Support Information:
Device Type: Sound Card
Manufacturer: Hewlett Packard
Model: sr1910nx
Interface: Other
Operating System: Windows XP Home
Age of Device: < 1 year old
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=&qa5=19&qa7=1500&dp=1&qm0=sr1910nx&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Hewlett+Packard+Sound+Card+Hewlett+Packard+sr191 0nx+Windows+XP+Home+)

HP, in most case, does not provide free driver for their machines. But in your case they do. You need to learn what your hardware is, ie: Realtek xxxx chipset:

http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=228&lc=en&cc=us&dlc=en&tool=softwareCategory&query=sr1910nx&product=3184155&dest_page=softwareCategory