1TB drive plugged into SATA2)* Reordered cables both on the motherboard and back of the hard drive (after removing the TB drive to make things easier).
When none of these remedied the problem I figured I had cooked the drive, and hooked it up to another computer to confirm.
If you've tried the above recommendations and your computer continues to freeze at the DMI message, it may be a sign that one of your hardware components is malfunctioning.
The gent at the desk successfully mounted the drive, and verified that all the information was still present on it.
He recommended I buy an enclosure for it to at least use it as an external drive, which works great. This would be all well and good if I didn't have a ton of data on the TB drive I'd rather not wipe by converting it to a boot drive and reinstalling Win7 over the top of it, so I'd really like to get the 250GB drive working again if possible.
Before replacing any hardware, we first recommend you erase everything on the hard drive and start over.
If you're unable to reinstall the operating system your computer may have a hardware issue and it's suggested that the hard drive be replaced.