Undetermined Noise and Solution, please help...

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Simon_245

Prominent
May 17, 2017
9
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510
Hello everyone,

This is my first time posting here. Please excuse any mistake I make.

I recently ran into this problem with my PC, it's getting louder and louder as we speak. I cant quite determine where's the source of the noise, I imagine it's one of the fans I just cant tell which one..
As far as temperature goes, I only play dota2, and it's not exactly a PC-killer kind of game, so the temperature should be around ~50*C. I have never overclock or anything like that.

I initially thought it's build-up dust, I did a thorough clean-up and the noise remains the same.

Please suggest what I should do to keep the PC a bit more quiet.

Here is the components, I used one of the best build last year (blackbird iirc), with a bit of a twist.
I don't have any third-party fans, should I consider buying one to reduce the noise?

RAM : Patriot Memory VIPER 4 Series 2400MHz (PC4 19200) 8GB Dual Channel DDR4
MotherBoard: Gigabyte LGA1151 Intel H110 Micro ATX DDR4 Motherboard GA-H110M-A
HDD : Seagate 1TB Desktop HDD SATA 6Gb/s 64MB Cache 3.5-Inch Internal Bare Drive
PSU: XFX TS Edition PRO650W (P1-650S-NLB9) 650W SLI CrossFire 80 PLUS BRONZE Certified Active PFC Power Supply
CPU: Intel Core i5-6500 Skylake Quad-Core 3.2 GHz LGA 1151 65W
GPU : EVGA GeForce GTX 970 04G-P4-3975-KR 4GB SSC GAMING w/ACX 2.0+, Whisper Silent Cooling Graphics Card
Case : Rosewill Computer Case - ATX Mid Tower - Black, Gaming - Three Included Fans - Two Extra Side Fans Supported - ...

Thank you for your help.
My apology if I didn't make my point clear, I'm really technically challenged, took me a good amount of time to just assemble the PC last year.
 
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Viking2121

Viking2121

Splendid
May 9, 2012
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Well if its hard to determine what fan is making the noise, I normally boot up windows and let it idle, and open the side panel and touch the center of the fans to slow it down and see if the noise changes, of course, don't slow the fan down for too long, its just to see what fan is making the noise.

Also, check your wires, sometimes wires can get jammed up by a fan and touch the fan blades and make noise.
 
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Simon_245

Prominent
May 17, 2017
9
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510


Is it okay to stop the CPU / GPU fans for a few second? I was afraid it would instantly fry the chip so I've been hesitated

Would definitely check this out today. Thank you
 
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aquielisunari

Judicious
Mar 31, 2011
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I don't recommend it nor is it okay but I have done it without issue in the past.

There is an extremely sensitive but expensive and possibly overly technical way to determine where exactly the noise is originating from. The cardboard tube inside a roil of paper towels is a good tool for finding the noise-maker in PCs.
 
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Simon_245

Prominent
May 17, 2017
9
0
510


Thank you, I will get back to you once I figure out the source of the noise.
 
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Viking2121

Viking2121

Splendid
May 9, 2012
2,118
208
22,390


I've never once had an issue slowing the fan down with my finger, just don't jam your finger in it or it might hurt or even cut ya, But it is safe to slow it down with your finger just to see if the noise changes, I mean you don't have to stop it completely, and no the chip will not fry right away at idle or even at load. sometimes you can even feel the frame of the fan and if its vibrating more than normal or other fans that probably the fan causing the issue.
 
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Simon_245

Prominent
May 17, 2017
9
0
510


I have determined that it's the PSU fan that causes the noise. It seems to be running regardless of the PC temperature / usage (it was running when I was idling.)

What is the next step I should be doing?

Thank you so much
 
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