is loose Detect motherboard problems
You have to take it apart to see what's going on...
Also, you'd better not take it apart and repair it yourself. If you just bought it half a year ago, it must be under warranty. Hurry to send it to the after-sales service. After a long time, the after-sales service insists that you broke it yourself, and you will have to spend money to repair it...
1. Have you ever modified the CMOS settings? It may be that the CMOS settings are improper. 2. The system is infected with a virus. Reinstall the system. 3. Insufficient memory capacity. 4. There are too many startup programs set, which makes the system resources insufficient.
