Upgrade your chipset and storage drivers from Gigabyte's web site and try again with Data Lifeguard. That looks a lot more like driver issues than disk issues. If it was really that bad the short test would fail immediately. You can also try Intel Desktop Utilities if your motherboard is supported.
If you're comfortable with Linux you could use smartmontools with the following line:
smartctl --all /dev/sdX
Where X is a letter of the alphabet corresponding to your drive (e.g. sda for the first drive, sdb for the second...)
"The computer programmer says they should drive the car around the block and see if the tire fixes itself." [src]