thanks for your reply.. Chipset for Realtek HD Audio ALC883 as I mention to the title of this thread. I believe its on-board to my laptop. I referred to the WinXp Dev Manager as it is telling me the real hardware ID. Anyway I beleive the right ans to my question so far..
is that the realtek alsa driver version 1.0.19 (a latest so far that automatically installed when I use "yum -i update") doesn't include the alc883 chip in the package. I download the ".bz2" package of this driver and untar to verify myself the content using "./configure --help" for the possible option of "--with-cards=<list> compile driver for cards and options in <list>;" but unfortunately my alc883 card is not included, thus the system defaulted the "hda-intel" to be the driver for my alc883 chip.
Anyway I hope they include this alc883 for future alsa driver version..