random soltek sound issuses

hello everyone
im new to posting here, but ive been reading for nie on 5 months anyway, when i play the likes of BF1942 after a while the sound beings to crackle,
could be a hardware issue?

here are my specs:
soltek SL-75frn2-1 mobo
2000+ (only slightly overclocked)
GF4 mx440se 64m video card
512m kingmax ram ddr333

any more specs, just ask

i used to get this playing doom back in the day

so i forgot to say i was useing the ac97
and ive just found out that when its set to 6 channel mode
all the speckers get random channels, like frount left will be rear right and fround right will be sub etc etc

i look forward to hearing/reading any info you have

Hey bro, I gave up on my onboard sound with this board!! Just get a cheap "creative" live add-on card, and all your probs will (should) be solved

Oh yeah! welcome to the forums mate

yeah the onboard sound crackles when you oc
on both my nf2s. seems to work alright if you
dont oc

yay i fixed it (i think)
just like with all things overclocker, it gets better with cooling
i just put an old 486 cooler on it and played bf1942 for many hours with no ill-sounds
thanks for everyones help

oh so i put it on the south bridge and a heatsink on the ac97 chip