This model is still fairly new. The website shows it having a 3 year warranty.
http://h10010.www1.hp.com/wwpc/us/en/sm/WF06a/321957-64295-89315-321838-f33-447349.html

 

If you have a SATA hard disk now, it will support SATA, but if it has an IDE hard disk now, it will only support IDE.

 

my original one is ata-6....maybe it doesn't support~
crazijoe, thanks, as I'm doing my dissertation, buy a new one will be much quicker..

 

Then you can only get an ATA-6 hard disk. You will still notice a significant improvement if you upgrade to a 7200 RPM ATA-6 hard disk from a 4200 RPM or 5400 RPM.