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PSU Noise Help

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Posted · Original PosterOP


I have recently set out to build a PC. Everything has gone fine, but had serious problems sourcing a PSU. So I opted to buy a second-hand PSU off of eBay. I made sure to buy a PSU that was endorsed by PSU tier list out on the net. I seem to have this problem (see sound file attached) during the first 20 mins the sound is very audible and after you can't hear it unless you hold your ear close to the PSU. At first I thought it was feedback, and thought the motherboard was maybe the issue but now I'm quite sure the noise is coming from the PSU. Can you advise troubleshooting steps or whether I should be concerned at this? Just weighing up does it need returning or is it normal. Hearing PSU whine videos on YouTube it doesn't quite sound like that.



  • Case: SaharaGaming P35
  • PSU: Corsair TX750W
  • CPU Cooler: Arctic Freezer 34 eSports DUO
  • Drives 465GB Hitachi HGST HTS545050A7E680 (SATA )  223GB SanDisk SDSSDA240G (SATA (SSD)) 465GB Hitachi HGST HTS725050A7E630 (SATA ) 238GB SAMSUNG SSD PM871a M.2 2280 256GB (SATA (SSD))
  • Processor: AMD Ryzen 5 3600 6-Core Processor               (12 CPUs), ~3.6GHz
  • GPU: 4095MB NVIDIA GeForce GTX 1050 Ti (NVIDIA)
  • Motherboard: TOMAHAWK MAX (MS-7C02) (AM4)
  • RAM: Corsair 16GB Vengeance 3200


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this could be caused by your drives, otherwise It's coil whine, common on some PSUs

Main PC [The Rig of Theseus]:

CPU: i5-8600k@5.0GHz | GPU 1: GTX 1660@2070MHz | GPU 2: GT 710 | RAM: 16 GB DDR4 3000MHz | Case: Lian Li PC-O11 Dynamic | PSU: Corsair RM 650i | SSD: Corsair MP510 480GB & Kingston UV400 120GB |  HDD: 2x 2TB WD Black | Motherboard: Gigabyte Z390 Aorus Pro | OS: Windows 10 Pro & Linux Mint 


Secondary PC [Why did I bother]:

CPU: AMD Athlon 3000G | GPU: Vega 3 iGPU | RAM: 8 GB DDR4 3000MHz | Case: Corsair 88R | PSU: Corsair VS650 | SSD: WD Green M.2 SATA 120 GB | Motherboard: MSI A320M-A PRO MAX | OS: Windows 10 Pro


Server [Solution in search of a problem]:

Model: HP DL360e Gen8 | CPU: 1x Xeon E5-2430L v1 | RAM: 12 GB DDR3 1066MHz | SSD: Kingston A400 120GB | OS: Debian Buster


Laptop [A hunk of shit]:

Model: MacBook Air Late 2010 | CPU: Core 2 Duo L9600 | RAM: 4 GB DDR3 1066MHz | OS: MacOS Catalina 

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