I have a 1TB WD Green HDD and it doesn't even detect in Drive Management. I've tried it in a few different PCs. I know that HDD issues can be figured out by the sound, so here is a clip: https://soundcloud.com/user-629682595/hdd-noise/s-WUcYd
Completely? There is no way to get it to work? (I don't have any data on it so formatting etc. isn't a problem)
Not entirely sure, but I think HDD are much repair-able. The sounds it make is surely not normal, and if you say no PC recognizes it, it's probably something inside that went RIP.
Is it possible it's the SATA cable, since it's quite an old one? I don't have any new ones, but tomorrow or so I will take one out of my main PC and check.
Me neither, but I don't want to open up a HDD and then it turns out to be something as simple as a cable!
Don't open the hard drive. A speck of dust could ruin the drive, plus it would instantly void any warranties.
Opening HDD may make things worse. Those things are very delicate. http://www.drive-recovery-hints.com/Never_open_cover_of_hard_drive.html