Question Motherboard Microphone not working

Oct 24, 2020
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Hello, i have a problem. I have a Gigabyte Z370 D3 paired with an Intel i5 8400 and 16gb of ram. About 2 days ago my microphone jacks stopped working. I thought buying an usb external audio card would solve the problem but it didn't. I also bought an internal PCI-e sound card but it doesn't solve the problem.I reinstalled windows 10 and nothing. I tried to disable the onboard audio from BIOS but nothing works. I can only hear noise when hearing the device from Control Panel. I'm thinking of switching motherboards but i really like this one and it's only 2/ half years old. If the problem is with the onboard audio chipset the PCI sound card should work no? Is there anything else that i can test?
 

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