It really should have showed up if you formatted it already.
Hopefully the Disk Management method works, if NOT then we'll troubleshoot further. For example, perhaps you need to install some drivers.
Whenever you install Windows you need to install these drivers from the MOTHERBOARD's support site:
a) main Chipset drive (sometimes called "INF")
b) other relevent drivers (read the descriptions)
c) Video drivers (in your case from www.amd.com as you likely know)
a) Go into "Device Manager" and make sure there aren't any issues (exclamation marks) that may mean missing drivers
b) run MEMTEST if you haven't done so
c) possibly update the motherboard BIOS
d) make a periodic IMAGE BACKUP of Windows to your hard drive (WD's Acronis True Image Free software)
e) *Update the SSD firmware (make a backup IMAGE before doing so)