HDD shows up on windows and bios overview but not boot management

[Avac]

I have a msi gaming 5 motherboard and a WD Blue HDD. The HDD shows up on windows and I was able to partition it (I think this shows that it works). It also shows up on the bios overview but when I go to boot management it doesn't show up. I have my SATA set to AHCI. Help?

 

[Avac]

If I set SATA to IDE, the WD Blue HDD comes up but not the Samsung 850 ev0, if I set SATA to AHCI, then Samsung 850 evo comes up...

 

[Avac]

Nevermind, I was just confused about bios, turned out there was separate thing for hard drives under boot.