Fan Noise and/or Hard Drive Spinning
The noise falls into two categories:
1) Working noise - When the computer is doing something like downloading music from the iTunes store or transfering files to my external HD (or when I have a lot of apps open) it really ramps up and sounds like a plane taking off.
2) Noise at the end of a long day of use - After prolonged periods of normal use (internet surfing, listening to music, ichatting) I hear quieter yet audible noise, like the machine is under strain.
Is this normal? Any thoughts as to whether it is the HD or the fan? Thanks.
MacBook (Black), Mac OS X (10.4.6)