It was actually weird of me to ask.
The reason why I asked, was because I know that Seagate's "SeaTools for DOS" is a great program for testing and repairing, and I thought it was only for SATA HDD's.
I read abit on the internet, and it seems that it actually is usable for all HDD's, so I highly recommend using this.
It's freeware, so it's just to google it, download it, burn it to a CD and boot your computer using this program.
It repaired my last broken HDD to a state where I could extract the most important stuff from it.