Replacing the battery on the computer’s motherboard is not a very common problem for users. Nevertheless, it affects the operation of the operating system as a whole quite strongly. Zeroing its charge can not only lead to a decrease in speed and quality of work. It can lead to a complete failure of the computer from work.
We will figure out how to determine if the battery on the motherboard is dead or not. And also consider the instructions for replacing it. And on the subsequent setup of the computer.
Why do I need a battery on my computer motherboard?
Traditionally, many changes to important operating system settings are done through a software shell called BIOS. However, the most important parameters of the computer and its settings are stored in the chipset on the motherboard. This piece of memory is called CMOS.
Unlike the memory located on hard drives, this type of stored information requires a constant source of energy. If it is absent, then all parameters set by the user will be reset. Traditionally, such a source located on the motherboard is the same battery. Outwardly not different from those used in watches or electronic scales. However, it is necessary to approach the replacement of this part from the “right side”. First, let's figure out which battery on the computer's motherboard?
Standard Power Supply Features for CMOS
Consider the main characteristics that this battery has. Their list is presented below.
- The diameter of the part is standard, it is 20 millimeters. The thickness is 3.2 millimeters.
- This battery has a voltage of 3 Volts.
- It also has markings. It is assigned according to the international standard and is traditionally referred to as CR2032.
- There is also an American standard. According to its definition, the battery is assigned the number 5004LC.
- The type of battery for CMOS is standard - a lithium battery.
Before you replace the batteries on the computer motherboard, you need to consider a couple more important points.
What power supplies can be installed on the motherboard?
Before replacing the battery on the motherboard, you need to understand what type of part is allowed for use. The standard features of the part were presented above. The following are valid varieties. Among them:
- The previously discussed standard CR2032 with a thickness of 3.2 millimeters.
- CR2025. This type has a smaller thickness, which is average among those represented and is equal to 2.4 millimeters.
- CR2016. The thinnest type. Its thickness does not exceed 1.6 millimeters.
Determining what type is in the motherboard is quite simple. You just need to remove the battery that is already installed there and look at the inscription on the back.
Where is the battery located on the motherboard?
Everything is quite simple here. Most often, the CMOS power supply socket is located at the bottom of the motherboard. More specifically, it will be located in the lower right corner. Near the video card slots.
Actually, you can find it without special instructions, since the place itself is open, and the battery can be easily seen. But there are no other such power sources on the board.
Signs of a dead battery
Let's look at a few of the most popular features that will help you understand whether to replace the battery on the motherboard. Among them:
- Five or more years have passed since you purchased the item. In this case, the part must be changed regardless of characteristics.
- If the speed of your computer has become noticeably lower, and the connected devices have been detected for too long.
- Each time you start the computer and enter the operating system, the system time is reset. This means that the battery is dead.
- After turning on the computer, the operating system does not start. At the same time, the BIOS program will issue a warning about the need to replace the battery. Then it is safe to proceed with the removal of the old power source.
Now you can proceed to the description of the procedure for replacing the batteries on the computer motherboard.
How is replacement and adjustment done?
Before proceeding with this procedure, some preparatory steps must be taken. Among them:
- Close all programs on the computer and start the shutdown procedure.
- As soon as the device is completely turned off, disconnect it from the power source.
- Now it’s worth moving on to implementing a replacement.
- Open the computer case by unscrewing the wall, which is located opposite the motherboard.
- Then it is recommended that you remove all installed devices, such as a video card or memory cartridges, from the motherboard.
- Now find on the circuit board a cell with a battery. In most cases, it will be open and will immediately catch your eye.
- It’s time to remove the battery. To do this, carefully loosen the locking lever.
- After that, it remains to pick up the battery with a small screwdriver.
- It remains just to insert a new battery in the same place. Most often, it lies in the nest with the marking up. In some cases, it may be located rib.
- After replacing the battery on the motherboard of the computer, it remains just to assemble everything in the reverse order, connect the computer to a power source, start it and go to the BIOS (most often the combination of start keys will be indicated on the start screen).
- After opening the required window, proceed to the Standard CMOS Features section.
- As soon as it is activated, the standard settings for the current date and time will appear on the screen.
- Using the plus and minus keys, set the actual data and press in the indicated order F10 + Y + Enter, and the computer will reboot with the existing changes.