NP9150 No Longing Keeping Time

I've had my 9150 since early January, so it's been in my ownership for ≈4 months. Recently (since yesterday) my laptop's time has been off by varying degrees. At most it was 7 hours off, but I've noticed it at 30 minutes off. I have a large rainmeter clock on my desktop, but after checking, it's the system time that is off, and not the rainmeter clock. Every time I notice it, I go to Date and Time under the control panel, go to Internet Time, and "Update Now". I've done this maybe 7 times, but it still de-syncs. I've tried changing servers, but to no avail. I've also tried going to services.msc and updating "Windows Time", but that did not work either.

I run a minecraft server for my friends and I on my laptop, and I also noticed something interesting.



Here is the log from my server. At the top, you can see what the time actually was. Then, the time suddenly goes backwards. Later on, when it skips ahead was when I updated my connection under Internet Time. What I think this is showing is that the time isn't slowing desyncing, but skipping back. I could be wrong about this however, maybe the server log is just reporting it that way.

And, of course, I've tried restarting my computer. Anyone have any ideas? I think my CMOS battery may be dying, but it's had such a short life. Also, is there any way to check my CMOS voltage, short of taking out the battery itself?

Thanks

Edit: Okay, I've checked my BIOS and booted into Ubuntu, and they both report inaccurate times. I've concluded that it's definitely the CMOS battery. Does anyone have any guides on replacing the CMOS?

 

CLEVO HID P150EM - HOW TO REMOVE KEYBOARD & WIFI CARD - YouTube

Battery is next to the keyboard connector.

 

Okay, I've opened up my laptop, but the CMOS appears to be wrapped and glued down. Any idea on how to get it out? Sorry for the poor quality photo.



Also, any idea on how to get a replacement? I had assumed it would be a normal battery, not attached to anything, but this seems specialized.

 

Upon closer inspection of the battery, I found that it should be outputting roughly 3 volts. The voltage meter I used gave me 3.1 volts. So, it seems that it may not actually be the CMOS at all. Any other suggestions?

 

After putting everything back, I got an error from my BIOS (I think it's my BIOS), telling me GENERIC_BAD_DATE_TIME_ERROR



I chose recovery, but it just sent me to my GRUB menu, from which I booted to Windows 7. My time was reset to January 1st, at 12:00, so I sync'd with Internet Time, and restarted. The restart kept the right time, so I'm assuming my CMOS is still working. I highly doubt my problem has gone away though. I've also scanned my computer with MSE, so I don't believe there are any viruses changing my time.

Any other ideas anyone?

 

Well the clock crystal timing circuit could be misbehaving, the cmos reset might have helped that. Taking it out always resets the clock.

 

Yeah anything is possible; of all things to misbehave, this is pretty rare. Is that the correct setting on the volt ohm meter though?

 

I'll be perfectly honest, I'm not entirely sure it's the right setting, but I believe it is (DC, yes?).

And actually, since resetting the clock my computer has been keeping time fine. I don't know if it will slowly desync again, but so far it's been accurate all day.

Is there something I could have done to mess up the clock crystal timing circuit, if that is in fact what my problem was? Is there anyway to prevent this from happening?

Thanks for the help.

 

Bugs like this happen from time to time in consumer hardware, it may have been caught in a funny loop that is an edge case for the circuit. Typically only compensated for in military and high risk machines.

 

My clock has kept the right time all day now, I think it's been fixed. Thanks a ton for your help guys.