So, I have this Alienware m15 which has a Seagate Firecuda SSHD ST1000LX015-1U7172. I added another Samsung EVO 970 m2 SSD for OS and when I tried to enable the encryption on this SSD, I accidentally found that maybe the SSHD can be encrypted by BIOS password.
Here is what I have done: I enabled "HDD Password" in BIOS, then it begins to ask the password at each bootup. If I refuse to give the password, the SSD(where the OS is) loads but I won't be able to see the SSHD, and Windows prompt me to initialize/format that SSHD. Then I tried to search google or Seagate website, it does not mention anything about encryption. However, the behavior I observe(without input the password at bootup, OS cannot read the disk) is very alike it is supporting class0 encryption.
I would like to know if there is anyone have experience checking such issue? How could I know if this SSHD supports class0 and if it's encrypted?