ChipsetIntel Chipset Installation Utility for ICH8 for Microsoft Windows 2000 and XP:
Download GraphicMobile Intel 965 Express Chipset Family Video/Graphics Driver
Download
AudioUAA drivers (Must be installed before installing the audio driver):
DownloadWindows XP SP3:
Download (KB835221)
Install MS_UAA and Restart!
MS-UAA: (if you laready installed MS-UAA above no need to install again, if you do install it again dun worry about that.
Download (sp33867) size 53MB
Then install
Conextant High Definition audio
DownloadIf the AUDIO still didn't work read instruction at the end of the post.
MODEM:
(if the modem installed along with the audio no need for this driver)
Conexant HDAUDIO Soft Data Fax Modem with SmartCP Driver
Download
WirelessThere are 3 applicable wireless, choose base on your specs, If you do not know which to choose, try which work for you.
Intel(R) PRO/Wireless 3945ABG Network Driver
DownloadBroadcom Wireless Driver
DownloadAtheros AR5007 802.11b/g Wireless LAN Driver
Download
EthernetRealtek RTL8139/810x Family Fast Ethernet NIC Driver
DownloadStorageIntel Matrix Storage Manager
DownloadLightscribeLighscribe host system Software
DownloadWebcamCyberlink Youcam Driver
DownloadTouchpadALPS Touchpad Pointing Device Driver
DownloadCard ReaderRicoh 5 in 1 card reader driver
DownloadInputHP Quickplay
DownloadAll the driver tested and worked except intel matrix storage manager, webcam and lightscribe. So these 3 driver i added base on the current official driver listed for vista in Hp website. The driver version for XP choose base on the driver that often work with most HP/Compaq model.
Audio and Modem Driver additional Installation Guide:
1. If you faild to install audio drivers, read here for further instruction and installation guide:
http://laptop-driver.blogspot.com/2011/09/compaq-presario-a900-conextant-audio.html2. If you want to check if there are still drivers missing refer to my tutorial here:
http://laptop-driver.blogspot.com/2011/01/check-your-driver-in-windows-7.html(even this guide is for windows 7 you can apply it for XP)
3. If you have others devices with yellow mark. To get the driver for it get me the hardware ID for the devices. to get the hardware id you can refer my guide here.
http://laptop-driver.blogspot.com/2009/12/how-to-check-hardware-id.htmlyour feedback will help others, so leave your comment below.