Why clear cmos settings

Make sure your computer is unplugged and then open it up. Move the little plastic jumper from the 2 pins it's on over to the other pins in a 3-pin setup where the center pin is shared or remove the jumper entirely if this is a 2-pin setup.

Any confusion here can be cleared up by checking the CMOS clearing steps outlined in your computer or motherboard manual. Turn the computer back on and make sure that the BIOS settings have reset, or the system password is now cleared — if that's why you were clearing CMOS.

If everything is good, turn off your computer, return the jumper to its original position, and then turn the computer back on. If you don't do this, CMOS will clear on every restart of your computer!

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Develop and improve products. List of Partners vendors. Tim Fisher. VP and General Manager, Lifewire. Facebook Twitter LinkedIn. Updated on September 11, Lisa Mildon. The scenarios when you will need to apply these points are explained respectively. It might also improve the hardware settings for you. So, where do these BIOS settings and configuration details get stored?

This is where CMOS comes into limelight. CMOS is technically a non-volatile memory that stays on your motherboard and, as mentioned above, manages your BIOS settings, and configuration details. On top of that, it remembers and arranges the system date and time.

Since it is non-volatile, it will remember and manage the aforementioned things even when the system is off. If your device is not booting properly, you might be encountering a problem with your CMOS. Your CMOS battery particularly consumes less battery overtime. This is why they last long enough for you to be carefree. An average CMOS battery takes only the power of a millionth of an amp, which makes it last for 10 years approximately.

What affects CMOS batteries is the regular usage of your device. Even though it is a non-volatile memory and consumes a small amount of charge, it still needs to store the charges for future use. As mentioned earlier, regular CMOS has a lifespan of 10 years approximately.

It is a known fact that whenever the problem occurs, we need to solve it. The situations in which you might need to clear you are CMOS is explained in the process of how you do it. There are three general ways to clear your CMOS. In situations where your system date and time are a little fluctuated or not running, you can consider clearing your CMOS. Additionally, this also applies when you notice that the system is not booting or accepting your motherboard.

Now comes the essential part when you learn how to to do the actual job. Many sites might provide you different ways of how to clear your CMOS, but they do not consider the fact that you might not know which method to choose and when.

We surely understand your pain due to which we have come up with 3 different methods, and when you need to use those methods. Did you mean:. Last reply by KumbiaKid Unsolved. KumbiaKid 2 Bronze. Exactly what does "clear CMOS" do? I've seen reference in this forum to clearing the CMOS and have read the instructions in my user manual Inspiron about how to do it.

Can anyone clarify exactly what information is wiped when this is done and what needs to be done after the CMOS is cleared? All forum topics Previous Topic Next Topic. Replies 5. All BIOS changes are cleared and reset to factory defaults. The best advice is "if it ain't broke don't fix it" Welcome to DCF.

Thanks again. Ratz 3 Argentum. Thanks Ratz, I have already done that. Post Reply.