This may sound stupid, but there are 2 sata ports stacked on top of eachother on my motherboard and labeled "Sata3_4". I've been trying to figure out if Sata port 3 is on top or on bottom to no avail. The configuration looks as such below:
Please help! Thank you!
More aboutsata3_4 motherboard
You could always attach a HDD to one of the ports and see what your BIOS calls it.