it depends on whether the hdd's are parallel PATA or a modern serial SATA type.
since they are from a XP system, then they would likely be PATA.
if also, you just want to use as a data drive, ie: have little or no system files,
there may be available cable(s) from the power supply box & from the main board.
- compare how the existing hdd is connected, as it will be the same electrical connections, as that is.
& mechanically, use extra screws & place very near to the existing hdd.
you can format the 2nd drive, with Gparted, which may in the menu list, or if not, will need to be installed.
Last edited by pierre2; 04-30-2014 at 08:30 AM.