Question about IBM ThinkPad T23 2647 Notebook

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T23 Thinkpad turns off during boot after restart

I have a Thinkpad T23 and when I restart the laptop, it will turn off half way through the boot. Same thing happens if I try to reboot immediately. If I wait 20 minutes and then reboot, it will work.
Although not as often, it will sometimes turn off serveral minutes after boot.

Any idea what is going on?

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  • 32,281 Answers

My guess would be ;-
A power supply problem with the battery and/or power adapter
The most likely one.
The CPU is overheating and shutting down and if you wait a while and it will power it up again, it will then run for a while and shut down again.
This can be caused by a faulty fan (its not spinning and needs to be replaced) or the vents are clogged with dust (needs to be cleaned and you may need to remove the fan assembly to do this).

Posted on Jan 27, 2009

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Posted on Jan 02, 2017

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Try making sure your keyboard in plug in nice and tight.
If it is, then consider replacing that first. I bought a used one on Ebay and that fixed my powering up problem. The power button wore out.
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Ibm laptop t23


Your laptop is in sleep mode. Hence the z. Push your power button for 5 seconds, and the unit should turn off, and be able to boot properly.

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3 Answers

T23 wont boot


I would unplug it and remove the battery. Plug it back in and try without battery, if it still doesn't work, unplug the power again and remove the memory (RAM). Plug it back in and try again without RAM, if it beeps then the motherboard is probably good. If you had more than one piece of RAM, try one at a time and see if you get it to boot with one of them.

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