I just got a p35-DQ6 and was having a problem with the onboard audio. Just wanted to see if anyone else was having the same problem or if it's something weird with my board. The info here about the Gigabyte Raid drivers causing BSOD saved me tearing my hair out once already (I had to switch to the JMicron ones for it to work).
When I'm in Vista32, I usually don't even see the "High Definition Audio Controller" under the System Devices in Device Manager. However, occasionally, it will show up. When it does show up, Windows does try to install the Microsoft drivers for it, but fails with the PNP problem code of 0x0000000A. I googled that code but wasn't able to find anything about it's meaning. I can install the Realtek drivers, but Vista never finds the Realtek chip. If I manually install the audio drivers, I can access info about the chip, but Windows can't start the device with "Code 10". I'm assuming this is because the HDA controller isn't installed.
Another thing I noticed, is that right after POST with the BIOS displays the PCI bus contents, there is rarely that entry in the list from Intel with the Dev_ID 0x293E which is the HDA controller. When it does show up, then windows does see it but fails as above. So something is preventing the ICH9R from always finding it's own HDA controller.
I also looked some places on the internet and saw people having HD modems conflicting with HDA. I tried removing my modem (it's older and still HW based instead of SW), but that didn't change anything. I also tried F3 (what was on the board), F4, and F5H BIOSes to see if it something going on there. I also tried removing my front panel connectors from the audio after reading the Realtek data sheet saying that some front panel audio connectors have bad HD audio connectors and tie the wrong signals together. No go.
So, something is preventing the southbridge from finding it's own parts. Any ideas? I also have a mail into Gigabyte about it, but they haven't read it yet according to their trouble ticket system. I have a sinking feeling I'm going to have to RMA the board.
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