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Date and time keep changing on laptop?

ascendant

ascendant

Senior member
Ok, I was thinking the reason my date and time keep changing on my laptop was because I needed to replace the CMOS battery. However, even when the computer is plugged into the wall, the date and time will occasionally change. Considering it is getting constant power at that point and the date and time still fail to stay in memory, I'm not sure if it actually is my CMOS. Considering getting to it in my laptop would be a huge hassle, I wanted to ask first and see if with a bad CMOS this can still happen even while plugged in, or if that might be an indicator the problem is elsewhere? I had to re-install the OS (Win 7) once in the past and it didn't solve it, so it does seem to be something related to hardware. I also looked through all my bios and could not find anything that might be causing the problem there.
 
What's the laptop, and how old is it?

Does it only change on a reboot?

Some have a rechargeable battery for the BIOS, and if that's bad, it could very well lose settings even if plugged in, provided it is only changing when rebooting.
 
Cerb said:
What's the laptop, and how old is it?

Does it only change on a reboot?

Some have a rechargeable battery for the BIOS, and if that's bad, it could very well lose settings even if plugged in, provided it is only changing when rebooting.
Click to expand...

It's a Toshiba Satellite L655. No idea how old it is as I got it used from a family member.

I thought I made it clear in my original post, but no, it does not change only during reboot but during random times even when it is plugged in.

As far as what you mentioned about the bios battery, is there any way to test these types of things with these laptops? I'd prefer to fix it myself, but don't want to risk taking it apart and not being able to figure out how to get it back together (or not fixing the problem), or more likely, just spending hours and hours doing so.
 
Check to see if your computer is set for the correct time zone. If this is the case, then whenever your computer syncs with the NTP server, it will revert back to that region's correct time.
 
ascendant said:
I thought I made it clear in my original post, but no, it does not change only during reboot but during random times even when it is plugged in.
Click to expand...

Does it change while the machine is running? In other words, can you be sitting in Windows and the clock suddenly jumps forwards or back?
 
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