Data Drive Showing as a Boot Drive?

My computer just a few minutes ago froze up and I couldn't do anything. After looking on the motherboard LEDs I found out the BIOS was not posting thru the boot devices properly.

After fixing that, I was able to jump into the BIOS to find something odd, my OS drive AND MY Data SSD (no OS on it currently) has shows as bootable in the BIOS.

Why is this? I formatted the drive which originally had windows 7 on it. I'm not storing any Operating system on it right now. Is the boot sector cached in the BIOS for some reason?

Thanks in advance.
 
Solution
"Is the boot sector cached in the BIOS for some reason?"...
reset the cmos and motherboard jumper settings...
also check the disk in another pc, whether it gives the same issue...


I haven't tried booting from the OS drive without the ssd attached yet. HOWEVER, the data drive is very new. My computer already had windows installed when I put in the new drive (which used to have windows 7 on it then I formatted it to use it for storage).

Do you want me to try running my PC with the data drive unplugged?