I built a new PC some days ago, and everything seems perfect, except that the 1 TB HDD I cloned from my old 500 GB HDD is making a deep weird sound. First of all, every time I access the disk, I hear a deep sound, and when the PC is turning on, I hear some clicking (the rapid clicking is my mouse, I'm opening and closing folders to trigger the vibrating deep weird sound I'm describing). I'm using this 1TB disk for data mainly (I use a SSD as the OS).
As background information, the disk is a seagate barracuda 7200 rpm which was RMAd and replaced with a refurbished one. Maybe the refurbished disks make these noises? should I worry about my data? (although the disk is working normal and passed a seagatetools short generic test? Thanks!
PS: I recorded the sounds, just click on the links. Thanks
UPDATE: I finally reduced the possibilities of this humming noise to vibration. Concluded this by taking the HDD out and placing it in a mat as suggested by @Synetech. The vibration can be also because I changed the surface where the computer is. Back then I had it in a carpet, and know I have it in a wooden-surface (aka computer desk).