Kindly check the link to know more about Issues regarding downgrading to or installing Windows XP in HP-Compaq systems

Neither Zyxware Technologies, nor HP-Compaq can give you a guarantee that these drivers will work perfectly in your system. How ever, you may try installing these.

You can either click or copy the given link and paste them onto a new driver to download them.

ICH9 chipset drivers for windows xp.

http://downloadmirror.intel.com/16026/a08/infinst_autol.zip
http://downloadmirror.intel.com/16026/a08/infinst_autol.zip

Here is the link for the Microsoft Universal Audio Architecture driver that need to be
installed before installing the audio driver:

ftp://ftp.hp.com/pub/softpaq/sp33501-34000/sp33867.exe

Conexant High Definition SmartAudio 221

http://tc.versiontracker.com/product/redir/lid/1455592/sp37816.exeConexant%20High%20Definition%20SmartAudio%20221

or

ftp://ftp.hp.com/pub/softpaq/sp35501-36000/sp35683.exe

Synaptics Touchpad Driver

ftp://ftp.hp.com/pub/softpaq/sp33501-34000/sp33751.exe

Quick launch:

ftp://ftp.hp.com/pub/softlib/software8/COL18360/ch-47422-1/sp33258.exe

Intel PRO/Wireless Drivers:

ftp://ftp.hp.com/pub/softpaq/sp35001-35500/sp35426.exe

UAA DRIVERS:

ftp://ftp.compaq.com/pub/softpaq/sp32501-33000/sp32646.exe

Conexant HDAUDIO Soft Data Fax Modem with SmartCP:

ftp://ftp.hp.com/pub/softpaq/sp35001-35500/sp35335.exe