This notebook, Compaq Presario CQ40-401AU Driver Download for Windows 7
HP Compaq Presario CQ40-401AU Notebook
AUDIO
IDT – High Definition Audio Codecs
Download SP45073
SATA DRIVERS
AMD AHCI Compatible RAID controller
Download
GRAPHIC:
ATI Mobility Radeon HD 3200/3450/4200/4330 Graphics
Download
ETHERNET:
Realtek RTL8102E/8111C Family PCI-E Gigabit Ethernet NIC Driver
Download
or
Realtek RTL8102E/8103E Family NIC Driver
Download
Cyberlink YouCam Software
Download
WIRELESS:
Note: normally wireless automatically installed so install wireless driver if only there are no wireless driver installed. There are two ways to check one is in your taskbar a small wireless icon appear near to volume and clock, the other one is by check at the device manager under the networks controllers section.
If you have Intel Wireless:
Intel Wireless LAN Driver for Microsoft Windows 7
Download
If you have Broadcom Wireless:
Broadcom Wireless LAN Driver for Microsoft Windows 7
Download
If you have Atheros Wireless
Atheros Wireless LAN Driver for Microsoft Windows 7
Download