Question about IBM ThinkPad T40 2373 Notebook

3 Answers

T40 keeps losing video randomly

The computer starts up (sometimes) and it can get as far as the desktop, then, randomly, the screen shuts off. the computer is still on though, cause its still lit up and makes noise. ive tried an external monitor, and even that will shut off randomly. when you try to turn it off then back on again after the video has dissapeared, the monitor doesnt turn back on at all and it beeps 3 times. if you give it a few minutes however, it turns back on (sometimes). whats the problem?
could it be the video processor failed due to overheating, maybe a bus connector failure? if so how do i fix it?

Posted by on

  • Gaiaoenghus Mar 28, 2008

    Same issue, It booted,got to the desktop and then th screen flashed from black to desktop to black to a distorted desktop to black. Now I boot it up and the computer is on but the screen is black and if i wait long enough I get a lit screen that is still totally blank and black. I don't even know how to get it to boot in safe mood like this.



3 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

It's broken solder point or points on the GPU chip. It's very common with the thinkpad T40. This can only be repair permanently by replacing the motherboard or reflowing the solder on the GPU with a heat gun. There is a utube video demonstrating the reflow process.

You can confirm this is your issue by applying strong downward pressure on your laptop just above the left corner of your touchpad and turning the laptop on. If the laptop boots completely while holding this pressure, you can be sure your laptop has this issue.

Good luck!

Posted on Apr 01, 2008


I have the same problem. I am not convinced that it is a microsoft issue. Try leaving it On for a while without booting windows. eg use a linux boot disc ( it will take ages before it gets to the point where it would actually install anything and then it asks you). When I tried this mine shut off. You could also try switching off all the power save auto switch off stuff, eg when you press the power button, close the lid etc, as maybe it is a bad connection.

Posted on Mar 21, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 520 Answers

If you can get into windows for long enough go into device manager and check drivers if any crosses reinstall/update drivers.also check system information and look for forced hardware and conflicts/sharing in resources.
other than this reinstall os.
your problem seems to be software problem and not hardware.
personally you can spend a lot of time looking for the problem when in ur case(not much of a problem)it would be a lot easier to reinstall windows cos its all auto config.
if you do choose to reinstall take a note of your drivers especially video and audio most others can use generic

Posted on Mar 05, 2008

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

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.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

Why does my Toshiba Satellite L675 laptop randomly shut off?

Hi, you seem to have a suspicion that the issue might be attributable to excessive heat. This is suggested by the uses described at the time of shutdown.I would not pay too much attention to the heat coming out of the top of the machine, the temperature sensors in the machine will monitor the CPU and motherboard heat only.
It might be owerheating even thoufh it is used in a well ventilated environment.

It may be that the gan is not functioning as well as it mivht. It might be that the heatsink paste between the CPU and the heatsink is the issue. It might be that the shutdown setting for the CPU in the computer's bios is set too low.
You can choose to investigate the possibilities yourself or get the advice of a competent technician

Jun 01, 2015 | Toshiba Satellite Computers & Internet

1 Answer

Screen zoomed in zoom out

this is likely a virus, trojan issue... have you done a thorough virus scan with current software??? free

Aug 17, 2013 | Sony Computers & Internet

1 Answer

Random shut downs

Is it dusty inside? A few cans of compressed air, a can of Electronic Contact Cleaner spray and some house cleaning may help. Try this freeware program SPEEDFAN at : It show heat from the sensors and controls fan speed. May help. Can't hurt.

Jan 10, 2013 | Dell Inspiron 537 (DDCWQA1_7) PC Desktop

1 Answer

My computer keeps shutting down randomly. Also when i try to use F10 it will not respond if i try and run error checking the system will crash/shut down or give me a black screen. Basicly it randomly...

1. overheating, and automatic shutdown.
Check that the fans are working.

2. bad RAM, causing "random" crashing.
On a "good" computer, download the free 'MEMTEST86+' software, and run it, to test your RAM.

3. Leaking capacitors on motherboard, causing "voltage-spikes", leading to "random" errors.

4. Bad disk-drive. Remove the disk-drive.
Connect it as a "slave" drive in another computer,
and run 'CHKDSK' ("Check Disk") to look for problems.

Apr 16, 2010 | HP Pavilion a450n PC Desktop

3 Answers

When i shake my laptop, its screes becomes black

Do not shake your laptop.
There are components, like hard disk, graphics card, that are sensitive to shakes.

Jan 29, 2010 | IBM ThinkPad T40 2373 Notebook

1 Answer

IBM Thinkpad T40 randomly shuts off

did the monitor turn off when it is in idle mode? it might be the monitor power options (it might have been set that when it is idle for an X minutes it will turn off). check the monitor power settings.

Mar 16, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer


plz check the power supply

Jul 01, 2008 | E-Machines T6420 PC Desktop

1 Answer

Computer Screen

Re-install the video drivers or download an update from IBM if theres any available.

check the setting also, right click on desktop, click properties, go to the far right tab and check that its set correctly.

Feb 20, 2008 | IBM ThinkPad T40 2373 Notebook

1 Answer

Thinkpad T40

When starting laptop on first screen hit "Delete" or "F2" (not sure which one on thinkpads) go into the setup and check the power settings restore to default and save.

Feb 11, 2008 | IBM ThinkPad T40 Notebook

Not finding what you are looking for?
IBM ThinkPad T40 2373 Notebook Logo

249 people viewed this question

Ask a Question

Usually answered in minutes!

Top IBM Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18419 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Alun Cox

Level 3 Expert

2678 Answers

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

Answer questions

Manuals & User Guides