Question about IBM ThinkPad A21m 2628 Notebook

2 Answers

System Each time I unplug and replug my laptop in and start it up, the system seems to be "forgetting" the correct set-up for the date/time. I have to manually reenter it before the laptop will continue to start up.

Posted by on

  • 1 more comment 
  • cidergirl Feb 07, 2008

    Actually, this happened after I replaced the c-mos battery.

  • cidergirl Feb 07, 2008

    The current battery is brand new.

  • cidergirl Mar 12, 2008

    Are you referring to the little yellow round battery? If so, it is brand new. I put it in about a month ago. Since that time I have to reenter the date and time before continuing with boot-up.



2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 29 Answers

The internal battery needs replacing. Must be the original and they die after a time.

Posted on Mar 12, 2008

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

Change the c-mos battery which is present inside the laotop

Posted on Feb 07, 2008

  • rohan Feb 07, 2008

    you are using a new c- mos battery or older one ,

    else change for a good newer one c-mos battery.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

The system clock will not stay set, when I turn off laptop the clock stops and calendar stops . I reset it every time I turn it back on so I receive all up to date updates . Windows updates are set to ...

You need to set the correct date and time in your system BIOS. To access that you need to press the correct key when the computer is first booted (usually DEL or F10/F2/F11).
Most computers will have a message stating press xx Key to enter setup or etc.
If this problem persists even after setting the correct time in your BIOS, your laptop needs a new CMOS battery. I recommend having a professional do this.

May 09, 2011 | Acer Aspire 6920-6422 Notebook

2 Answers

I forget the bios paswword how i can remove


There is a solution for your problem,

you have to remove *********** board battery cell from your laptop & than start your laptop once.

after that you shutdown your laptop & than you fix your battery again in your laptop's motherboard.

after that it will not ask you for any password.


Dec 30, 2010 | Toshiba QOSMIO F15-AV201 Notebook

1 Answer

My acer aspire 5520 when i press power fan comes up then shut

From your brief description, it seems that your hardware is starting correctly, and then it tries to load Windows. Windows then fails to load fully, and so Windows forces the computer to restart.

So, turn the computer on.
Immediately press F8 (again and again) until a "start-up" menu is displayed. Select "Safe Mode" and see if Windows will start.

If it does, use the "System Restore" application within "System Tools" within "Accessories" to go "back-in-time" to a date/time when your computer *was* working correctly. Restore to that date/time.

Apr 02, 2010 | Acer Aspire 4720 Notebook

1 Answer

Last six i didn't use my dell gx270 now i forget its bios password .Plz help me

You'll have to remove the the RTC clock battery to reset the BIOS, it's located on your motherboard. It's usually a coin-sized metallic thingy placed in a holder.

Unplug the power cord, remove the battery and push the frontside power button a couple of times to bleed it, then leave it for 5 minutes. Then replug it and start it up without the battery and check that it's reset (i.e. you should now be able to enter the BIOS hassle free).
If it's not the case, reboot the computer and repeat.

Turn it off and unplug it again and put the RTC battery back in place, and don't forget to set the time and date since it's now reset.

Feb 07, 2010 | Dell OptiPlex GX270 PC Desktop

2 Answers

Will laptop work with dead cmos battery?

Yes, but each time you start the computer you have to enter the BIOS to set the proper time and date. This is essential for certain progra,s to run correctly, when the computer shuts off, everything will be reset once more.

Oct 08, 2009 | HP Pavilion dv1000 Notebook

1 Answer

My HP Dv6700 will not start up. At times, it will

Dear User,
It seems that the files of operating systems are got corrupted due to virus or due to abnormal shutdown.
So please try to start it in safe mode and if you are successful in starting in safe mode then restore your system to the previous Date.

hopefully your problem will be resolved. and if your still got problem then you have to repair your operating system with using the operating system installation disk.

Note:- please dont forget to RATE my solution

Sep 08, 2009 | Computers & Internet

1 Answer

Toshiba satellite 1410

This is the REAL TIME CLOCK power supply inside your laptop.It maintains the system configuration and clock/calendar. Do not try to replace this yourself unless you are experienced,you could lose everything on the system and worse still these batteries can explode!! Connect the AC adaptor and let it charge for at least 24hrs. Press F2 to enter the bios. Set correct time and date If it Persists take it to a dealer to be replaced

Aug 24, 2008 | Toshiba Satellite 15" Flat Panel LCD...

1 Answer

Does not turn on until you unplug cord, and replug in

its protecting ... the system just detected some other problems 2 ur system or power supply.. modern television has an auto shutdown protector circuit... i just said whwt i know... tnx

Jul 19, 2008 | Sony KP-53V80 53" Rear Projection...

2 Answers

My computer went back to older clock date as 1610

try starting your computer in safe mode and see if you can do anything productive there, like scanning for viruses or spyware. also check if you can do the following:
CTRL+ALT+DEL (open task manager)
goto Start>Run>Regedit (open registry editor)
goto Start>Control Panel>Display>Properties (change display settings)
right click on clock at tray and change the current time to correct settings

if you cannot do any of these activities, then your computer may probably been compromised by a virus or malware.

Jan 02, 2008 | Dell OPTIPLEX GX150 PIII-1.0GHz 256MB 40GB...

Not finding what you are looking for?
IBM ThinkPad A21m 2628 Notebook Logo

Related Topics:

76 people viewed this question

Ask a Question

Usually answered in minutes!

Top IBM Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18425 Answers

Alun Cox

Level 3 Expert

2678 Answers

pankaj rautela
pankaj rautela

Level 3 Expert

1252 Answers

Are you an IBM Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides