Dont forget to check automatic updates, and i recommend dont install updates for conextant audio driver before before installing the driver i give below.
CHIPSET:
Compaq Presario V2602XT Chipset Driver
Intel Chipset INF update Utilities
Download
GRAPHIC:
Compaq Presario V2602XT Graphic Driver
Mobile Intel 915GM/GMS, 910GML Express Chipset Family Driver
Download
AUDIO;
Compaq Presario V2602XT Audio Driver
This also some problems, because some model work and some didn't, follow tutorial here:
Conexant CX20468-31 AC97 Audio driver
Download
If installing resulting in error follow this guide:
Download and installation Guide
HP Quicklaunch Button
Compaq Presario V2602XT Button Driver
Download (direct)
Download (HP)
Download (mediafire)
CARD READER
Compaq Presario V2602XT Card Reader driver
texas instrument card reader
download
If you have webcam:
Compaq Presario V2602XT Webcam driver
Cyberlink YouCam Software
Download
Download (mediafire)
Lightscribe System Software
Download
Download (mediafire)
WIRELESS:
Compaq Presario V2602XT Wireless Driver
==================
If you have Intel Wireless:
Intel Wireless PRo 2200BG Driver for Microsoft Windows 7
for this driver read here
If you have Broadcom Wireless:
Broadcom Wireless LAN Driver for Microsoft Windows 7
Download
If you have Atheros Wireless
Atheros Wireless LAN Driver for Microsoft Windows 7
Download
==================
BLUETOOTH:
Compaq Presario V2602XT Bluetooth Driver
Software Support for HP Integrated Module with Bluetooth Wireless Technology
Download
ETHERNET
Compaq Presario V2602XT LAN/Ethernet Driver
Realtek RTL8139/810x Family Fast Ethernet NIC Driver
Download
or you may download from realtek site:
Download link