New pc making weird noise, help?

EsaT · 8 Apr 2019 at 10:16

JC123 said:
Just had another listen and the sound seems to stop when i stop the front bottom fan. How do I disconnect just this fan? Would it be dangerous?

EDIT: It's 100% the damn case fans, both of them together seem to be creating the noise

Interaction of two fans can cause noise, but that should be at lower frequencies.

That 570-580Hz frequency hints more to some kind of noise of electronics, like pulsating current.
Who knows if there's some kind dirty PWM control going on chopping 12V.

JC123 · 8 Apr 2019 at 20:09

EsaT said:
Interaction of two fans can cause noise, but that should be at lower frequencies.

That 570-580Hz frequency hints more to some kind of noise of electronics, like pulsating current.
Who knows if there's some kind dirty PWM control going on chopping 12V.

You're right, after disconnecting both fans and on further inspection, the PSU is making the noise, but not the fan. Not sure what to do anymore.

Plec · 8 Apr 2019 at 20:19

JC123 said:
the PSU is making the noise, but not the fan.

Plec said:
Concentrate your ears on the GPU and PSU.

Plec said:
Complete system spec would be handy - but what is the PSU for now, brand/model? (FGS, don't say Kolink otherwise @pastymuncher is going to rip some poor random dolls head off.)

Well, @EsaT will appreciate the circle of this thread and I'll leave him to his summisation of the Kolink

EsaT · 8 Apr 2019 at 21:31

JC123 said:
You're right, after disconnecting both fans and on further inspection, the PSU is making the noise, but not the fan. Not sure what to do anymore.

Replace it with something whose design isn't from the time of Hadrian's Wall?
Because in PC tech terms 80+ efficiency is pretty much ancient.
Not to forget that PSU being at best 500W PSU.
Assuming anything in sticker can be trusted when it's (like many Kolinks) misleadingly advertised with some arbitrary peak power.
It's kinda like if car add said it can reach speed of 300 km/h... But only if dropped from rear door of cargo plane at 5km.

Bitfenix Formula would be my starting level recommendation for not shoe string budget PC.
https://www.overclockers.co.uk/bitfenix-formula-series-550w-80-plus-gold-power-supply-ca-22y-bx.html

That semimodular Antec Earthwatts would be next step up for pretty high end performance.

Plec said:
Well, @EsaT will appreciate the circle of this thread and I'll leave him to his summisation of the Kolink

Next time you need to check some sound you can record, besides cardboard etc tube, use Spectrum Labs.
https://www.qsl.net/dl4yhf/spectra1.html
Simple spectrum analysis is easy after correct audio input device is chosen and it's actually active in settings of Windows/sound card.

JC123 · 8 Apr 2019 at 21:33

EsaT said:
Replace it with something whose design isn't from the time of Hadrian's Wall?
Because in PC tech terms 80+ efficiency is pretty much ancient.
Not to forget that PSU being at best 500W PSU.
Assuming anything in sticker can be trusted when it's (like many Kolinks) misleadingly advertised with some arbitrary peak power.
It's kinda like if car add said it can reach speed of 300 km/h... But only if dropped from rear door of cargo plane at 5km.

Bitfenix Formula would be my starting level recommendation for not shoe string budget PC.
https://www.overclockers.co.uk/bitfenix-formula-series-550w-80-plus-gold-power-supply-ca-22y-bx.html

That semimodular Antec Earthwatts would be next step up for pretty high end performance.

Next time you need to check some sound you can record, besides cardboard etc tube, use Spectrum Labs.
https://www.qsl.net/dl4yhf/spectra1.html
Simple spectrum analysis is easy after correct audio input device is chosen and it's actually active in settings of Windows/sound card.

LMAO thanks man, may I ask if the Corsair TX550m would be sufficient?

Plec · 8 Apr 2019 at 23:16

EsaT said:
It's kinda like if car add said it can reach speed of 300 km/h... But only if dropped from rear door of cargo plane at 5km.

Great analogy.

EsaT said:
Next time you need to check some sound you can record, besides cardboard etc tube, use Spectrum Labs.
https://www.qsl.net/dl4yhf/spectra1.html
Simple spectrum analysis is easy after correct audio input device is chosen and it's actually active in settings of Windows/sound card.

Thanks for the link - interesting software and with an impressive frequency range:

Spectrum Lab said:
Bat Converter
If you have a suitable soundcard, you can use SpecLab to make ultrasonic bat calls visible and audible in real-time.

EsaT · 9 Apr 2019 at 09:50

JC123 said:
LMAO thanks man, may I ask if this would be sufficient

Corsair TX would be good, just remove link.
Forum rules forbid mentioning/linking to competitors.

Plec said:
Great analogy.

Thanks for the link - interesting software and with an impressive frequency range:

Well, flying car has already been done...

That was the first free program I found when once looking for something to do spectrum analysis.
Media player voice print etc plugins aren't exactly accurate for that.

This is actually nice video about how to analyze RPMs
https://www.youtube.com/watch?v=xutm6oMTBw8
If you've played Sub Command or any modern submarine game principles are similar.

JC123 · 9 Apr 2019 at 12:00

EsaT said:
Corsair TX would be good, just remove link.
Forum rules forbid mentioning/linking to competitors.

Thanks for the help dude, ordered the tx550m, should be here tomorrow, I'll update on the noise after installation.

JC123 · 10 Apr 2019 at 20:33

PSU installed (only cut myself once!), noise has gone. Thanks for your help guys, much appreciated.

Plec · 10 Apr 2019 at 20:54

JC123 said:
PSU installed (only cut myself once!), noise has gone. Thanks for your help guys, much appreciated.

Thanks for updating.

EsaT said:
That was the first free program I found when once looking for something to do spectrum analysis.
Media player voice print etc plugins aren't exactly accurate for that.

This is actually nice video about how to analyze RPMs
https://www.youtube.com/watch?v=xutm6oMTBw8
If you've played Sub Command or any modern submarine game principles are similar.

Thanks @EsaT - particularly liked how he worked around the dremel rpm solution.

If i get time at the weekend i'm going to calculate the speed of my PSU fan - which i recently replaced - i'm sure it's running faster than expected for a 7V mod...

Danny75 · 10 Apr 2019 at 21:00

EsaT said:
Well, flying car has already been done...

That was hilarious, thanks for sharing. That car could have landed anywhere and they weren't even carrying umbrellas.

EsaT · 10 Apr 2019 at 21:56

JC123 said:
PSU installed (only cut myself once!)

Welcome to the club.
Getting cuts used to be norm in good old times with lots of sharp stamped steel edges inside the cases.
And then wondering from where those reddish brown stains appear to things you touch...

Danny75 said:
That was hilarious, thanks for sharing. That car could have landed anywhere and they weren't even carrying umbrellas.

Well, car didn't have MCAS, so it went to intended direction.

I think also at least some Frenchies watched Monty Pythons...

Here's another juicy clip to use in approriate spots:
https://forums.overclockers.co.uk/posts/32509292