Whistling PC

[street1]

street1: What do you mean by this super sensitive hearing issue needs attention?

Sorry ,it was you not I who made an issue of your very keen hearing.



I in know way meant to offend you.I think it is wonderful to have
A gift but, sometimes in unique cases it is annoying to the one who
is gifted.

I really don't think you would hear your CPU.The vibration between your CPU and heatsink may be remedied by cleaning the CPU and heatsink and reapplying thermal paste.

I saw a similar post months back at techspot.com and the person in that case had issues like you are having with your computer.

http://www.techspot.com/vb/all/windo...erd-noise.html

[street1]

slgrieb and xpuser357 all I can say is......

[parismouton]

Been watching this thread, has made me chuckle.

When i lived in Paris, i had a 'meowing cat' for about the last year in my appartment.
It drove me nuts. Every 30 mins or so in the evening i heard it. A distinct 'meow'. I could never see the bugger!
I asked the neighbours if they maybe left their cat out on the balcony overnight. no neighbours had cats. I spent a few nights looking from 5 floors up into the garden below, no cat to be seen.
I moved back to the uk and forgot about it.....until i picked up the old pc from Paris a few months later.......back came the 'meow'.

yes, its a strange world, but my Athlon XP 2400+ actually does 'meow'. the only thing left of that original pc is the processor. Everything else has been changed.

Weird, but true.

Best wishes,
Parismouton and his Digital Cat (in need of a name...)

[street1]

The Cat IN A Box -By DR. parismouton Seuss.

That whine it is a whine I hear and not a dog or not a deer.

No ,I do not hear a dog or dear maybe a cat is very near.

But, cats don't live in little boxes only boogs and ragatoxics.

Surely,Surely it's a cat but, electronic ?think of that..............

[xpuser357]

The Cat IN A Box -By DR. parismouton Seuss.

That whine it is a whine I hear and not a dog or not a deer.

No ,I do not hear a dog or dear maybe a cat is very near.

But, cats don't live in little boxes only boogs and ragatoxics.

Surely,Surely it's a cat but, electronic ?think of that..............

Shoot um up Rhyming Simon excellent job.

[Gabriel]

Does this help: I turned off the PC, all fans stopped, the noise continued, I unplugged the PC, the noise continued...

This might be something you overlooked - Have you tried Disconnecting the Display? - I have quite few Screens in my lab that do High pitch (The pitch varies on what is displayed on the screen).


Cheer,
Gabriel

[ClickHere2Surf.com]

I have an LCD screen but the sound is clearly from within the PC.

I just though of this, I just bought a humidifier a few days ago to bring the humidity from 20% to 60%, could this have something to do with it?

[parismouton]

[Gabriel]

I just though of this, I just bought a humidifier a few days ago to bring the humidity from 20% to 60%, could this have something to do with it?

Humidity certainly does not make your computer (or any electronic equipment) work better.
I usually try to lower the Humidity - why have you put such a device?


Gabriel

[Platypus]

Some people's hearing is unusually extended at the high frequency end (women usually have the best high frequency hearing), and they can find the whistle from switching power supplies very irritating. It's difficult to pinpoint the exact source of high frequency sounds.

I had a Gigabyte motherboard with "twitters" in the CPU regulators that were dependent on CPU activity. If the source can be positively identified as the PSU itself, then there have been some known whistling or squealing problems from active PFC (power factor correction) units, even in quality brands.

I turned off the PC, all fans stopped, the noise continued, I unplugged the PC, the noise continued, I pressed the power button with the PC still unplugged to drain all remaining power and the noise stopped.

That suggests the whistle may be from the PSU's standby 5V supply, rather than active PFC, which will not be operating when the mains is unplugged.

The standby supply will be operating while the PSU is in "soft-off" mode, and will continue to run for a while after the power is disconnected, while the reservoir capacitors hold charge. If you press the power button to give the PSU a start signal, the capacitors will be discharged immediately and the whistle will therefore stop.

If it is the standby, there may be a minor fault, such as an improperly potted coil or component off value, or the standby supply may simply be designed to run at a frequency you can hear eg 18KHz, in which case a different PSU would be the only solution.

[street1]

I did research on the Antec SmartPower and it is a highly recommended PSU.


http://www.jscustompcs.com/power_supply/

The above site gives you a self test for power supply requirements.The more you max out your PSU..........it works hard and whines alot.Just like a man.


The GPU Fan

In my opinion, the fan on a video card is the single most obnoxious sound generator in the entire computer. These fans are often very small and thin and operating at insanely high RPMs, so instead of a whirrrr or a whooshh it's a high pitched whining squealy noise that makes ears bleed and dogs bark.

[ClickHere2Surf.com]

Humidity certainly does not make your computer (or any electronic equipment) work better.
I usually try to lower the Humidity - why have you put such a device?


Gabriel

Why? Because low humidity damages your health, which cannot be replaced. Humidity must be at 40-60% to be healthy. Electronics can be replaced, our health cannot.

[parismouton]

hmmm, relative humidity is predicted to be 38% here tomorrow.

i had best go sort out something for me and the cat (who still needs a name).

[gazzak]

Other than posting theory's here have you actually tried any of the advice the thread has thrown up? Have you tried the monitor, the psu, the MOBO coils, Nero???

[street1]

Other than posting theory's here have you actually tried any of the advice the thread has thrown up? Have you tried the monitor, the psu, the MOBO coils, Nero???

gazzak-I just didn't know how to post a reply in the form of a question.

By Golly! You did it.