Drivers for Compaq Presario CQ40-305LA Laptop for Windows XP

Microsoft UAA driver:
ftp://ftp.hp.com/pub/softpaq/sp33501-34000/sp33867.exe
After installing the UAA driver reboot the notebook nad install the audio driver from the following link:

Audio driver:
ADI SoundMAX AD1984A Audio Driver:
ftp://ftp.hp.com/pub/softpaq/sp39501-40000/sp39695.exe
Installing this driver may result in an error. But continue with the following steps to get the audio driver installed correctly.
Chipset drivers for XP:
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=N&ProductID=816&DwnldID=16023&strOSs=44&OSFullName=Windows*%20XP%20Professional&lang=eng
NOTE: However, this will take you to a third party site. HP does not control  the content published on this site.
Video driver for XP:
http://downloadcenter.intel.com/NotFound.aspx?NotAvail=Y&lang=eng
NOTE: However, this will take you to a third party site. HP does not control  the content published on this site.

High-Definition Audio (HDA) Modem Installer and Driver:
ftp://ftp.hp.com/pub/softpaq/sp39501-40000/sp39545.exe

Intel PRO/Wireless Drivers :
ftp://ftp.hp.com/pub/softpaq/sp38501-39000/sp38890.exe
Synaptics Touchpad Driver:
ftp://ftp.hp.com/pub/softpaq/sp39001-39500/sp39032.exe
Marvell Yukon Gigabit Ethernet Controller Driver:
ftp://ftp.hp.com/pub/softpaq/sp39501-40000/sp39955.exe
HP WWAN Connection Manager:
ftp://ftp.hp.com/pub/softpaq/sp37501-38000/sp37761.exe
Chicony Camera Driver:
ftp://ftp.hp.com/pub/softpaq/sp39001-39500/sp39323.exe
If the issue persists, please contact us by visiting the following Web site. We will be glad to assist you further.
http://forums12.itrc.hp.com/service/forums/bizsupport/questionanswer.do?admit=109447627+1221738235132+28353475&threadId=1264202

Video driver :
http://www.findmysoft.com/drivers/ATI-Catalyst-8-4-Display-xp32-video-card-driver.html
Audio driver :
http://www.versiontracker.com/dyn/moreinfo/win/151979

Ethernet(LAN) driver :
http://www.downloadpipe.com/drivers-network/review-Realtek-RTL8102E-Family-PCI-E-Fast-Ethernet-NIC-1195806.html
OR
http://www.radarsync.com/driver/d275927-realtek_rtl8102e_family_pci_e_fast_ethernet_nic

http://welcome.hp.com/country/us/en/contact/chat_1.html
Or
http://h20180.www2.hp.com/apps/Nav?h_pagetype=s-006&h_lang=en&h_cc=us&h_product=18703&h_client=S-A-R163-2&h_page=hpcom&lang=en&cc=us
Installation Instructions:
1. Download the Softpaq .EXE file to a directory on your hard drive.
2. Execute the downloaded file and follow the on-screen instructions.
3. Restart the notebook when the installation is complete.
Download these files and save them for back up for future use. Incase you have any queries, feel free to contact us with your queries and suggestions.