Pay attention to what he asked. Did you put a DVD in a CDdrive? I'll let you guess how well that will work. Pay attention to the boot as well, sometimes you'll need to press a key to boot from the drive.
I'd be surprised if a system sporting an i7 processor has a CD drive and not a DVD drive (can you even buy plain old CD drives nowadays?). I suspect that your second point is the relevant one. Or possibly, as Herr_Koos suggests, it's not a genuine, bootable Microsoft DVD.
Make sure that the SATA cable to the drive is connected at both ends. I assume the power cable is connected, since you were able to insert a DVD in it (eject). May want to try replacing the SATA cable or try a different SATA port on the mobo.