Sound driver i dont have the mother board cd so my sys lacks the sound drivers i want to download from net but how my system,s mother board no is intel nh82801gb

You'll need to find out what is the chipset on your motherboard. You can always go to the manufacturer's web site and download the drivers. If the sound chip comes from another manufacturer you can go to it's web site and download the driver. But you have to know the sound chip name. Unfortunately motherboard manufacturers don't always use the same sound, video or other peripheral devices. If you're brave, look at your motherboard and try to locate the sound chip. Then go to the website and get the specific driver. If that doesn't work, then you might try a program that will identify your chipsets. www.belarc.com has one.