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

the model of notebook?

Its a IBM thinkpad T20

try to replace the ADP3421 chip.

Thanks for the advice.

I will give that a try and let you know

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

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.