Updating cmos dating past and present

Locate the round, flat, silver battery on the motherboard and carefully remove it. Clearing the CMOS should always be performed for a reason – such as troubleshooting a computer problem or clearing a forgotten BIOS password.

There’s no reason to clear your CMOS if everything is working properly.

In most cases, you can clear the CMOS from within the BIOS menu.

Many motherboards contain a jumper that can be used to clear CMOS settings if your BIOS is not accessible.

This is particularly useful if the BIOS is password-protected and you don’t know the password.

So you’ll have to be very specific while following this guide. In the window, make sure System Summary is selected in the left pane. Follow and confirm the on-screen instructions and patiently wait for the installation to complete.

First you’ll have to know the version of current BIOS installed on your system. In the larger right pane, locate BIOS Version/Date. Do not turn off your laptop in any case during the updating process.

The CMOS battery provides power used to save the BIOS settings – this is how your computer knows how much time has passed even when it’s been powered-off for a while – so removing the battery will remove the source of power and clear the settings.

Important Note: Not all motherboards have removable CMOS batteries. First, ensure the computer is powered off and you’re grounded so you won’t damage the motherboard with static electricity.

To update your BIOS on your HP computer/laptop, you will first have to check which version of BIOS is currently running on your system. Make sure the battery is present in the laptop and the AC adapter is connected with it the whole time.

Below “Enter my HP model number”, type your system’s model name you noted earlier, and press Enter.

If you determine to flash BIOS, you are taking a personal risk of BIOS flash failure.

Please contact your supplier or our distributors/resellers for further remedy in case system crashes unfortunately because of BIOS flash failure.

The easiest way to clear the CMOS is from your computer’s BIOS setup menu.

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