I had the same problem with my second hard drive. I'm guessing that the storage isn't properly allocated or something along those lines.
https://windowsreport.com/second-hard-drive-not-detected-windows-10/
This guide helped me solve my problem, and in your case, instead of the second hard drive do it with your SSD.
The issue was solved. I needed to initialize then format the drive. I did not know this.
This is done by going to Disk Management then going to the bottom section, scroll down to the new drive, right click on the partition, then initialize, then format.
Confused, as I am having this same issue, but like me, you said that the drive showed in BIOS but not Disk Management. Then in your "Fixed" reply, you said all you had to do was scroll down in Disk Management and initalize and format. How did you finally get the drive to shoe in Disk Management? As that is the problem I am having. I can't initalize and format if not in Disk Management (but is in BIOS).
Thanks