Solved: CMOS battery - HP Support Community

jprover · ‎03-08-2015

My HP Touchsmart 300 resets the date to 2001 every time it is switched on. I have Googled the problem and the most likely solution is to replace the CMOS battery. Which of the panels on the rear of the computer gives access to the battery and is it fairly straightfoeward to replace?

Thanks for your help.

erico · ‎03-08-2015

@banhien

The RTC battery is actuallly pretty easy to replace in this model. All it takes is patience and organization to perform the task.

You are correct. A flat CMOS battery will cause the BIOS to not retain the system date and time. It must be replaced with a new battery. You will need a CR2032 battery which can be purchased at a drugstore, Walmart or a electronics store.

The panels at the rear of the PC are quite straightforward to remove and replace. You will need to get to the motherboard to replace the RTC battery.

See the video at the following document. See minute 5:20 where you can see the RTC battery.

I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"

View solution in original post

banhien · ‎03-08-2015

Hi,

What is the model/product of your "HP Touchsmart 300" (must be HP Touchsmart 300-xxxx" ?

Please check the following post.

http://h30434.www3.hp.com/t5/TouchSmart-PC/TouchSmart-300-1007-CMOS-Battery-Replacement/td-p/3552225

Regards.

BH
***
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

erico · ‎03-08-2015

@banhien

The RTC battery is actuallly pretty easy to replace in this model. All it takes is patience and organization to perform the task.

You are correct. A flat CMOS battery will cause the BIOS to not retain the system date and time. It must be replaced with a new battery. You will need a CR2032 battery which can be purchased at a drugstore, Walmart or a electronics store.

The panels at the rear of the PC are quite straightforward to remove and replace. You will need to get to the motherboard to replace the RTC battery.

See the video at the following document. See minute 5:20 where you can see the RTC battery.

I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"

jprover · ‎03-08-2015

Thanks for the swift reply. The full model is 300-1125uk

I have read the post that you provided a link to, and I may well end up taking to a professional! Just thought I'd ask if it was relatively simple.

Many thanks.

jprover · ‎03-08-2015

Many thanks. After watching the video, I felt confident enough to give it a go and it seems to have worked. Not really that difficult is it? Just a load of screws to remove and replace!

Thank you,

jprover

erico · ‎03-08-2015

@jprover wrote:
Many thanks. After watching the video, I felt confident enough to give it a go and it seems to have worked. Not really that difficult is it? Just a load of screws to remove and replace!
Thank you,
jprover

Not difficult at all. That was why I posted it. I was a bit surprised by your initial response, but am pleased that you had the confidence to give it a go after thinking about it. You saved youself some cash.

🙂

I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"

jprover · ‎03-08-2015

My initial response was actually to the other reply I got, which said you should perhaps take it to a professional. Your video convinced me to have a go, and the rest is history.

Thanks again.

CMOS battery

Create an account on the HP Community to personalize your profile and ask a question