I have on-board sound at the moment and it causing me no end of problems. Most of the time I have to play music in media player to kick it in. I have tried driver updates, uninstall and re-install and even upgraded my ME to XP home. And the problem stays the same. I suspect that I have a hardware problem. So, to fix this I was going to buy a PCI sound card. The question is: How do I get the system to overlook the on-board sound and use my new and improved PCI one???
You will have to disable onboard sound in the Bios as octaglider points out.
It's very straightforward and you just have to follow the instructions - use the numeric keypad's plus or minus key to enable/disable the onboard sound before saving and exiting. You may have to search through the index to find where it is listed.
The method of getting into the bios can vary, but is normally by hitting the Delete key shortly after turning your system on. You will see a message at the bottom of the screen.