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Laptop boot issues - no post, all lights flash

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  #1  
Old 07-17-2007
Newcomer, in training
  
Member since: Jul 2007, 4 posts
Laptop boot issues - no post, all lights flash
I have a IBM thinkpad, I have had no real issues with it in the years that I have owned it.

I pressed the power on button yesterday and there was no post and all the lights stated to blink on and off.

I was unable to power it off by holding the ppower button in and had to remove the power lead and the battery.

This is something that I have not come accross before, anyone have any suggestions or hard of similar before?

Neander
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  #2  
Old 07-17-2007
TechSpot Enthusiast
  
Location: Odessa,Ukraine
Member since: Jun 2007, 472 posts
the model of notebook?
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  #3  
Old 07-17-2007
Newcomer, in training
  
Member since: Jul 2007, 4 posts
Its a IBM thinkpad T20
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  #4  
Old 07-17-2007
TechSpot Enthusiast
  
Location: Odessa,Ukraine
Member since: Jun 2007, 472 posts
try to replace the ADP3421 chip.
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  #5  
Old 07-17-2007
Newcomer, in training
  
Member since: Jul 2007, 4 posts
Thanks for the advice.

I will give that a try and let you know
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  #6  
Old 07-22-2007
Newcomer, in training
  
Member since: Jul 2007, 4 posts
I just tried to power my laptop up before starting to strip it down.

I now get a different POST.

3 short, 3 short, 1 short.


Could this still be related to the chip?

Cheers
Neander
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  #7  
Old 07-22-2007
TechSpot Enthusiast
  
Location: Odessa,Ukraine
Member since: Jun 2007, 472 posts
DIMM problems. you should check soldering of memory slots via microscopy. if contacts broken - resolder them.
the ADP 3421 death - is typical problem for all t2x series. the poor soldering of memory slots - too.
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