Wasn’t able to get the 3rd HDD to be recognized.
Not sure if that’s a problem with the third SATA port on my mother board or the drive not getting enough power…
Removed the 500GB drive and replaced it with the 2TB drive.
At least I have a lot of space for photos now!
Next, I think I’ll buy a large external drive to back stuff up with.
I’m sure one day I’m going to be needing a 10TB NAS all to myself for photos…
Let’s hope it’s not soon.