thanks everyone for replying
in fact many times ago i installed this version of fedora and after many search in google i solved this problem, but know i forgot that solutions for this problem,
i know that this version of fedora work with this sound card, and i am sure that my laptop and its hardwares are all ok, i have vista in it also and there is no problem with vista.
my problem is that i forgot what i have done before for solved this problem, if anyone had this problem and solved it, tell me how?!!