New power supply and now hard drives aren't being detected.

I got back after a week vacation and my computer wouldn't turn on. I switched my power supply with my wife's and it worked fine, so I knew it was the power supply. I went out and bought a new one (corsair rm 850x) and installed it and the computer turned on fine, but not neither of my two hard drives are reading. I made sure the sata cables were fully connected, but it won't start and when I go to the bios it shows neither of the hard drives on the boot priority. Been messing around with it the last hour and no luck, figured I would see if anyone had any ideas. I have a Sabertooth P67 with a Intel I5-2500k. The boot device led is a solid red as well.