Question about IBM ThinkPad T40 2373 Notebook

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IBM LAPTOP T40- NO POWER

WAS WORKING FINE .NOW IT HAS NO POWER WITH BATTERY ALONE OR PLUGGED IN.I MEAN NO LIGHTS AT ALL, NO BATTERY CHARGING LIGHT,NO NOTHING.

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I had a T20 with the same problem.  Com to find out it was a bad power supply cord.  Replace the whole thing.  Get one off ebay really cheap.  That should solve your problem.

Posted on Mar 02, 2009

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My ibm-t40 think pad will not charge


What do you mean not charge?? If you have the AC cord in and the battery out will the laptop turn on with out the battery? If so your battery is dead and this is a common issue.

I suggest contacting IBM or finding one on ebay as they are much cheaper!

Jan 20, 2010 | IBM ThinkPad T40 2373 Notebook

3 Answers

Tecra 8000 won't recognize battery


If you unplug your laptop from wall power, will it run on battery power?

May 27, 2008 | IBM ThinkPad T40 2373 Notebook

1 Answer

I have an IBM think pad T40 that does absolutely nothing when I try to turn it on. It's actually my daughters, she sid it was working just fine then she shut it down and when she came back an hour later it...


Try taking the batter out and booting using just the power cord and Vice Versus'. Also when the power is plugged in does the charging light (Battery Indicator) blink or light up? If you know the Power Supply is good, then the Mother Board may have fried. If it's under warranty, take the Hard Drive out and send it in.

Dec 20, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

I have had my IBM T40 Laptop for over 8 years now. I have never really traveled with it using the battery only. The battery charge light has recently been showing amber and not reaching fully charged. Is...


Normally batteries need tro be constantly used or they drain out of power. Long term of non use kills the batteries, in this instance I think is what has happened. You will find that a new battery should solve your problem. I hope this helps.

Nov 03, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

Not charging


which green light?

light from the ac power adapter or the light from the battery?

if ac power adapter you are referring to try a diff power wall socket if ac power adapter still off then replace ac power adapter alone.

if battery light is off but the laptop works fine with ac adapter alone try updating the laptop BIOS.

if ac adapter light turns off when it plug to the laptop replace motherboard.

Oct 13, 2009 | Dell Latitude D531 PC Notebook

1 Answer

Power connector of T40 think pad loosen


if you think your adapter really works fine then you have a  motherboard issue.

May 28, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

IBM T40 the battery is fully charged but will not power on with the ac


Have you disabled your battery
is your battery showing
check control panel\power options
does your battery show as 100 % charged
then you can also check device manager for battery
Let me know

Jan 29, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

Defintely getting power, but not switching on.


There are several possibilities. Let's start with the easiest two. First the battery, take it out and try starting up only with the power supply. Then the memory chips. If a memory chip fails it can cause a no start in IBM's. Take the memory out and try it. Then try it, putting them in one at a time. If these don't work, then I'm afraid your problem lies within. Namingly the power management chip on the motherboard. The pm chip controls the power input, and allows such functions as switching between battery and AC, and battery charging. The pm chip can go without warning, and just because it lights and shows charging doesn't mean this chip hasn't malfunctioned. I've had several IBM's come through my shop that have experienced the same problem you're describing. I've also had them with problems like; it will only power with the battery, won't charge the battery, will charge battery and only run with battery shuts down while charging, only power under AC, etc... all pm chip related issues. Unfortunately, the only solution is motherboard replacement.

Jun 19, 2008 | IBM ThinkPad T40 2373 Notebook

4 Answers

My IBM do not turn on.. IBM A21M..


check power ac adapter and batery if the batery is ok or charge do a test to the hard drive and memory ram loock on BIOS

Jan 03, 2008 | IBM ThinkPad A21m 2628 Notebook

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