[SOLVED] BIOS only detecting one hard drive

Feb 5, 2020
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Recently built my first computer, but the bios can only detect one of my two drives, hdd and ssd. Both work but only one will show up at a time. I can use them both individually but only one will show up when they are both hooked up.
 
Feb 5, 2020
5
0
10
MSI intel skylake b150 lga 1151
WD Blue 1tb hdd 6gb/s 7200 rpm
WD Blue 250gb internal ssd
Intel core i3-6100 3.7ghz
Crucial 8gb single ddr4 2133mt/s
EVGA 600w bronze psu

I now have both appearing in BIOS settings but only my ssd is shown under my storage settings in the control panel.