If the time zone is wrong then your computer, after restart, resets the time for the specified time zone.ġ. The Time Zone is used by Windows to synchronize the Time by using an Internet Time Server. If the Time is displayed on Windows doesn't match the current time, then probably you haven't set your current Time Zone on Windows. Put the battery back and power on your computer. At this case, try to gently pull the contacts out or tighten, depending on the case. If the CMOS battery clips are not broken, then may have loosened (may not be making contact). So, take the CMOS battery apart and check the CMOS battery contacts.
The most rare cause that your PC loses time, is that the contacts in the battery compartment have become loose or broken. Power On your system and then set the time settings. * Note: In many conditions you have to push ahead the CMOS Battery release lever to release the battery first.ĥ. If you cannot find where the CMOS battery sits on motherboard, then read the motherboard's manual. Find out where the CMOS battery sits on motherboard. If the time settings are wrong then probably the CMOS battery is dead.ģ. Leave your PC off for 2-3 hours and then power on it again. Disconnect any power source from your computer and remove the battery also, if you own a laptop computer. Then "Save and Exit" from BIOS settings and then power off your computer.
To find out if the CMOS battery is off, enter BIOS setup and set the current Date, Time and Year. The most commonly reason that your computer loses the Time settings, is a damaged CMOS battery, especially if the date resets to a date like and with time 00.00.00. So, if the CMOS battery is dead, then your PC will lose the time. One of the BIOS features, is that keeps the current Date/Time/Year on an internal clock. After POST, BIOS looks to load the operating system from the computer's hard drive and provides it's information to the operating system. The BIOS information is used during the system startup process (when you power on your PC), to recognize and control the motherboard embedded hardware devices and to make sure that all your PC components are working properly by performing a Power-ON Self Test (POST). The CMOS chip, also known as "BIOS" chip, is a little amount of memory which stores information about your system configuration.
The CMOS battery is an internal battery on your motherboard, that provides power on the CMOS (Complementary Metal Oxide-Semiconductor) chip. If your PC doesn't keep clock settings after shutdown it, then probably the CMOS battery is dead. If you own a Windows Computer (PC) that always loses its time/date/year settings, then read this tutorial to fix the issue.
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