Acoustic noise mitigation что это
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I recently got a new motherboard, the Gigabyte Z790 UD AC, and I am hearing a fairly annoying amount of coil whine. It goes in and out making it worse than just a constant noise. I was hoping the Acoustic Noise Mitigation setting in my bios could help but there are 2 slew rate settings and I want to know what they do before I enable anything. They both go from 2x-16x. If anyone can inform me that would be great.
Question Question about accoustic noise mitigation
Hi,
I am looking for more infos on this setting on my asus Strix Gaming z790-e board / 13700k
I am getting coil whine from moving the mouse at higher polling rate and some coil whine coming from the motherboard VRM. I managed to reduce it a bit by lowering vcore but I read this setting car help.
However i don’t understand what it does and what are those settings "False / True" and the number associated with it.
Does someone has some more infos about it?
Lutfij
Titan
- Nov 4, 2022
- #2
If you stand next to a transformer, you’re going to hear the same sort of whine/buzzing just on a larger scale. Anything that has power flowing through it will end up being a noisy environment. That being said, what BIOS version are you on at this moment of time? Asus have in the past released BIOS versions to mitigate VRM temps and in some cases, the noise coming off said power delivery once they were notified of it via forums/testers/reviewers.
Make and model of your PSU and it’s age?
drea.drechsler
Champion
- Nov 4, 2022
- #3
Does someone has some more infos about it?
I gather your BIOS has a setting called "Acoustic Noise Mitigation" and that’s what you’re asking about?
Only a guess on my part but it might do something like change the switching frequency of the CPU VRM.
"Coil whine" you hear is because the VRM switches it’s FET’s on and off at a very high frequency. usually in the 200-300Khz range. so very high currents are being turned off and on at that rate. That can make the coils vibrate at a sub-multiple of that frequency, something in the audible range. It’s kind of like the same way a voice coil on a speaker works. Changing the frequency might push the vibration into an in-audible range or into a range where the coils don’t resonate.
The BIOS setting might also change the phase duty cycle. or how many of the phases are being used during light current loading. Turning on more phases during light loading means each phase is passing a much lighter current at a time and so there’s less energy to vibrate its coil even though more energy over-all is being used.
The side effect of each of these mitigations is lowered efficiency of the VRM during lightly loaded conditions such as when just mousing around a web page in a browser.
Bios ASus : Acoustic noise settings
But today i updated my bios for Maximus extreme XIII and i activated the Accustic noise thing in bios with the true/false option.
I changed all the lines to False x 8 and saved bios, and now i dont hear anything when i move the mouse !
So it fixed it . HURRAY !
The only thing i can hear now is the remaining echoes of the old coil noise from the Hero board.
*
RIP Hero XIII. You where a true warrior but you had ur problems and was never wanted in life
"HI! Always good info the feedback!
That's where i'm at. Accustic Noise + FALSE/4 or FALSE/8 did it for me! If do not enable accustic noise in BIOS I got whine when moving the mouse at idle . When room is silent, it can be heard. it's annoing yeah, but from what i've researched it a common thing with these boards. I have a ASUS X58 premium from back 2010 still running never had these issues at all!!
Well from now will check if this thing doen's get worse over time. Keep posting
Regards,
Rick"