linderman

disconenct the cd-rom drive as suggested

add the old drive on that cable


you mayyyyyyy end up with the bios changing the boot order when it detects the IDE drive; computers bios love IDE >>>>> its momma

you mayyyyy have to reset the boot order so the machine doesnt try to boot from it ??????

give it a whirl

if you want easier and more fool proof then use a USB external enclosure for hard drives if you are fearful of waltzing with the bios; we dont know your balking point, I personally would try the drive on the cd-rom port as suggested by my collegues and because I hate spending when not required! and be prepared to do alittle sword fighting with the bios boot order>>>> but thats easy too