Hey guys! I have a couple of old hdds that I just managed to take out of my old rig, and now I wanna get rid of them, but I'd like to format them first. I was wondering how I should go about it, and if I could just maybe plug them into the motherboard like I would an external HDD? One hdd has an OS in it, while the other has nothing but files. I'm not sure if that makes a difference. Thanks for the help!