harddrive probs

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

i recently installed an old hard drive in my brothers pc,
it has been formatted and partitioned but now the pc
locks up when loading windows. if i remove the hard drive
and just use the single drive he has there now, it works
fine, but when i add the second drive, on the secondary
ide cable, the pc freezes. why is this?