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Hey, i'm not sure if anyone can help, but my sound isn't working all of a sudden, it was working perfectly fine last night, now all of a sudden its not working, ive checked if its connected, it must be because when i put it full blast, you can here background crackling. I'm not sure what else i can really say...anyone help please

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Just go to run and type SNDVOL32 in the box and make sure all the levels are up and not muted.

The CMOS probably has nothing to do with this. If your sound is on board, there will probably be an entry in your CMOS Setup program that will Enable or Disable the onboard sound. However, if you didn't manually change that, and everything else is working fine, then thats probably not the issue.

If the SNDVOL32 check doesn't work, and all your wires are plugged in the right places, there is more chance that the sound driver got messed up than anything else. Go into Device Manager and make sure that under Sound,Video & Game Controllers there is nothing with a yellow exclamation mark. If there is, then that item has a problem/missing/screwed up driver.

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