I built my new computer for the first time. It works, but my motherboard only came with two 6 GB SATA cords, and no 3 GB one(even though it said it would come with 3). I have a optical drive, a ssd, and a 1 terabit hard drive. I plugged in the optical and solid state drive, so I was not able to have the hard drive in. It works find, but after I booted up everything, I tried to switch the one in the optical drive to my hard drive. It did not work. The SSD one looks different than the one in the optical drive, does that mean that they are not interchangeable?