Compaq Presario CQ40-502AU Windows XP Driver

please Download .Netframework before others:
Net framework 2.0
Download

AUDIO:
MS-UAA: Download(sp33867)

for windows XP SP3:
If ms-uaa above failed, use this patch: KB835221.exe

restart after install MS-UAA and install

Conexant High Definition Audio
Download (sp39671)
0r
Download (SP41500)

Download and install the driver, you will get the error while installing.
Perform the below steps to fix the issue.

1. Click on Start and select Run. Now type devmgmt.msc and press enter.
2. Right click on "Audio device on High Definition Audio Bus" and click Update driver.
3. Select "Install from a list or specific location".
4. Click Next. Then select "Don't search, I will choose the driver to install".
5. Click Next and then select "Sound, video and game controller" from the list.
6. Click Next and then click Have Disk.
7. Click Browse C:\swsetup\sp39671 0r C:\swsetup\sp41500 (test which work) folder and select the .inf file and click open and Continue with the onscreen instructions.

GRAPHIC:
ATI Mobility Radeon HD 3200/3450/4200/4330 Graphics
(netframework installed first)
Download

ETHERNET:
Realtek RTL8102E/8111C Family PCI-E Gigabit Ethernet NIC Driver
Download
or
Realtek RTL8168C(P)/8111C(P) PCI-E Gigabit Ethernet NIC
Download

WIRELESS DRIVER:
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)
=============
Broadcom: Download

Intel(R) PRO/Wireless 3945ABG Network Connection
Download
(requires windows installer 3.0 installed first)
================================

MODEM:
High Definition Audio Modem
Download

CARD READER
JMB38X Card Reader Host Controller
Download

TOUCHPAD
Download

Cyberlink youcam software 2.0
Download

ENE-CIR Reciever:
Download

If you need the chipset Driver:
AMD CHipset DRIVER.
Download

SPECIFICATIONS
AMD Athlon X2 Dual-Core 2.1GHz QL-65 Processor
ATI Radeon HD 3200 Graphic
250GB HDD,
2GBDDR2 RAM 14.1" TFT WXGA High Definition display LightScribe
Super Multi 8X DVD+/RW
5 in 1 card reader,
Webcam,
Bluetooth 802.11b/g WLAN
6 Cell Lithium Ion Battery 1