i have a seagate baracuda 4 and it has been in use for three years.. i have been using a seagate 7200 for a while lately and i just noticed how noisey my old hard drive is. i couldve sworn it was quieter before but now i can hear it whenever it is on. so my question is: do hard drives get louder with age? something to do with oil or lube? or am i just realizing this because i am comparing it to my newer hard drive?