Hissing Crackeling sound while playing songs on pc

  The Scorpion 12:08 21 Oct 06

Please help

I recently upgraded RAM from 1GB to 1.5 GB.The CPU speed is 1.8 Gig, AMD Athelone. I think since then When I play downloaded songs I hear this constant hissing and crackles in the background as if it is coming from the activities going on inseide the pc case.
I checked device manager, settings of speakers,volume.Checked Bios setting for the sound card,updated driver etc--Every thing shows no error no comflict of any kind.
Could someone please help me to stop this Hissing & crackles in the background?
My OS is Win XP (home) and sound card is SB(sound blaster)Audigy (A800).

Many thanks for your health

  User-312386 12:12 21 Oct 06

Is the cable connected to the correct port in the sound card?

  User-312386 16:17 22 Oct 06

What type of sound card is it? Do you have the correct and latest drivers for it?

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