Ok please find other link or re-describe your problem from the start im having difficulty in understanding your issue 20 pin LED? Also talking about lights when you need your computer to boot? Please re-phrase.
Kindest Regards Rob."
i seem to of opened to many threads iam new to this so apologies here are the facts
when you switch on the computor a red light comes on the power switch it should be blue
i have tried a new power lead
i have replaced battery on mother board
i have taken a big ball of fluff out
i have disconected all leads to mother board and cleaned
both fans run for about 2 seconds
many thanks for your time