Question about IBM ThinkPad T20 2647 Notebook

2 Answers

IBM Thinkpad T20 CMOS Battery Replacement?

Hi,
Each time my Thinkpad T20 starts it points me to the BIOS where I simply set the Time and Date (which shows incorrectly 00:00 etc.), Save and Exit then all is fine.
Does the CMOS Battery need replacing?
If so, where can I find details of what battery is required and a description of the process for changing it.
Thanks

Posted by on

  • 1 more comment 
  • stuff4 Jul 07, 2008

    Thanks Pyrhyc!

    Is the keyboard easy enough to remove?

  • Anonymous Jul 10, 2008

    I have the same problem, I ghanged the cmos battery and still have the same message.

  • mj1967 Mar 25, 2009

    I can see the CMOS battery. Now how do I remove the keyboard? Which and how many screws do I have to take out without doing any damage?

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

Hi-- no need to take out keyboard turn over laptop and take out main battery, underneath is the cmoss battery in a yellow sleeve, it is in a black square surround with one small screw holding it in place, take out this screw and with a tiny screw driver manouvre the plastic square holding the cmoss battery out of the recess and than holding this square gentlly but firmly pull the cmoss out.beleive me it will come out, to replace just do everthing in reverse with a new cmoss battery in place.eyeball the aperture for the white connector of the cmoss and you will replace the battery.

Posted on Sep 15, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 2,028 Answers

The C-mos needs replacing. On the T20 series the c-mos is under the battery or a panel on the bottom of the machine, it looks like a large watch battery in a yellow sleeve. Once you've found it, you will see the two wires leading to the connector. Finding it is half the battle. In order to reach the connector you will have to remove the keyboard. Once you disconnect it, it will come out through the bottom. You can purchase a new one at Bestbuy.

Posted on Jun 30, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

IBM ThinkPad T20 date and time problems


Your CMOS battery is low you need to replace it ASAP

Apr 14, 2012 | IBM ThinkPad T20 Notebook

2 Answers

IBM Thinkpad will not hold date & time.


Replace the backup battery and run BIOS Setup Utility to reset the time and date. This will resolve the issue.

Sep 15, 2009 | IBM ThinkPad T22 2647 Notebook

1 Answer

Problem with ThinkPad T20


the internal coin cell battery has gone bad, it needs to be replaced.

Aug 04, 2009 | IBM ThinkPad T20 Notebook

1 Answer

Ibm thinkpad


The 161 CMOS error means the CMOS/BIOS battery is dead/flat and needs to be replaced.
The 163 CMOS error means the Date and Time could not be updated when you change the Date and Time setting. This is caused by the flat CMOS/BIOS battery.
When you replace the battery with a new one, the BIOS will go back to the default settings, go into to BIOS setting (press F2 when you boot up) and change the Date and Time, then save and exit.

Jul 29, 2009 | IBM Computers & Internet

1 Answer

Error 0271 check the date and time setting


The BIOS battery is flat and cannot keep the corrected date and time. Replace the BIOS battery anf then go into the BIOS configuration to set the time and date.

Mar 13, 2009 | IBM ThinkPad T20 2647 Notebook

2 Answers

Starting ibm 600e


Hi there.
Errors 161, 192, 163.
All three of these errors are connected to the back up battery.
To resolve this problem:
1. open memory flap on base of laptop (small philips screwdriver required)
2. find the small connector with 1 black & 1 red wire coming from it.
3. disconnect above connector and gently pull the Red&black wires. The backup battery should just pull out from under the casing.
4. get replacement battery. Either
a. call IBM spares (07900 247 490 in UK) and ask for FRU:
02K6502. UK price is about £8 + £15 delivery + VAT.
b. if comfortable with soldering iron: Carefully open the packaging on the backup battery using a sharp knife.
Remove the solder tags from the battery (these are spot welded so need to be cut/broken off). Buy a new CR2025 battery from any computer shop, jeweler, or camera shop.
Using electrical tape, insulate all round edge of battery
Solder the leads onto the new battery - note polarity. Red wire to +, black wire to -.
Using more insulating tape, wrap battery so that all exposed metal is covered.
5. put new battery into laptop (reverse steps 1-3)
6. start up computer, error 192 has gone, but still shows 161, 163. Select OK.
7. reset date & time, and OK
8. when screen shows 'O / I' restart laptop using on/off switch at side.

Good luck and thanks for using FixYa!!

Mar 05, 2009 | IBM ThinkPad T21 Notebook

1 Answer

Bios lock, ERROR CODE 0271


Hi,
Error code 0271 - Date and time error. Neither the date nor the time is set in the computer.
Run BIOS Setup Utility to reset the time and date
It sounds as though your computer has the wrong time in the CMOS. The CMOS (Complementary Metal-Oxide Semiconductors) is the chip that holds the basic startup information for the BIOS, system and its peripherals while the system is turned on and off.

If you can get into the BIOS check the date and time settings and make sure they are correct.

It may also be a case of the CMOS battery going out. When this happens your computer will tend to not keep the correct time. They are cheap and relatively easy to replace. Before buying a new batter your can try to take it out and let it sit for about 10 minutes or so to reset the CMOS and then go put the battery back in and go into the BIOS and reset the clock.

Hopefully taking the batter out or replacing it will get past your lock icon asking for the password. Just search for CMOS or BIOS default password for your brand of laptop.

Feb 03, 2009 | IBM ThinkPad R52 Notebook

1 Answer

My Windows 98 IBM ThinkPad Laptop


These errors indicate that the cmos battery is dead and needs replaced. The cmos is located under the main battery, the yellow pouch with two wires that lead to a connector. You will need to remove the keyboard to get to the connector. Replace the cmos, set the time and date, and you're good to go.

Aug 07, 2008 | IBM ThinkPad T20 2647 Notebook

2 Answers

"Critical Battery Error" even with not battery in laptop


Hi,
Do you have another power supply to use?
Also, is it keeping correct time and date?

Dec 14, 2007 | IBM ThinkPad T20 2647 Notebook

10 Answers

Thinkpad 380ed


1) This is a typical problem when the CMOS battery is very weak or dead, it will continually display the date and time and reboot with the same errors until you change the CMOS battery. On this model it is behind the door that houses the memory chip, above the battery, if you have the laptop turned over and battery closest to you. <--best bet, its a dead CMOS battery.

2) You can get to the BIOS to run tests, one of 2 ways, either hit the ESC key and other keys to get a 301 error or hold the F1 key and boot, you should get into BIOS. (You probably won't be able to do this until you replace the CMOS battery.) From there you can run diagnostic tests on various components.

3) Lastly, you can update the BIOS. From inside the EASY-SETUP bios you should be able to copy the BIOS part number, date, etc. Look for the BIOS update based upon model # either thru a search on the web or directly on the IBM website (a search on google of "bios update thinkpad 380ed" will bring up a link for the IBM page.) If you choose to do a BIOS update, read the directions carefully and remember not to power off the machine while the update is happening. If you've never updated a BIOS before, get someone who has to walk you thru it before attempting it by yourself.

GOOD LUCK :)

Sep 19, 2007 | IBM ThinkPad 380ED

Not finding what you are looking for?
IBM ThinkPad T20 2647 Notebook Logo

3,354 people viewed this question

Ask a Question

Usually answered in minutes!

Top IBM Computers & Internet Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18381 Answers

Computer Links

Level 3 Expert

2385 Answers

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

Answer questions

Manuals & User Guides

Loading...