Compaq n620c Replaced cmos battery and can not reset system date
I replaced the cmos battery on my Compaq Evo n620c and the date and time reset to 1980. I changed the date and time in windows. now when I started to download updates, I get a error saying there are differences between my system time and windows time.
I restarted the computer, press F10 entered bios setup and there is no place to correct the date and time.
Is there a command line code to run? and if so how do I do it.
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If the Date & Time changes back to some previous date when you next boot up the computer then the CMOS battery is worn out and needs to be replaced. After replacing the CMOS battery go into the BIOS and set the Date 7 Time.
Good day. The BIOS prompts you to press F1 key and reset the time and date in your system. This is caused by a CMOS battery that needs to be replaced in your motherboard which is unable to save the time and settings in your computer. In order to replace the CMOS battery, you must open your computer and in the motherboard you may see a coin cell battery. You can take it out using you hand or you may use a flat screw driver or a knife. Make it sure that when you do the replacement the computer must be turned off. Once you are done with the replacement you may have to go again to the BIOS and reset the settings again including the time and date and it will never prompt you anymore to reset you time and date settings.
Either the battery which has been replaced is faulty else it is not seated properly. Also after replacing the battery, clear the BIOS and then re-enter the settings starting with default settings and then changing it as required. If the battery was to work then this loss of date & Time won't happen every time. Also look for the Jumper meant for flashing the BIOS, I hope it is in its correct position............sodeep
On the motherboard of all computers is a small battery. It looks like a watch battery. The purpose is to keep a small amount of electricity going to the motherboard so the time and date can stay current. When that battery gets low on power or dies then the time and date is wrong. Its called the CMOS battery and it needs to be replaced and then everything will return back to normal. You can do it yourself if you're confident or take it to computer repair shop.
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Hi, if you're system does not keep the correct date & time it is possible the cmos/bios battery on the motherboard has reached it's max life span. The bios battery recharges only when the system is on. In many cases even when the system is on & you correct the date & time & notice the time is off the battery needs replaced.
How to replace cmos battery: http://www.computerhope.com/issues/ch000239.htm