Compaq Presario CQ40-336TU Drivers For Windows XP

Please read the installation instruction carefully, install according to order, installing MS-UAA is the important part. If you have any problem report back by leaving your comments.
(First install this and reboot)
Intel matrix storage manager:
Download (intel site)
Download (mediafire)

CHIPSET:
filename: infinst_autol.exe
INF Update Utility - Primarily for Intel® 5, 4, 3, 900 Series Chipsets
Download (direct link)
Download (intel website)
Download(mediafire)

restart after chipset installation

AUDIO

MS UAA (required with a reboot before Audio an video (HDMI) drivers)
here:
SP33867
Download

High-Definition Audio (HDA) Modem Installer and Driver (confirm MS-UAA before installing)
here:
Download
IDT High-Definition Audio CODEC Driver
SP39671
Download (ftp)
Download (hp)
Download (mediafire)
Download (ziddu)

After Download Install the IDT drivers, if it failed to install follow this guide:
Manually install audio driver

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

.Net Framework(required before Q.L.)
here

HP Quick Launch Buttons
here

WIRELESS:
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
or
Intel: Download
(requires windows installer 3.0 installed first)
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ETHERNET:
Realtek RTL8102E Family PCI-E Fast Ethernet NIC
Download

HP Wireless Assitant:
Download

Cyberlink youcam software 2.0
Download

Lightscribe system software
Download

If youhave 7 unknown device:
here

Do manual installation Go to device manager, right click unknown device,Choose to update driver, No to connect,Choose install from a list or specific location, Don't search, Have disk,Browse to the location of machine.inf.Do it for the rest of unknown devices