Support Information:
Device Type: Sound Card
Manufacturer: RealTek
Model: alc650
Interface: PCMCIA
Operating System: Windows XP Professional
Age of Device: Not specified
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=891&qa5=19&qa7=1500&dp=3&qm0=alc650&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=RealTek+Sound+Card++alc650+Windows+XP+Profession al+) | Research manufacturer RealTek (http://members.driverguide.com/index.php?action=getinfo&companyid=891)

This Realtek chipset came installed in what motherboard and pc system?

Try the Ac 97 driver posted here: http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=14&PFid=23&Level=4&Conn=3&DownTypeID=3&GetDown=false

and here's a page that contains several links to the ALC650 driver: http://www.free-codecs.com/Realtek_AC97_ALC650_Audio_Codecs_download.htm