Question about IBM ThinkPad T40 2373 Notebook

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I have IBM LAPTOP thinkpad T43 SERIES. it was working tiil yesteraday. Suddenly it turns switch off. I thought its the problem with AC adapter. I bought a new one. It shows it turn it on but its switch off. Its not even starting.I tried to remove the battery and connected the AC adapter. its not even starting as like no power is going to the computer.Any help to figure the y its happening is really appreciated

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It's not necessarily hardware related, can you boot into Bios? If you can try to boot info safe mode, that's F8 for most PCs. I would suspect something with your motherboard drivers, then again it could just be your battery. Not all laptops will operate with the battery out, there is some kind of failsafe to prevent overheating in some, because without a battery the power supply can be fried sometimes.

Hope this helps

Posted on Dec 04, 2008

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My IBM tpad T43 dont work with AC adapter the AC adapter is ok.How do u check the AC in-port ,powersocket or how do u change it.can it be un other problem!? It's work with batteri.Regards Anders


To check the AC adapter, you need a multimeter to measure the voltage and current of the output. It it is fine, then your battery or computer may have hardware issue.

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Hi,

To turn on the wireless on IBM Think Pad 2628 A20m you can try the below options

IBM
IBM General - Some models have the wireless slide button on the side of the laptop.
IBM DV series - use the antenna-like button found on the upper section of your keyboard.
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Is it not physically connected or is there an on off slider switch thats turned off ?

Still does not explain why its not showing up in device manager.

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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.

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1 Answer

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Visit Lenova's troubleshooting page at
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4YQJZX

I assume you have verified the battery and AC adapter with another machine or a voltmeter.

If none of the above get it going, you most likely have motherboard issues, possibly a blown fuse.

Or possibly a keyboard Power On switch problem.

Good luck.

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