I have a HP desktop with 300GB hard drive.... I also have a 80 WD800 (80GB) hard drive that bought for my old PC about 1 1.5 years ago. So I just pulled the cd roms and both hard drives out of it so i can junk the case. My question is do i need to set this 2nd hard drive to slave? B/C I also added it to my old PC and it was the 2nd hard drive on that system also and it's not on slave!!!