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Hissing sound coming from my PC

RajTheGeek
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Hi there. 

Here's the situation: from the past few weeks a hissing sound is coming from my PC. I opened my pc and tried to figure out the source but I can't find it. It makes when something is loading. Like when I open the chrome, file explorer, during the game loading screen. Suppose I open the chrome and open youtube. The sound will come during the site loading. As soon as I'm in the site it stops. Then sometimes in between it happens again. I cannot figure out the reason for this. I removed my Hard drive and just turn on my PC with only SSD which has OS installed but it was still coming so I don't think my hard drive is making it. I stopped all fans and checked but still it was coming. So I don't think any of the fans are the cause either. Please suggest what to do. 

Here's my system:
Ryzen 3 3100
MSI B450 TOMAHAWK MAX
Corsair CX 550W
GTX 750 TI

Thanks.

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PSU fan? GPU fan? My 750Ti grew to be pretty loud. Theres very limited moving parts in a computer, other than transistors (dont make sound), hard drives, fans and pumps. Clean all filters, give it a blowing of compressed air if its dusty.

 

This is pure speculation but if you have a water loop, maybe you're coolant is low? Maybe that's the sound of water getting hot at the CPU?

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1 minute ago, SethK said:

PSU fan? GPU fan? My 750Ti grew to be pretty loud. Theres very limited moving parts in a computer, other than transistors (dont make sound), hard drives, fans and pumps. Clean all filters, give it a blowing of compressed air if its dusty.

 

This is pure speculation but if you have a water loop, maybe you're coolant is low? Maybe that's the sound of water getting hot at the CPU?

No I don't have water cooler. and I stopped my gpu fan with MSI afterburner and it was still making the sound. How to check if my PSU or motherboard is responsible. 

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Maybe it's coil whine?

GPU: RTX 2080 Super                                                                             Keyboard: Corsair K70 MK.2 RGB

CPU: i7-9700K                                                                                       Mouse: Logitech G PRO Wireless
RAM: 16 GB Corsair Vengance PRO                                                         Headset: Corsair HS70 PRO Wireless

PSU: CX650F                                                                                         Mousepad: Corsair MM500 Extended 3XL
MOBO: Asus Prime Z390-A                                                                     Controller: DualSense 5

Case: Lian Li Lancool II                                                                          Camera: Canon EOS M50

Monitor: Samsung Odyssey G5                                                                      Cooling: Corsair H100i Platinum

The white Rabbit                                                                                           Microphone: Trust GXT 252+

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Just now, MorbidAngel said:

Maybe it's coil whine?

Yes but I can't figure out where exactly is it coming from. I tried to listen carefully but I can't figure out which component exactly. PSU, GPU, mobo...

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