Ok so I just built my new rig m5a99fx pro 2.0 and everything else and ram adata 2rx8 ddr3 but I use to have another pc and it was a windows 8 and it had my WD tb hard drive can I still use this it's a hdd I never deleted the files in it but can I still use this for my new rig well it still boot up and all? Is it okay and my gpu I'm using my old one and 7970 oc edition can that work too?