Hello, maybe someone has a clue as to what to do for me, but I am at a loss.
I have a Windows Vista setup on an eMachines ET1161-03. It has the ECS MCP61PG-GM Version 2.1 motherboard by Gateway in it. It is a replacement, as the old board crapped out.
The old board has (or had) Realtek HD Audio (5.1) built-in, which worked great. The new board has the same part number and except for the bios, has all of the same features. I flashed the bios to a backup of the original board I had made, to update it to the latest bios.
At first I could find no audio hardware listed in Device Manager when I booted the computer up after the motherboard replacement. I also was getting the "No audio output device is installed" info from the sound system.
I set Device Manager to show devices by connection, and I then found a High Definition Audio Device listed as a System device. Weird to me. Anyone seen this before? I hadn't.
The thing is, I think it is a left-over from having had an add-on MSI N430GT nVidia-based card installed previously, as there is no sound and all other Windows sound functions show no sound hardware installed. I've searched and seen only one other case of where this had happened but didn't see what the solution was.
That video card has audio in it to feed the HDMI output. When the card was installed, I had both audio devices in Device Manager, under sound devices. Now there is no entry for sound devices and only this one entry for a device under system devices.
I've tried uninstalling and scanning for hardware changes, and it comes back the same every time. I then tried re-installing all of the chipset drivers for the motherboard. No go there either. So what's next? The oldest restore point in system restore isn't prior to the video card install, or I would have just been able to do a restore.
When I try to install fresh drivers for the Realtek audio, it tells me there is no hardware. The bios setup shows it as enabled.
I tried using a KNOPPIX cd to test the sound system, but it won't boot unless I select failsafe at the prompt. Should there be sound even then? If so, then the sound on this board could just be bad, and I can add a sound card for cheap and be done. I will probably do that anyway.
Still, shouldn't the audio device be detected even it it doesn't deliver output? Wouldn't the mother board flag this at boot if it were bad? Has me baffled. Please help me get this to work if possible. At least to know if the hardware is good or bad.
Thanks all in advance.