Agreed that visual inspection is preferred, however, google for VIA VT6420 and you will find that VIA has this to say about it...<br><br>Supporting Serial ATA and Parallel ATA interface, the
VIA VT6420 is compatible with all kinds of ATA and ATAPI
devices and provides up to four Serial ATA channels
for extended connectivity, offering systems builders
complete flexibility to incorporate HDD, CD-ROM, DVD
and other types of ATA and ATAPI devices into PC systems.<br><br>So I would guess that the system you have supports BOTH old style IDE/PATA drives and the new SATA drives as well. Just because his old drive might be PATA does not mean you have to replace it with PATA... you should be able to use a SATA drive and see a performance increase... just be aware that he might have to buy a SATA cable for the drive if he doesn't already have one.<br>
<br>Andy<br>