RIch, The good news is that many 2002 Quicksilvers support internal HD sizes above 128GB. 2001 models require a PCI controller card with 48- bit addressing to do the same. <http://www.xlr8yourmac.com/IDE/big_ide_drive_support.html> Rick On Jul 15, 2006, at 12:34 AM, Richard Klein wrote: > Thanks A J! It looks like I have a QS2002, built in April '02. > > -- Rich > > A2L1 wrote: >> Hi, >> This is where to go to breakdown the serial number as to date built >> and what originally came with that particular unit. Hope it helps. >> http://www.chipmunk.nl/klantenservice/applemodel.html >> A J