I *assume* you have a Seagate HD that's SATA type. Then that's the reason for 3.0 and 6.0Gb which is the xfer speed of the i/o. You have to be sure that the HD supports at least 3.0gb, there should be a jumper for that or follow whatever the Seagate offers. Then make darn sure you're on SATA port 1 or 0, whichever the numbering starts as. Guessing again, because your DVD drive is F, it should be D under typical situations. That's makes me ask, is your 1Tb HD "partitioned"? Partitioning makes logical HDs out of physical HD, so I need to know what the status of use for the HD is. Also, under the bios they may offer you a selection of boot device and you can force it to boot from SATA port #(whatever you make it). Since, I didn't research the specs of the mtrbd., I suggest you do it. Because, somewhere you got off on the wrong foot. This is why, I ask for details. That means the actual model# or HD, type, mtrbd., what cpu, etc., and not just same its a 1Tb HD by Seagate. I gather clues as what to pass on when you provide such and get back on track. Otherwise, I'm 2nd guessing here.