How to get presario c700 sound driver? - Compaq Presario 700 470024-192 Notebook

Here there are six differnt c700 modles it should say under the laptop which one urs is :
http://h20000.www2.hp.com/bizsupport/TechSupport/ProductList.jsp?lang=en&cc=us&taskId=135&prodTypeId=321957&prodSeriesId=3466274
hope this helps :)

Http://h20180.www2.hp.com/apps/Lookup?lang=en&h_client=S-A-R525-1&cc=in&h_query=c700&h_page=hpcom,igmx&submit=Go%20â»&h_pagetype=s-002&h_cc=in&h_lang=en

select the model no and download the required driver
now first you have to install chipset driver
later you need to install sound driver.
Here its some tricky
while installation is in process it will ask you to search for driver for newly found hardware, click cancel. It will again ask you for a couple of time every time you click cancel after the process is over restart your system and after booting it will again ask you for driver search for newly found hardware again click cancel.. now check your driver is installed and play any sound file......do reply back