New build audio pop/crackling/scratching

[Deanje]

Hi Guys,

Just put together a new build/major upgrade and I'm suffering from audio popping/crackling/scratching from the on-board sound (toss up whether to post here or the mobo forum...). It can be made very apparent by messing around with the Windows volume slider.

Specs:

• Asus ROG Strix X570-F mobo
• AMD Ryzen 5800X
• HyperX Predator 3600Mhz RAM
• old GTX 1070
• old Corsair HX 650w power supply

Tried a few different bios versions, few different audio drivers, tried running the RAM at 2400Mhz (apparently some issues manifest when the FCLK is being pushed a bit high); not really had much luck.
LatencyMon shows no DCP issues.

One odd thing about the driver situation: if I use the Windows built in drivers rather than the Realtek drivers, the front panel audio is better but the back panel is still affected. When using the Realtek drivers, if I tick the option to split the front+back audio streams, then the front panel is better and back panel awful; when not split, both front+back are awful.

Never experienced anything like this on the old onboard sound I was using (MSI Z87/Intel platform).

Seems like it could be hardware related, but unsure where to go from here.

 

[Deanje]

I've played around with the sample rate, didn't seem to make much of a difference. I haven't tried with speakers, but have tried with two sets of headphones; both are ok elsewhere (and in the old PC).

Edit: Ok, the plot thickens, and surely confirms bios/driver issues:

Reinstalled Windows, still have the issue.
Put three YouTube videos playing at once to see if it was too many audio samples/channels/whatever playing at once being the problem - audio perfect.
Mess around with the Windows volume slider while the YT videos are playing - audio perfect.
Stop the YT videos and mess around with the Windows volume - popping/crackling back!