Realtek Audio not working after Bios update


New member
Nov 20, 2023
I updated my PRO B660M-A DDR4 bios from 7D43v1E to 7D43v1F through MSI control center, after that Realtek Audio is not detecting/showing in Windows 11 and Windows 10 dual boot OS. The Audio is enabled in Bios.

Module Information
MS-7D43 1.F0
Intel Chipset Drivers 10.1.19376.8374
Realtek PCIE Network Drivers 11.10.0720.2022
Intel Serial IO Driver 30.100.2237.26
Intel ME Drivers 2319.4.30.0
Intel GNA Scoring Accelerator
LED FW Update(7D43) 01

System Information
Product Name: PRO B660M-A DDR4
OS: Microsoft Windows 11 Pro 64-bit Ver.2009 (OS build 22631.2715)
BIOS Version: 1.F0
BIOS Release Date: 11/13/2023
CPU: 13th Gen Intel(R) Core(TM) i5-13400F
Memory: 32 GB @
- 16 GB DDR4-3600, G Skill Intl F4-3600C18-16GVK
- 16 GB DDR4-3600, G Skill Intl F4-3600C18-16GVK
Graphics: NVIDIA GeForce GTX 1650 SUPER
Drive: SSD, XPG GAMMIX S70 BLADE, 476.94 GB
Network: Realtek Gaming 2.5GbE Family Controller #2
Network: TP-Link Wireless PCI Express Adapter #2
Power Plan: GUID: 381b4222-f694-41f0-9685-ff5bb260df2e (Balanced)
If you have the exact same problem,
Reatek audio not working after BIOS update
Please fill in the form and we will get back to you!!!
<< Here is the form >>

Please note we need the serial number on the Motherboard 24Pin connector found here
MB serial.jpg
Can confirm sound is working on 7D43v1G1

I had to rollback to 7D43v1C (the latest working version AFAIK) then and only then the upgrade to 7D43v1G1 works ! (I tried H to G1 and it doesn't work)

Note that I have Fast Boot and Secure Boot disabled. Those are the only items changed from the default BIOS configuration.

Thanks !
Ok I have sent another form. I hope it works now.

Please help - when I reverted the BIOS the audio works, but i get 100% increase in power usage in idle desktop. On newer versions of BIOS I had 20W now its 40W in idle, nothing else has changed.
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same for me on MSI Pro B660M-a DDR4 i upgraded my bios to version 7D43v1H from version 7D43v1E-> no sound.
After rerolling to version 7D43v1E my sound is working again ,but it seems like i have the same problem that User "aleksander.kamierczak153602d6" has. Idle power has nearly doubled.

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