09-09-2011 09:06 AM
I have some problem with my T400.
It will not boot at all. When I plug in AC adaptor, there is no light at all. presing the start button does not have any affect. I have removed the battery and connected only on AC Adaptor, it shows no light.
I have tried, pressing start button 10 mins, then holding start button for 30 secs, then connect to AC adaptor (Battery removed) and press Start. It has shown the AC power light but it did not boot.
I attached the battery and after that no light at all and even if I take the battery off, it still does not show any light at all while connected to AC adaptor.
AC adaptor is absolutely fine as it works on another Lemovo machine.
I have also tried pulling CMOS out and leaving it disconnected overnight but still no light come up when I replug AC adaptor.
What could be the problem and how can I resolve this.
Thanks in advance.