Compaq Presario CQ40-127TU Windows XP Driver

CHIPSET:
INTEL CHIPSET:INF Update Utility - Primarily for Intel® 5, 4, 3, 900 Series Chipsets
Compaq Presario CQ40-127TU Chipset Driver
Download(mediafire)

Intel matrix storage manager:
Download  (mediafire)

GRAPHIC
Compaq Presario CQ40-127TU Graphic Driver
if you have intel graphic:
Mobile Intel 45 Express Chipset Family Graphics Driver
Intel graphic accelerator 4500MHD
Download

If you have Nvidia graphic:
NVIDIA GeForce G 103M/ G 105M Graphics Driver (186.81 WHQL XP 32-bit)
Download

FOR NVDIA: if resulting in error use modded driver below:
Download
3-step process to install:
1. Download driver, double click and select extract,
2. Download modded INF and replace original INF in extracted folder,
3. Install and  reboot.

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AUDIO:
Compaq Presario CQ40-127TU Audio Driver
===============
Install MS-UAA first:
both ms-uaa sp33867 and kb888111 are similar files.
Windows XP SP2: Download   (SP33867.exe)
Download  (KB888111)
Windows XP SP3: Download  (KB835221)

Then restart, and install AUDIO Drivers:

IDT - High Definition Audio Codecs (SP39671)
Download  (ftp)
Download (mediafire)

First install your audio.
Installing the Audio normally resulting in error, ignore it and proceed  by manually install the drivers, read the guide here;
Manually  install Audio Drivers.

High-Definition Audio (HDA) Modem Installer and Driver
Download

WIRELESS:
Compaq Presario CQ40-127TU Wireless Driver
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Choose  one of the wireless driver base on your specs, if you dont know,  just  try each driver (there are no risk and will not harm your system)
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Atheros Wireless:
Download (direct)
Download (mediafire)

Broadcom
Download (direct)
Download (mediafire)

if error try newer version -
Broadcom BCM9431HMG
Broadcom: Download

Intel: Download
(requires  windows installer 3.0 installed first)
=================

BlUETOOTH:
Compaq Presario CQ40-127TU Bluetooth Driver
HP Integrated Module with Bluetooth Wireless Technology
Download


WIRELESS UTILITY:
Compaq Presario CQ40-127TU Wireless Utility
HP Wireless Assitant:
Download

LAN/ETHERNET:
Compaq Presario CQ40-127TU LAN/Ethernet Driver
Realtek RTL8102E Family PCI-E Fast Ethernet NIC
  Download(direct)
 Download(mediafire)
or Download

CARD READER
Compaq Presario CQ40-127TU Card reader Driver
JMB38X Card Reader Host Controller
Download (direct)
Download(mediafire)

TOUCHPAD
Compaq Presario CQ40-127TU Touchpad Driver
ALPS Touchpad
Download
Download (mediafire)

Synaptics Touchpad
Download
Download 

WEBCAM
Compaq Presario CQ40-127TU Webcam Driver
Cyberlink youcam software 2.0
Download

LIGHTSCRIBE:
Lightscribe system software
Download

If you have 7 unknown device:
Unknown devices:
Download

Install Netframework before Quicklauch:
Net framework 2.0
Download

HP Quick Launch Buttons
Download
Unzip files, open folder and right click at machine.inf, select install.