Question about IBM ThinkPad R40 2681

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I would like to replace the cmos battery but i can't find it on my ibm thinkpad 2681? F1 please?

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Hi,
Download this manual you can find CMOS battery

http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/13n6183.pdf

Posted on Sep 27, 2010

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You may visit some PC sites.......

Posted on Nov 12, 2010

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1 Answer

Left my laptop in storage 4 3 yrs when i fired it up it wont get past check time and date then it asks for a code. heck i cant remember and its upsetting trying to let kids use it


The CMOS battery that keeps the date and time needs to be replaced.
The battery is fairly inexpensive however, finding one, depending where you live may be the biggest hurdle.
Replacing the battery is also simple IF you feel comfortable disassembling the laptop.

Apr 02, 2011 | IBM ThinkPad R40 2681

1 Answer

Laptop not used for some years. could enter bios OK to reset Replaced U/S CMOS battery with no problem. Restarted............ Message press F1 ibm bios setup press F11 to invoke IBM product recovery...


I received an IBM laptop with same issue a few months back. The error message due to the drained out CMOS RTC (coin-cell battery), which retains and other BIOS settings.
The system is OK and all you have to do is to get the CMOS/RTC battery replaced by the a professional.
Good Luck!
CreativeTECH

Dec 31, 2010 | IBM ThinkPad R30 2656 Notebook

1 Answer

Bios pass word


You can clear bios with factory defaults reset.
For that open back cover of your laptop.
Then pull cmos cell from motherbord for 10 minutes so all bios settings are defaults.
Then put again cmos cell in it's position then it not ask password.
Let me know if you need more assistanse.
Thanks.

Sep 18, 2009 | IBM ThinkPad R40 2681

1 Answer

Problem with ibm laptop


Hi,
Error 0250 means that the BIOS battery is dead and has to be changed, they are usually located hidden in the memory panel underneath the laptop and can be covered in red, blue or yellow plastic.

To boot into windows hit the F1 key when you see the IBM logo, go into the BIOS utility and set the time and date, save the changes and exit the BIOS, make sure you have AC power plugged in when you do this as it will not remember the time and date and you will have to do it again.


Good luck.

Jul 01, 2009 | Lenovo ThinkPad R400 Notebook

1 Answer

Motherboard is dead


This is the part number for your motherboard:

91P8862 or 91P7879

Both are compatible with your model.




Jun 01, 2009 | IBM ThinkPad R40 2681

1 Answer

How do I replace a hard drive on my IBM Thinkpad R40 Type 2681-CTO?


You can find instructions here:

ftp://ftp.software.ibm.com/pc/pccbbs/mobiles_pdf/13n6183.pdf

On page 70

Hope that helps!

Mar 06, 2009 | IBM ThinkPad R40 2681

2 Answers

I forgot my bios password


Laptops often do not have a dedicated CMOS battery, but use a hardwired device which you have to unsolder and solder back.
You don't want to do that without some decent experience.
There are two basic kinds of passwords that will be prompted for by the IBM BIOS, computer and HDD. (You can tell the difference by the icon prompt).
If this is a HDD password, there are no options for recovery in the US. Federal laws prohibit possession of the software to access the secure portion of the disk. The computer passwords are also not able to be cleared locally.
The unit can be sent to an IBM's maintenance and support center and they will either clear the PW or in some cases replace the planar. If you just purchased the laptop, contact the previous owner for the passwords. If not, then sending it in for maintenance is your best bet.

Sep 26, 2008 | IBM ThinkPad R40 2681

2 Answers

Boot sequence


161 and 163 error means you have to change your CMOS battery. open the laptop, change the cmos battery and you should be able to set the date and time.

after which you can access the bios by pressing F1 upon boot up and change the boot sequence after that

Mar 30, 2008 | IBM ThinkPad 380ED

1 Answer

Replaced cmos battery


Try this:

Press and hold F1; then power on the computer. Hold
F1 until the “Easy-Setup” menu appears.
If you have set a password, the “Easy-Setup” menu appears
after you enter the password.


Plagiarized from:

http://www.wimsbios.com/phpBB2/topic9023.html

Mar 28, 2008 | IBM ThinkPad 600X Notebook

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