Question about IBM ThinkPad T43 Notebook

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T43 motherboard question

I would like to find a "map" of what is where on the ThinkPadT43 motherboard. Can anyone direct me to such a graphic? TIA!

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Re: T43 motherboard question - IBM ThinkPad T43 Notebook PC Laptops

How can i remove bios password on this model

Posted on Mar 22, 2008

Re: T43 motherboard question

Hi, usually the schematic diagram comes with the unit, or u will nneed to fetch the manual.. let me know

Posted on Jan 05, 2008

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T43 interchangeable parts

Motherboard for T40 series is also used in T41, and T42 series.
Motherboard for T43 series is different.

The T40, T41, and T42 series uses an Intel 855PM Mobile motherboard chipset.
The T43 series uses an Intel 915PM Express Mobile motherboard chipset,

Intel 855PM Mobile motherboard chipset,

Intel 915PM Express motherboard chipset,

There are plenty of T43 motherboards available.


A) Remove ALL power.
Remove the AC adapter (Charger), and Battery. (IN that order)

B) Use an ESD wrist strap, and connect it's alligator clip to a good ground source.
(Electro Static Discharge)

Average cost is around $3 to $6, and available all over.
(I connect to an unpainted surface, of an open, empty desktop computer case )

C) Use a multi-compartment container for the various screws you will remove.
Label each compartment for the area the screw/s come out of.

(You can use a clean egg carton, if no multi-compartment container is available. Label each egg holder )

SOME screws look VERY similar to other screws. DO NOT mix them up.

D) Service Manual: (Free)

Scroll down to the line that begins with - ThinkPad T20. (T20 in blue)
Scroll across, and click on - T43

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the file name (T43) it may take up to 30 seconds, before the first page comes up.

Have problems using the manual post back in a Comment.

1) If this is your first time you may want to make notes, and drawings.

Use a digital camera, or video camera if available. (Use good lighting)
It's nice to have a Service Manual, but even better to have your own personal record, in case you are interrupted.

2) The motherboard lifts out at an angle. Replaced at an angle also.

3) Make SURE all cables are plugged in tightly, AND rerouted back through the SAME channels, and latches, when reassembling.

4) Keyboard:
The tab indicated in the illustration on Page 87 (PDF file page number)
is above the two keyboard keys shown, but is below the height of the keys.
It is a rectangular tab that you depress with a thin tool. Then the top of the Keyboard pops free.

For additional questions please post in a Comment.


Apr 08, 2012 | IBM ThinkPad T43 Notebook

1 Answer

Computer speakers do not work

Maybe you need to reinstall the driver for your sound card as what ever you installed may have currupted the original sound driver.
I hope this helps.
Have a good day and good luck.

Nov 20, 2009 | IBM ThinkPad T43 Notebook

1 Answer

Vertical lines on thinkpad T43p screen.

You have identified the fault is the video card, I am in agreement. The fault is on the motherboard and a replacement motherboard is the only fix. This may not be a cost effective solution, I would recommend you put your money towards a new laptop.

Jun 27, 2009 | IBM ThinkPad T43 Notebook

1 Answer

Hi, The display got reversed in my T43 Thinkpad.I was not able to see the Icons on the desktop and the total screen got reversed.Can anybody help me fix this?

Right click on the desktop and see if there is an option called graphic options, if there is, go in there and change the screen around in the directions that it allows you to.

If you don't have that option then hold down the CTRL and ALT keys while pressing any of the arrow keys to change the direction of the screen.

One of these two ways should put the screen back to normal as far as the direction is concerned.

If you have an icon problem that is something different altogether.

May 18, 2009 | IBM ThinkPad T43 Notebook

1 Answer

IBM T43 Power Management Chip

my battery won`t power my laptop and someone sade it was the power managment chip do you know where that chip is located on the motherboard please email me at thank you, or send me a photo of were it is on the motherboard

Nov 21, 2008 | IBM ThinkPad T43 Notebook

1 Answer

Thinkpad T43 wont get any AC power

I've run into this many times with IBM machines. The power management chip on the motherboard has failed. Unfortunately, you will have to replace the motherboard in order to fix the problem.

Aug 13, 2008 | IBM ThinkPad T43 Notebook

1 Answer

Driver thinkpadt43 not working

well here is a direct link to all Windows XP drivers for for laptop model - - if i was you i would download the drivers for your network adapter on a computer that you can transfer the files onto a CD or a USB drive - once you get them on your laptop then you can use your connection to get all the rest - hope this solves your problem.

Apr 19, 2008 | IBM ThinkPad T43 Notebook

3 Answers

Can i change graphic card on my old IBM T20?

Good afternoon, Yan!
Wish I could give you better news, but unfortunately, the video card is a part of the motherboard and not replaceable.

If you need any additional information, please feel free to ask. If this information has assisted you in the resolution of you problem, please return here to give my assistance an appropriate final rating. If this information has answered your question and/or lead to a resolution, please rate it as "Fixya!".
Thank you, and have a super day!

Dec 10, 2007 | CMB T43 750 Notebook

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