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Weird noise coming out of the motherboard : vrm coil whine?

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bierjay

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Kind of satisfying to have found this thread and know I'm not alone with this. I have the exact same problem. I can also eliminate everything but the CPU and motherboard as the source (i9-9900k on Strix Z390-F). The noises are clearly audible when the PC boots or when I fast forward videos in Firefox. The Intel XTU stresstest was the loudest one.
But the thing is that not only my PC makes such noises, but my work laptop does too (Macbook Pro). A good bit quieter, but it's still there. Guess than it's kinda normal?
 
Mussels

Mussels

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bierjay said:
Kind of satisfying to have found this thread and know I'm not alone with this. I have the exact same problem. I can also eliminate everything but the CPU and motherboard as the source (i9-9900k on Strix Z390-F). The noises are clearly audible when the PC boots or when I fast forward videos in Firefox. The Intel XTU stresstest was the loudest one.
But the thing is that not only my PC makes such noises, but my work laptop does too (Macbook Pro). A good bit quieter, but it's still there. Guess than it's kinda normal?
Click to expand...

its normal, and it's not. It's technically a fault, but most places wont accept returns unless its really bad.

Locating the noisy area and drowning it in hot glue can really help.

it's usually these buggers (or an enclosed variant of them)
 
lexluthermiester

lexluthermiester

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Mussels said:
Locating the noisy area and drowning it in hot glue can really help.
Click to expand...
SuperGlue works too. I use it a lot to silence noisy chokes. The open-air chokes don't usually make noise though. The vast majority of the time it's the enclosed chokes that make the buzzing noise.
 
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Michael_O

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Just got a Z590 Asus Hero motherboard and experiencing the same annoying coil whine coming from VRM area. I had an Asrock Z490 before this which had slight whine when the NIC was under heavy load but nowhere near as bad as this board. I'm surprised really because Asus are usually top quality but this board is quite bad. Check out the attached mp3 of the sound it makes. Not sure what to do now :-(
 

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Mussels

Mussels

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Motherboard Asus x570-F (BIOS Modded)
Cooling Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory 2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s) Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
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Power Supply Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
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Keyboard Razer Huntsman TE ( Sexy white keycaps)
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Software Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores Nyooom.
Michael_O said:
Just got a Z590 Asus Hero motherboard and experiencing the same annoying coil whine coming from VRM area. I had an Asrock Z490 before this which had slight whine when the NIC was under heavy load but nowhere near as bad as this board. I'm surprised really because Asus are usually top quality but this board is quite bad. Check out the attached mp3 of the sound it makes. Not sure what to do now :-(
Click to expand...

You can:
1. live with it
2. try and mod the board physically (hot glue!)
3. try and work around it with BIOS settings (disabling C-states can help sometimes, at a cost of idle power efficiency)
4. RMA it
 
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