Installing XP on HP Pavilion dv2630ea

First you need to Slipstream the SATA driver.This is the sata driver for your machine and others that have latest Intel Chipset.

Download sata driver

and then:

Download and run it,make a floppy OR cancel floppy creation.The files will be extracted to C:\Swsetup\sp37005 to use with Nlite.

You can use Nlite to integrate the drivers into a new XP install cd.Nlite will even burn the new XP cd.
Very easy really,just follow the guide below closely.
http://getlaptopdriver.blogspot.com/2009/10/slipstreaming-guide-to-install-windows.html
or
http://www.howtogeek.com/howto/windows/resolving-setup-did-not-find-any-hard-disk-drives-during-windows-xp-installation/


Nlite download:
http://www.nliteos.com