Hi I have a compac nc 6400 notebook... recently its cpu usage has been 100% and has been very slow.. then i discovered the problem was only once it was plugged in to ac adapter..
as soon as i remove the adapter cpu usage goes down and laptop speeds up.. i have tested the charger which is ok gone thrugh all the spy catching and virus killing. but the problem is still there. and that is ac in= 100% cpu usage+ slow laptop, ac out = fast laptop + low cpu usage (though no new processes show up when either plugeg to mains or not in processes)
can any body please help,, i m really confused