Compaq Presario CQ40-121TU Windows XP Drivers

CHIPSET:
Intel GL40 Express Chipset
INF Update Utility - Primarily for Intel® 5, 4, 3, 900 Series Chipsets
Download (direct link)
Download (intel website)
Download(mediafire)

AUDIO:
Download and istall MS_UAA:
Download

GRAPHIC:
INTEL:
VGA/GRAPHIC
Mobile Intel 45 Express Chipset Family Graphics Driver
Intel graphic accelerator 4500MHD
Download

-restart and then install Audio:
Download

High definition Audi HDA Modem
Download

CARD READER
JMB38X Card Reader Host Controller
Download

ETHERNET:
Realtek RTL8102E Family PCI-E Fast Ethernet NIC
Download

WIRELESS:

Broadcom: Download

Intel: Download
(requires windows installer 3.0 installed first)

HP Integrated Module with Bluetooth Wireless Technology
Download

Hp Wireless Assistant
Download

Lightscribe system software
Download

If the sound disappear after restart follow the guide at the end of the post

HP Quiclaunch (require .Netframework 2.0 installed first)
Download

Audio Driver
first download ll the drivers below:

MS-UAA Bus Driver for HD Audio
SP33867
Download

IDT High Definition Audio CODEC (18.82MB)
SP39671
Download

Hotfix kb888111.exe
Download

HDMI Driver
Download