When the computer is turned on, I always need to press F1. What is the cause?

You need to press the F1 key to boot up. There are several reasons. The most common one is that the BIOS battery is out of power. Just replace a battery.

1. What is a BIOS battery

The BIOS battery is also called the motherboard battery. It is located on the motherboard and you can see it by opening the cover of the case. It looks like a round silver coin and looks very nice.

The BIOS battery is actually the same as the battery in the electronic scale and TV remote control, generally CR2032.

Second, the role of the BIOS battery

The BIOS battery is used to store the loading information of the system hardware and the system time, which means that the changes you make to the parameter settings of the computer motherboard and some basic parameter settings inside the system will be stored on the motherboard.

In layman terms, if you use the computer to play and shut it down, you will feel that the computer is out of power at this time, but in fact, the BIOS battery also supplies power to a certain area of ​​the motherboard, which is used to store basic information.

3. What happens if the BIOS battery is gone

If there is no electricity, there are three most obvious changes:

1. First, you must press the F1 key to start the system normally;

2. After booting, the BIOS parameters are restored to factory settings, such as startup items;

3. The system time has also changed back to the playing time;

Of course, there are other changes, so I won’t go into details.

Fourth, how to replace the BIOS battery

The most obvious manifestation of the lack of power in the BIOS battery is that after booting, you need to press the F1 key. At this time, you need to replace the BIOS battery. The battery is very cheap. It used to be 5 cents before. Now you can buy it for 1 yuan and 2 yuan.

1. Note that there is a buckle in the BIOS battery card slot:

2. Don't remove it violently. Pull this buckle and the battery will pop out. If you don't have nails, use a small screwdriver or chopsticks:

3. After the battery pops out, put in the new battery, align it with the position and put it down, press it lightly, and click, it is either pregnant or stuck in, Wahaha~~~

Five, the magical effect of BIOS battery

What if your computer system has a password, but you forget it? You can't redo the system just because you forget the password. There are many ways to get close. Last time I said that you can use the PE system to modify or clear the password.

But the BIOS battery is easier to solve the password, the method is as follows:

Shut down, unplug the power cord, open the case, take out the BIOS battery, wait for 1 minute, wait a little longer, then plug in the battery, plug in the power cord, boot, you will find that the password is magical!

Therefore, you need to press the F1 key to turn on the computer, and try to replace the battery first.

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Origin blog.csdn.net/fuli911/article/details/108903831