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PC emits unusual sounds when under stress.

PC emits unusual sounds when under stress.

I
iRaine
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06-17-2025, 08:16 PM
#1
Hey, your PC began producing unusual sounds when under stress around two days ago. After playing games for 5 to 10 minutes, the noise starts. You also notice vibrations, suggesting the power supply unit might be involved. Here are your system details: Processor – 11th Gen Intel Core i7-11700F @ 2.50 GHz; RAM – 16 GB; Video Card – NVIDIA GeForce RTX 3070; Total Video Memory – 16 GB; Dedicated Memory – 8.0 GB; OS – Windows 11 (64-bit); BIOS – Version R01-A4; Manufacturer – American Megatrends Inc. I’ve attached a sound sample and a CPUZ dump for your reference. Noise.aac, CPU-Z Dump.txt
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I
iRaine
06-17-2025, 08:16 PM #1

Hey, your PC began producing unusual sounds when under stress around two days ago. After playing games for 5 to 10 minutes, the noise starts. You also notice vibrations, suggesting the power supply unit might be involved. Here are your system details: Processor – 11th Gen Intel Core i7-11700F @ 2.50 GHz; RAM – 16 GB; Video Card – NVIDIA GeForce RTX 3070; Total Video Memory – 16 GB; Dedicated Memory – 8.0 GB; OS – Windows 11 (64-bit); BIOS – Version R01-A4; Manufacturer – American Megatrends Inc. I’ve attached a sound sample and a CPUZ dump for your reference. Noise.aac, CPU-Z Dump.txt

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E
erroch
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06-17-2025, 08:16 PM
#2
I don't have time to listen to audio files, but noise and vibration often point to a fan issue (or pump, unless you mentioned water cooling). A faulty motor can cause these vibrations occasionally, though this is uncommon. You might try opening the fan bearing to apply lubricant, but results are usually limited. Swapping to a new fan is typically more cost-effective and should be done only once. If your PSU fan is the concern, verify if your power supply is still under warranty and reach out to the manufacturer to inquire about returns or replacements. Good luck!
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E
erroch
06-17-2025, 08:16 PM #2

I don't have time to listen to audio files, but noise and vibration often point to a fan issue (or pump, unless you mentioned water cooling). A faulty motor can cause these vibrations occasionally, though this is uncommon. You might try opening the fan bearing to apply lubricant, but results are usually limited. Swapping to a new fan is typically more cost-effective and should be done only once. If your PSU fan is the concern, verify if your power supply is still under warranty and reach out to the manufacturer to inquire about returns or replacements. Good luck!

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M
mat_fram
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06-17-2025, 08:16 PM
#3
I reviewed every fan except the PSU. Even setting the fan speed on my RTX 3070 to maximum didn't produce any noise. That suggests the issue might be with the power supply.
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M
mat_fram
06-17-2025, 08:16 PM #3

I reviewed every fan except the PSU. Even setting the fan speed on my RTX 3070 to maximum didn't produce any noise. That suggests the issue might be with the power supply.

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C
Cristian_PvP7
Junior Member
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06-17-2025, 08:16 PM
#4
If you have a stethoscope, just bring it close to each fan and it should be apparent which one makes the noise. You can also use some flexible tube or hose to do the same thing. This is an old mechanic's trick to locate the source of abnormal sounds in a noisy environment. As an alternative, you can simply test with another PSU and see if the sound/vibration issue persists. Have a nice day !
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C
Cristian_PvP7
06-17-2025, 08:16 PM #4

If you have a stethoscope, just bring it close to each fan and it should be apparent which one makes the noise. You can also use some flexible tube or hose to do the same thing. This is an old mechanic's trick to locate the source of abnormal sounds in a noisy environment. As an alternative, you can simply test with another PSU and see if the sound/vibration issue persists. Have a nice day !

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mcDavoz
Senior Member
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06-17-2025, 08:16 PM
#5
Also, resonance. It might not produce any sound at 100% fans, but there could be a particular speed where something begins to vibrate and emit noise. Observe the fan speeds (CPU, GPU, case fans) when the PC becomes noisy and attempt to mimic it without stress. If nothing occurs—this likely points to a PSU fan activating and making some sound. If you have an HDD, it could also significantly affect the noise level, particularly if it's outdated or malfunctioning.
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M
mcDavoz
06-17-2025, 08:16 PM #5

Also, resonance. It might not produce any sound at 100% fans, but there could be a particular speed where something begins to vibrate and emit noise. Observe the fan speeds (CPU, GPU, case fans) when the PC becomes noisy and attempt to mimic it without stress. If nothing occurs—this likely points to a PSU fan activating and making some sound. If you have an HDD, it could also significantly affect the noise level, particularly if it's outdated or malfunctioning.

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