Question about IBM ThinkPad T23 2647 Notebook
I recently replaced the mainboard because when I turn on the power the light would come on but no response from anything. Now the screen lights up, the drives start up and the fan turns on and off repeatedly. I went through and checked all connections again. I am out of ideas. Can you please help!!!
The fan cycling problem on the T23 series usually indicates a loose solder or missing inductor which is usually on the underside beneath the PCMCIA slot. If you replaced the mobo yourself you may have flexed what is a weak solder joint loose - you will need to pull the board and resolder this or have someone else do this for you. You can sometimes get the laptop to start by flexing the assembled laptop gently around the PCMCIA slot and if so then that almost always means an inductor problem. You can find some photos by googling (images) "T23 mobo" or "T23 motherboard".
Posted on Feb 20, 2008
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Posted on Jan 02, 2017
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