i bought a new laptop, HP V3000 series. it has windows vista preinstalled. not driver CD attached. but still i need windows XP.

it is not easy to install windows XP on 965 chipset.
first it has sata drive, which windows xp don't have driver included. it can be downloaded from intel by search for GM965 express chipset driver or download from HP:

SATA drvier for HP V3643TU: (without this driver the hard disk can not be found)
ftp://ftp.hp.com/pub/softpaq/sp36001-36500/sp36131.exe

inf update driver for HP V3643TU:
http://downloadmirror.intel.com/13499/a08/infinst_autol.exe

UAA for HP V3643TU: (Must installed before audio and modem driver)
description: Microsoft UAA Bus Driver for High Definition Audio
ftp://ftp.hp.com/pub/softpaq/sp33501-34000/sp33867.exe

audio driver:
description: Conexant High Definition Audio
ftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34386.exe

video driver( Intel X3100)
http://downloadmirror.intel.com/13301/a08/win2k_xp1429.zip

ethernet driver
description: Marvell Yukon 88E8039 PCI-E Fast Ethernet Controller
http://www.marvell.com/drivers/upload/yk51x86.zip

Wireless driver
description: Intel(R) PRO/Wireless 3945ABG Network Connection
ftp://ftp.hp.com/pub/softpaq/sp35001-35500/sp35426.exe

Wireless driver for broadcom
ftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34152.exe

modem driver for HP V3643TU
description: Modem Device on High Definition Audio Bus
ftp://ftp.hp.com/pub/softpaq/sp34501-35000/sp34777.exe

SD/MMC/xD Card Reader driver for HP V3643TU:
ftp://ftp.hp.com/pub/softpaq/sp32501-33000/sp32825.exe

the following driver may not necessary:

touch pad:
ftp://ftp.compaq.com/pub/softpaq/sp25501-26000/SP25796.exe
hp quick key:
ftp://ftp.hp.com/pub/softpaq/sp34501-35000/sp34796.exe