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#11
The voltage doesn't even get up to 5v, it's 2v +/-.
That may not be sufficient for a computer mic (condenser mic).
Other than a problem on the motherboard, I would look at the wattage of the power supply.
Most likely a faulty motherboard, in the middle of replacing it.
Thanks for your help.
So, the replacement motherboard just came, all plugged in and the mic still does not pick up any sound.
Dunno what to do anymore.
Disconnect the HD Audio connector (for the front panel audio) from the motherboard. Then try the rear mic jack. In case the front panel is causing a problem.
I would also try a different microphone, even though this one works on another PC.
Disconnecting the HD Audio does not help, mic still doesn't work. I tried a different headset, same make, but a newer model and it didn't work either.
I don't know. Unfortunately "remote" troubleshooting doesn't always help and it takes a tech to physically troubleshoot.