Hi, I am not sure if it is the hard drive or not making this noise when I turn the computer on. I replaced the original hard drive for this computer about 3 years ago or so. The original hard drive made clicking noises when it was on its way out. This one makes a sound I haven't heard. It does it 5 or 6 times before stopping. The computer loads with no problems. I recorded the sound. If it is the hard drive what should I do? Thanks. I uploaded the video I made of the noise on youtube. Here it is: