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I recently got a Gigabyte GA-970A-DS3P motherboard. It appeared to be working fine, but blew a week or two ago. I got a replacement sent out (and changed my power supply, to be safe) that arrived this week, though it was denoted B stock. After installing it, I'm having major audio problems; the Realtek system reports everything is working fine but I'm hearing nothing from front or back panel. I have tried an installation of Ubuntu, which also says everything is fine and produces no sound. So far I've tried...

  • Updating BIOS to latest firmware
  • Updating drivers to latest on CD / website
  • Uninstalling and re-installing RealTek
  • Checking device manager (all fine, no errors)
  • Confirming volume up / right outputs selected.
  • Checked audio device enabled on BIOS

So far, nothing is working; with headphones plugged into frontpanel, I can detect a very faint hissing / crackling when a sound is playing, but no actual audio. If this is a bad audio chip on the mobo it would be bad luck, but not impossible. I'm just trying to determine what else to do to rule out software issue - any ideas how to procede? Obviously if the mobo is crap I'll send it back ASAP.

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  • Sounds like a hardware problem to me.
    – Eric F
    Jan 24, 2015 at 12:52
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    are the connectors for the front audio jacks connected properly?
    – Moab
    Jan 24, 2015 at 14:39
  • run a live cd of ubuntu, see if it can make sound work.
    – Moab
    Jan 24, 2015 at 14:40
  • @Moab Tried with HD sound in front jack, AC-97 (and HD audio disabled on Bios) and even unconnected. I tried Ubuntu on a USB stick with no Joy; same problem, with some crackling if I listened carefully with headphones. Fair to assume Hardware fault ?
    – DRG
    Jan 24, 2015 at 21:55
  • sound sounds like it to me.
    – Moab
    Jan 29, 2015 at 1:09

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Thanks to everyone who helped; while it's relatively rare, the replacement motherboard had a defective audio chip. I sent it back and the new one worked instantly; quite time consuming to go through all the software testing but at least it's answered!

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