No sound device detected

Hi everyone!

Im new to the forum and I don't know if im in the good category, but well, here's my problem:

I have an old Lenovo 3000 C200 with Windows xp service pack 2, and I cant find any way to get sound from it.

When I listen to music or play games, theres no sound.
In control panel, it says ''No sound device''

I tried multiple solutions on forums and nothing worked for me.
I also tried these steps:

I plugged external speakers and headphones, I checked the wires to see if the internal speakers/sound card where ok, I updated my drivers etc..

Even by searching Google nothing worked.

Sorry for my bad english