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PSU Question: New Corsair Fan

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#21
Bryy

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New PSU just buzzes.

 

Thinking it is the wiring now.



#22
Humanoid

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Real mechanical buzz or more like electrical, high-pitched coil whine?

#23
Whitefox789

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It's probably just electrical noise (leftover AC ripple from the transformer and filter capacitors to a DC signal) that wasn't fully filtered out, it won't affect your DC signal too drastically (could have AC readings on it of about maybe 250 - 500 uV). If anything it'll just be an audible annoyance.

 

I don't know why, I've taken apart so many PSU's that are all the same model yet some of them will make a small audible noise and some of them won't its completely random.

 

 

Real mechanical buzz or more like electrical, high-pitched coil whine?

The only moving mechanical part in the power supply should be the fan. I think he would of noticed that sound pretty quickly.


Edited by Whitefox789, 04 March 2014 - 09:40 PM.


#24
ManifestedISO

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I'm lost now. So there was an old power supply that didn't fan-on at start-up, but also a case fan that wasn't installed but didn't fan-on either ... plus a CPU fan/heatsink not fanning or sinking? And an enclosure that's not hooked up to anything, but then a new PSU that makes noise ... whatever the problem is, I'm gonna need another beer to re-read this thread. :yes:  :aiee:  


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#25
Humanoid

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Within the fan itself though it could be something as simple as the fan hitting a wire every rotation, or a dodgy bearing. Having no background whatsoever in electrical stuff, coil whine does seem like alien magic to me, heh. The weirdest things can trigger it, such C-states in the BIOS or other power-saving settings, though more commonly it's a bad cap or a GPU pushing hundreds of frames a second. Some people solve it by dabbing hot glue on the offending component which is a pleasingly low-tech solution.

But yeah, I'm actually a bit lost in what the present setup is now.

Edited by Humanoid, 04 March 2014 - 10:15 PM.


#26
Whitefox789

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That is a possibility a low one, but then again I've seen PCB's that have rings of LED's on them with a color of one LED being different (A ring of red LED's yet for some reason one white LED got into that ring).

 

Hot Glue is awesome for electrical solutions. You would be surprised some manufacturers of electronics cover all solder points on the PCB with hot glue to protect them against the external possibility of creating an unintended short.

 

 

whatever the problem is, I'm gonna need another beer to re-read this thread. :yes:  :aiee:  

 

I'm not there yet, I'll be getting close if we don't find a solution soon.  :wowey:


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#27
mkreku

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I use a Corsair TX750M and now I'm pretty peeved that mine has an always-on fan. Damn you, Humanoid!



#28
Bryy

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Yeah, I figure it's just the PSU working. It's real faint. It's not the whine.

I'm lost now. So there was an old power supply that didn't fan-on at start-up, but also a case fan that wasn't installed but didn't fan-on either ... plus a CPU fan/heatsink not fanning or sinking? And an enclosure that's not hooked up to anything, but then a new PSU that makes noise ... whatever the problem is, I'm gonna need another beer to re-read this thread. :yes:  :aiee:  

1) Old PSU was dead from the get-go. It blew up my old computer.

2) I have a new computer with half old parts and half new parts. Bought a new PSU.

3) I didn't know about the power fan in Corsair PSUs. 

4) Case fan started going when the Old PSU was still plugged in.


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#29
Whitefox789

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^ Sounds like you had a good hands on experience for what happens to a computer if it can't reach the wattage levels it needs.

 

Time for a Play

 

 

*Curtains Rise*

 

CPU, CMOS IC's, GPU, HDD, etc.: WE WANT VOLTAGE!

 

PSU: I can't meet your demand.

 

CPU, CMOS IC's, GPU, HDD, etc.: WE DON'T CARE! *attempts to draw power*

 

CPU, GPU, HDD, etc.: Ohh no one of the CMOS IC's we need, didn't power on correctly so it burned out.

 

MB dies all attached devices lost communication to both the Northbridge and Southbridge...

 

As the curtains fall on this play there is nothing but silence.



#30
ManifestedISO

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End Of Line.



#31
Bryy

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Wow, so I just started Sir, You Are Being Hunted... and the whole computer just started GOING... the PSU fan just started spinning overtime!







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