Thanks. Yea I read on that. Maximum harddrive is 120 gig. I know its old the laptop but i already over the years updated cpu to penium 4 3.06. Ram to 2gig. wlan g card to wlan n card. I thouht it would roll backto ata 100 if I put in a ata 133 harddrive. Thanks. Last updated for this old laptop. lol.