✔ 最佳答案
methods:
1 use motherboard cd install sound card driver
2 if no motherboard cd, use recovery cd to install sound card driver
3 if no 1 & 2 didn't work, check sound card brand and model and then
download driver for XP Windows.
How to checck sound card brand and model:
assume you are not expert,
1 download EVEREST Home:
http://toget.pchome.com.tw/intro/utility_other/23621_dl.html
2 install and run it, jot down the sound card brand and model
3 to google your sound card brand and model
4 download the driver and install and reboot to test
5 if fail, try download locations
6 if still fail, have some experts to fix it.