ASRock B450M Pro4 Audio Issue

Unfortunately I couldn't get audio to work on my B450M + Ryzer 5 1600AF combo. I tried both the motherboard sound out (green) and the front sound out.

Specs:
ASRock B450M Pro4 - running latest BIOS
AMD Ryzen??5 1600AF
GTX 1080

Things I tried:

• Enabling/disabling "gnd HD audio" in bios
• Changing audio type between AC97 and HD in bios
• Reinstalling realtek drivers, both from asrock and other resources (ussed display driver uninstaller for a cleaner purge)
• connecting both speakers and earphones to both front and back output
• removing and reseating the front HD audio cable (tried with cable removed)

I couldn't get the audio device to show up in Device Manager, the GPU is showing under the sound devices and audio is working fine over HDMI.

Should I downgrade BIOS? (is that even possible?)

ket wrote: Sounds like you have a dead integrated audio chip. You can either RMA the board or send it back to the retailer for replacement or pick yourself up a cheap PCIe audio card, Xonar SE or AE cards are decent and comparable to most on-board audio, which is to say they aren't amazing so if going that route track one down at the lowest possible price, second hand if you must.

Such a shame. Unfortunately I bought this motherboard in January so RMA is the only option, which leaves the PC without a motherboard for who knows how long. I sent asrock a support ticket to see if there is a software fix, lots of people have the same issue on reddit and other forums - and some of them found drivers which solved the issue, unfortunately none of those solutions helped me.

Is there any easy way to verify whenever the chip is dead?

Thank you, I will try that and report back on Friday. I don't have physical access to the computer at the moment. Do you think it is worth upgrading/downgrading the BIOS or that is futile effort?

Update for whoever is interested. I sent the motherboard in (Europe - authorized service) and they rejected it saying that they can't reproduce the issue. I tried literally everything before sending it in and now I am stuck with a fried audio chip.

Was the RMA center specifically told the on-board audio doesn't work? Service center techs can be pretty stupid sometimes unless there is a specific note added in the box as well.

I haven't contacted my Asrock contacts in a while but if you want I can try getting hold of one of them to get this sorted for you.

Edited by ket - 30 Jul 2021 at 7:35pm