My computer was old and a bit slow, and the microphone was not working. So I replaced the motherboard, CPU and memory, mostly for a faster experience. All works well, except the microphone still does not work. Sound is fine, and windows detects when I plug in a headset microphone.
I have installed the manufacturers drivers, gone through all the settings, and the headset microphone works in 2 other computers. I have reinstalled windows 8 and 8.1 from a clean state. And still have the same problem.
I have enabled and disabled all other unused audio devices to see if they conflict, but no change.
I have also purchased a USB SoundBlaster Play device, installed the drivers, and sound works through the USB device, however the microphone still doesn't work. This is really frustrating, since i can't work out what it could be that would stop the microphone from working either on the jack on the mobo, the front panel of the case (Which I have plugged in via the motherboard), or even through a USB sound card.
Hoping someone else can help.