You should be able to find it printed on the board
Yeah it's on the board (didn't like getting to it though), Problem is, why are there so many different types of makes and models that makes everybody wondering it the right drive is used.
I had one computer which had pc chips, I downloaded realtek for it but It didn't work. What I decided to do was to just go to the BIOS set it default then uninstall all drives related to sound.
I started hearing beeps from the motherboard which was a good thing and when windows started (XP) all drives were detected and the right drive was installed. Sound came in clear. Since the sound card was embedded in the motherboard no conflict problem existed.
The other computer I had didn't really have an embedded sound just a simple bell maybe. I didn't know it at the time because since it had all three port (holes) I though it was a full-functional sound card, but it wasn't. I only recognized that after uninstalling all drives related to sound and removing the sound card (yes, this computer had a seperate sound card, which made having an onboard sound card suspicuous because I bought the computer cheap).
So when windows started I heard the same warning tones for any error or warning message that appeared. When I put the sound card back in, all drives were automatically detected but then I noticed there was a conflict with resources. SO I restarted the computer went to BIOS again and this time disabled the 'Game port' thing and AC97 audio. Then I uninstalled the drivers again, restarted and everything was detected. Last problem was that due to removing the speaker cable all the time and switching it from motherboard to sound card, I placed it in the wrong (hole), that problem caused another 20-30 minutes of wasted time, but then it finally worked!!
Counclusion: Troubleshooting is one messy business if you don't have much experience. It took me a week yes, but it's better than taking it to the computer shop.
