Question Cooler master V850 buzzing sound when approaching close to psu

Dec 17, 2019
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Hi,

About 20 days ago I got a brand new PC with a cooler master PSU (850V Gold) on it.

I have been using the system for about 18 days and now I noticed this problem in the PSU that it has this buzzing sound.

You hear it better when you get really close to the back of the power supply but in the normal distance, you have to focus to hear it.

I'm sure that it's not GPU it's exactly coming from the PSU, I've been listening to it since the moment that I noticed.

And it made me really nervous about the PC and I don't know what to do.

I called my PC's Support company and the told me that it's normal in these kinds of PSUs, but they couldn't convince me about it.


My specs:

PSU: Cooler Master V850
CPU Ryzen 7 3800X, 4400 MHz (44.25 x 99)
Motherboard Asus TUF Gaming X570-Plus
Motherboard Chipset AMD Bixby X570, AMD K17.7 FCH, AMD K17.7 IMC
System Memory 32688 MB
DIMM3: Corsair Vengeance LPX CMK32GX4M2A2400C16 16 GB DDR4-2400 DDR4 SDRAM
DIMM4: Corsair Vengeance LPX CMK32GX4M2A2400C16 16 GB DDR4-2400 DDR4 SDRAM
BIOS Type AMI
Graphics Card Asus rog Strix GeForce RTX 2070 (8 GB)
Monitor AOC 2243W [22" LCD]
Disk Drive Samsung SSD 970 EVO Plus 250GB
Disk Drive TOSHIBA HDWD120 (2 TB, 7200 RPM, SATA-III)
Optical Drive ASUS DRW-24D5MT

Case Master tech Atis 3x fans



I also uploaded the video that I recorded from the sound and the PSU please take a look if you can.

View: https://youtu.be/C1nW4JOVBYU



thanks.
 
Dec 17, 2019
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That's a good power supply but the sound isn't normal. Especially if it's all the time and not just under heavy load (coil whine). I would return it, while I could, if I were you.
Yes, it's always when the PC is turned on.
I don't know what to do. The returning system here is not good enough they would just waste time.
My main concern is if it's dangerous to the PC or not?
 
Dec 17, 2019
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I will try to RMA it. To see what happens.

Anyway thanks for your help

If anyone else has any experience, please share it.
 

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