Question about IBM ThinkPad T40 2373 Notebook

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

I have a IBM T40 the battery is fully charged but will not power on with the ac adapter unplugged. On the battery I get a quick flash of lights when I hit the power button and hear the fan but nothing. I can plug the ac in and it powers right up and shows a fully charged battery.
One flash of the lights and I hear the fan come on for a brief second .

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  • ppman30 Feb 01, 2009

    my battery is fully charged but the lap top wont swhich on on less its on the mains

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  • IBM Master
  • 1,102 Answers

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

Posted on Feb 03, 2009

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1 Answer

Hello I have an IBM T40 and I have a problem. when I connect the power cord , the battery LED lights that stay lit orange. I press POWER button and will not start. only hear a noise and flashing orange...


Hi,

Remove the battery, and unplug the A/C adapter and hold down the power button, for 40 seconds.Soon your laptop will reset,and run well.Now you will install all the accessories and start.

Hope this helps you.

Feb 25, 2011 | IBM ThinkPad T40 2373 Notebook

2 Answers

My IBM T40 boots to a black screen with the "z"(light at top to right of power.


Try these steps:

1. Remove battery and unplug AC adapter
2. Press power on button for 30 seconds or so (one min is also too)
3. Attach battery and plug into wall
4. Power "ON" as normal

If you are still getting the "Z" and a black screen then I would have the video card or hard drive looked at and replaced. Start with the video card and then look at the hard drive


thinkpad-t42-wont-boot.html">http://www.techsupportforum.com/hardware-support/laptop-support/234433-ibm-thinkpad-t42-wont-boot.html

Feb 17, 2010 | IBM ThinkPad T40 2373 Notebook

3 Answers

Battery is fully charged but it still wont power up no lights when plugged in to charge


Hook up only the ac adapter to the DS to see if it turns on. If it does then we know the ac adapter works. We know the battery got fully charged but the system isn't turning on with the battery that is fully charged up.

I would say your battery is defective but you won't really know until you fully charge up a known good working battery and test it out.

Jun 29, 2009 | Nintendo DS Lite Console

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

No response


First follow procedure to try to reset the power.
  1. Unplug the ac adapter. Keep ac adapter unplugged.
  2. Remove the battery and keep the battery unplugged.
  3. Hold the power button down for 15-20 seconds. (Nothing will appear on the display and none of the lights will light up.)
  4. Release the power button and plug in the ac adapter ONLY. (Please note that a power indicator light should be lit on the ac adapter when it is plugged in).
  5. Normally power on the notebook.
  6. If the unit does not power on, remove the ac adapter and insert the battery into the system.
  7. Plug the ac adapter back into the system, the battery charging indicator light will light up.
    If the battery charging indicator light does not light up, the ac adapter may not be providing proper power to the unit, and may need to be replaced.

May 23, 2009 | Acer Computers & Internet

1 Answer

Power connector of T40 think pad loosen


If you can't charge the battery and you know the battery is good, hook up just the ac adapter to verify that the laptop can turn on without the battery hooked up and if your laptop turns on then you know both are good.

At that point I would say since its not charging then it could be that the dc jack has some bad solder points on the bottom of it and need to be resoldered. Sometimes if the solder goes dry and cracks just a bit if can cause the adapter not to charge the battery.

If that doesnt fix the problem the the motheboard is bad and would need to be replaced.

Apr 09, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

When I plug in my ac adapter into my computer to charge it the green light turns off and won't charge my computer


The diagnostic procedures from the Dell User Guide are as follows:

Total Power Failure When Using a Battery
If an AC adapter is not connected to your computer, the computer's power source
is a battery. If the battery indicator flashes amber or is a steady amber, the
battery needs to be charged. If the battery is flashing green and amber, the
battery may be defective. To troubleshoot this problem, use the following
procedure.
1. Turn off the computer and peripherals, and disconnect them from AC power.
2. Reseat each installed battery by removing it and then replacing it.
3. Turn on the computer. Does the green power indicator light up?
Allow one minute for the computer to initialize its components before checking
for signs of power.
Yes. Continue to step 4.
No. Use the AC adapter to connect your computer to AC power. If the computer
operates normally when using AC power, go to step 7. If the computer does not
boot when using the AC adapter, see the previous subsection, "Total Power
Failure When Using the AC Adapter."
4. Does the battery indicator flash amber or show a a steady amber light?
Yes. The battery needs to be charged. Go step 5.
No. Go to step 7.
5. Connect the computer to AC power, and fully charge the battery.
For instructions, see the topic titled "Charging the Battery" in the online
System User's Guide.
6. As the battery charges, does the green battery indicator light up?
Yes. Go to step 9.
No. Go to step 7.
7. Is the battery indicator flashing green and amber?
Yes. Your computer may be in a hot environment. Charging the battery in this
condition may affect the life span of the battery. Continue to step 8.
No. The problem is resolved.
8. Disconnect the computer from AC power. Is the the battery indicator still
flashing amber?
Yes. You may have a defective battery. Continue to step 9.
No. The problem is resolved.
9. Remove the battery, and press its test button. Is the uppermost indicator in
the charge gauge of the battery flashing?
Yes. You have a defective battery. Continue to step 9.
No. The problem is resolved.
10. If a spare battery is available, fully charge it, and then install it in the
computer.
11. Turn on the computer. Is the power indicator off?
Yes. Your original battery is defective


good luck

Apr 05, 2009 | Dell Inspiron 6000 Notebook

1 Answer

Acer laptop shut of during power outage .


From the Acer website:
Product
Notebook
Issue
Power Issues or Will not Boot
Solution
If the notebook does not power on:

Make sure the ac adapter is correctly plugged into the notebook and into the power cord.

If everything is plugged in correctly and it still will not power on, follow these steps to complete a ‘power reset' of the notebook.
  1. Unplug the ac adapter. Keep ac adapter unplugged.
  2. Remove the battery and keep the battery unplugged.
  3. Hold the power button down for 15-20 seconds. (Nothing will appear on the display and none of the lights will light up.)
  4. Release the power button and plug in the ac adapter ONLY. (Please note that a power indicator light should be lit on the ac adapter when it is plugged in).
  5. Normally power on the notebook.
  6. If the unit does not power on, remove the ac adapter and insert the battery into the system.
  7. Plug the ac adapter back into the system, the battery charging indicator light will light up.
    If the battery charging indicator light does not light up, the ac adapter may not be providing proper power to the unit, and may need to be replaced.
Also, depending on whether your power went down "clean" (quick and stayed off), or went down and quickly came back on and off many times. Or when it came back on "clean" (came back on quick and stayed on), or it came on then off many times, your power supply may have been damaged from the power surges Are you having any problems with any other appliances?

Feb 07, 2009 | Acer Aspire L100 PC Desktop

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