I recently replaced my 80G primary IDE hard disk (unit failed) with a 320G hard disk. There is also an installed secondary hard disk.
Immediately after the new HD was installed I noticed a sort of intermittent humming noise (really more of a NNNNNN NNNNNN tone which may or may not increase/decrease in pitch). The noise can start when the computer stats up, or after some period of operation. The noise can continue, or stop after some period of time, then spontaneously restart.
I have ruled out the hard disks, the CD/DVD writers by unplugging them and powering up (I can still hear the noise). I am not sure if the sound It is coming from the power supply or not, though there is no change to the pitch when I touch the power supply casing.
Is it possible that the new hard disk pulls more power than the old and the noise is from the PS?
Any other thoughts?
Immediately after the new HD was installed I noticed a sort of intermittent humming noise (really more of a NNNNNN NNNNNN tone which may or may not increase/decrease in pitch). The noise can start when the computer stats up, or after some period of operation. The noise can continue, or stop after some period of time, then spontaneously restart.
I have ruled out the hard disks, the CD/DVD writers by unplugging them and powering up (I can still hear the noise). I am not sure if the sound It is coming from the power supply or not, though there is no change to the pitch when I touch the power supply casing.
Is it possible that the new hard disk pulls more power than the old and the noise is from the PS?
Any other thoughts?