Yes, I did it!
Well, after some work and lucky I got the sound working. I got the driver from here
but this driver didn´t worked in the first time I installed it. In the second attempt it did work. What changed from the first to the second is because I installed the RealTek AC´97 drivers before and I launched the setup.exe in the compatibility mode with Windows XP. Anyway, this driver may break the boot-up, so I have boot in safety mode and remove it. That is annoying, but the sound working after almost 20 days of silence is good enought to me.