I have a Dell X5450 desktop with an AMD quad core processor running Windows 7 professional 64bit. My new HDD unit is a Western Digital WD Blue 1TB Sata drive and all of my cables are in order and appear to be functioning. I'm planning on installing it as a back up drive, transfering my data on to it from my existing drive, then removing the old drive and using the WD Blue as my sole drive. The problem I'm having is that, for the life of me, I cannot get the new HD to show up. Bios shows nothing, Sata ports 0, 1, and 2 are in use with ports 3 and 4 claiming they are empty and the new drive does not appear in Windows either. I read that Dell's make you open the ports manually but they appear empty when enabled. I think the new drive might be installed in port 2, but I can't really tell. I enabled the second port earlier this morning but still can't figure out how to find the drive in Windows. What am I missing?