The specification you mentioned is for AMD model, while your model is v3420TU, TU here refer to INTEL model which use INTEL processor and Intel chipset while AMD model use Nvidia chipset.
The graphic also use Nvidia 7 series for TU model and 8 series for AMD model.
So here is my suggestion, install the driver here
:http://laptop-driver.blogspot.com/2010/02/compaq-presario-v3000-amd-windows-7.html
this is the driver for AMD model.
by the way for the V3420TU user, this is the driver for TU model V34XXTU.
CHIPSET:
Compaq Presario V3420TU Chipset Diver
Intel Chipset Installation Utility for ICH9m for Microsoft Windows 7
Download
AUDIO
Compaq Presario V3420TU Audio Driver
Conexant High-Definition SmartAudio 221 Driver
Download
GRAPHIC:
Compaq Presario V3420TU Graphic Driver
If you have Intel Graphic:
Mobile Intel 965 Express Chipset Family Video Driver For Windows 7
Download
If you have Nvidia Graphic:
NVIDIA GeForce 8M Series GS Graphics/Video Driver (195.62 WHQL)
Download (32-bit)
Download (64-bit)
MODEM:
Compaq Presario V3420TU Modem Driver
HDAUDIO Soft Data Fax Modem with SmartCP
Download
WIRELESS:
Compaq Presario V3420TU Wireless Driver
==================
If you have Intel Wireless:
Intel Wireless LAN Driver for Microsoft Windows 7
Download
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 V3420TU Bluetooth Driver.
Software Support for HP Integrated Module with Bluetooth Wireless Technology
Download
WIRELESS UTILITIES:
HP Wireless Assistant
Download
WEBCAM;
Compaq Presario V3420TU Webcam software and Driver
Cyberlink Youcam Software
Download
ETHERNET
Compaq Presario V3420TU LAN/Ethernet Driver
Marvell Yukon 88E8039 PCI-E Fast Ethernet Controller Driver
Download
LIGHTSCRIBE:
Compaq Presario V3420TU Lightscribe software.
Lightscribe System Software
Download
TOUCHPAD:
Compaq Presario V3420TU Touchpad Driver.
ALPS Touchpad Pointing Device Driver
Download
HP DVB-T TV Tuner External Expresscard Driver
(originally vista drivers)
Download
HP Digital/Analog TV Tuner Driver Software
(originally vista drivers)
Download
BUTTON:
Compaq Presario V3420TU Button Driver.
HP Quicklaunch Button
Download (direct)
Download (HP)
CARD READER:
Ricoh 5-in-1 Card Reader Host Controller and Driver for Microsoft Windows 7 (32-bit and 64-bit)
Download
or
Download
