eSata!

I am trying to connect an external Sata drive using an eSata cable plugged into the rear of the board but I'm not having any joy?

I'm not overclocked anymore and I can't see any options in the BIOS regarding eSata and the machine has been powered off & restarted a few times. I've also looked in the Windows management for disks and there is nothing there? . . . Hmmm

Am I missing something?

Anyone else using an eSata device?