This is my first time trying to upgrade my computer. I attempted to take a 15 gb hard drive out of my old computer and put it in my new computer for extra space. I don't know the brand or anything other than on the sticker on the front of the old computer it says: 15 GB Hard Drive Ultra DMA/66 I took it out of the old computer, opened up my new one. Placed it in one of the bays. There are only 3 connector things. One to the dvd burner, one to the floppy, and one to my 80 gb hdd. So I took the ribbon cable out of the floppy and put it on my 15 gb hdd. Then I found one of the power cords that didn't seem to be connected to anything and placed in on the hdd. But the computer doesn't seem to recognize that there's a hdd there. Just to test it out I tried accessing the floppy drive and it made explorer freeze. But anyways I know I was supposed to switch the hdd to slave or something like that but the hdd doesn't have any switches on it at all. What do I do?