• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
Are you having HotKey issues? Click here for tips and tricks.
Check out our WINDOWS 11 Support Center info about: OPTIMIZATION, KNOWN ISSUES, FAQs, VIDEOS AND MORE.
HP Recommended
OMEN 30L Desktop - GT13-0054na
Microsoft Windows 11

I have a HP Omen desktop. Recently on startup I am getting a CMOS reset error. When shutting down I have been disconnecting from the power outlet. I then tried not disconnecting from the power outlet and then it starts up normally. I deduce from this it is the CMOS battery and assume that when connecting to a mains power supply that the CMOS is powered from that, is this correct? There is no reason that I need to disconnect from the power outlet. Is there any reason why I shouldn't carry on in this mode and not bother with the CMOS battery?

1 ACCEPTED SOLUTION

Accepted Solutions
HP Recommended

Hi:

 

If you have your PC plugged into a power surge protector there should be no need to unplug it from the wall socket.

 

I would agree with you that not having the PC plugged in does wear out the coin cell battery faster than leaving it plugged in and turned off.

 

However, the next time you have to open the PC up for something like routine cleaning, you may want to replace the coin cell battery at that time.

View solution in original post

3 REPLIES 3
HP Recommended

Hi:

 

If you have your PC plugged into a power surge protector there should be no need to unplug it from the wall socket.

 

I would agree with you that not having the PC plugged in does wear out the coin cell battery faster than leaving it plugged in and turned off.

 

However, the next time you have to open the PC up for something like routine cleaning, you may want to replace the coin cell battery at that time.

HP Recommended

Thank you Paul for your reply.

 

HP Recommended

You're very welcome.

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.