Recently one of our older computers was running out of hard drive space. To add more hard drive space i took another hard drive to use as a secondary drive. i connected the secondary drive and tried to rebood. I was not happy to see that the computer was not recognizing either hard drives. I tried changing the jumper around or whatever and it still wasn't working properly. I decided to abort and remove the secondary hard drive. It didn't recognized that hard drive either. I had no idea what to do. I took a hard drive out of my pesonal computer and put it in. It didn't recognize it either. I put the hard drive back into my personal computer and it did the same thing!! PLEASE HELP!!!!!!!!!