First of all let me tell you that my Acer Aspire 3690 is a two years old laptop and therefore now the case is that I cannot expect the same performance from it that I use to get previously with this same laptop. However the reason is quite simple, the processor has become too old which is not allowing me to get the desired performance. When visited some of the repairing centers I found a common solution that was suggested to me by almost all of them. Anyways now I with following the suggestion and guess what? Already failed once. Before explaining my problem better you know my Aspire 3690 processorís introduction. My laptop has a Intel Celeron M 420 1.6GHz and now I am trying to upgrade the processor with an another Intel model i.e. Intel Core Duo T2050. Before installing this new upgraded CPU I consulted almost 3 to 4 technical expert people and all of them gave me a green signal and told me to carry on with the process. But however after my first trial donít know for what reason I failed. When searched on internet I found that both my older processor and this new Intel processor shares the same FSB speed, both of them were having 533 MHz of FSB speed. Did other researches but didnít get anything more interesting so thought to post my issue on web, and I found this one as the best place. So I am here! Expecting a lot from you all please help me out and let me know what I should do.