Non-SSD Drive intermittent functionality

Hello. I received my Alienware 17 R4 back in August.  Everything seemed fine except the second standard hard drive was not initialized.  Disk manager-->format g2g.  Few days later this new D drive stopped showing up at all.  Opened the case and found the sata cable had a poor connection into the motherboard.  Reseated and problem went away for a bit.  The drive still fails to be recognized a rather high percentage of boots. ~10%  Everytime I have to go back in and wiggle that cable.  Has anyone else seen this?