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**Solder Boy** · 12-23-2009, 09:54 AM

Re: Angry capacitors/transformers! ):

Hmmm never heard of a mobo squealing before, to the best of my knowledge the only thing on a mobo that would do that is either the case fan or the CPU fan. Could also be the fan inside the power supply. If it's inside the PSU, don't let it run very long or you'll get heat buildup and it will quit working.

Bad caps don't squeal, they work or they don't work

**370forlife** · 12-23-2009, 09:55 AM

Re: Angry capacitors/transformers! ):

From what I could tell on the newegg pictures I brought up is that this is board is completely covered with nichicon solid caps. Nichicon is a very reliable company, as well as solids being very reliable. I would definitely not suspect the caps.

As long as it's under warranty exchange it for another one if you want to risk it, or exchange it for a different board.

Also, what power supply are you using. You might be hearing whining from that.

**ratdude747** · 12-23-2009, 10:01 AM

Re: Angry capacitors/transformers! ):

yeah, whine is usually a power supply thing.

**willawake** · 12-23-2009, 10:15 AM

Re: Angry capacitors/transformers! ):

in bios try disable CPU Enhanced Halt (C1E) and enable C3/C6/C7 State Support

CPU EIST Function: It manage the CPU frequency and its voltage defending on the amount of workload and utilization.
C3/C6/C7 State Support: it lowers the CPU voltage when idle

maybe just disable C1E will do it

**Pupugi** · 12-23-2009, 10:24 AM

Re: Angry capacitors/transformers! ):

Hi, thanks the reply everyone.

full system specs are as follows;

Graphics Card HD5770
Hard Drive Performance 7200RPM Options
Memory Corsair XMS3 6GB (3x2GB) DDR3 PC3-12800C9 (1600MHz) Tri-Channel
Motherboard Gigabyte EX58-UD3R Intel X58 (Socket 1366) PCI-Express DDR3 Motherboard

Optical Drive LG GH22NS30 22x DVDÂ±RW SATA Dual Layer ReWriter
Power Supply Corsair TX 650W ATX2.2 SLI Compliant PSU
Processor Intel Core i7 920 2.66Ghz D0 Overclocked to 3.40GHz!
Processor Cooler Akasa AK-967 Nero Direct Contact Heatpipe CPU Cooler

The squeels from what i can tell and have also been told are coming from the motherboard. ive changed the PSU over to an old one i have used, and the squeels still persist. the HDD has also bee replaced by the company.

The "cap squeels" change in frequencey and volume as the system works, for example i ran an adaware scan and the squeels went nuts, different frequences and volumes etc of the noise.

As i was told over the phone the company i had brought my rig from have been given a faulty batch by gigabyte, which again makes me belive its the motherboard.

Im going to have another check and see if i can locate a better area where the squeel is coming from.

Thanks for the help guys!

**ratdude747** · 12-23-2009, 10:29 AM

Re: Angry capacitors/transformers! ):

could be a bad solder joint in the vrm (caps near psu)

unplug your speakers. i once had static pickup on a sound card do that as well.

**Pupugi** · 12-23-2009, 10:43 AM

Re: Angry capacitors/transformers! ):

Hi rat dude, thanks for the tip, unplugged the speakers and no change.

Ive just had the case open and a toilet roll tube to my ear and im pretty certain its coming from the area where the processor is located, the sound is more noticable if i listen from the other side (underneath the mobo). so im assuming its not the actual fan, and either the processor or components around it on the board.

Cheers

**370forlife** · 12-23-2009, 10:46 AM

Re: Angry capacitors/transformers! ):

Put your ear against the rear of the psu. Some corsairs are notorious for squealing, especially changing under load like that. You may be hearing it by the cpu because the noise is coming out from the fan grill too.

But also try what willawake was suggesting, as that was one of corsairs recommended fixes.

**Pupugi** · 12-23-2009, 11:25 AM

Re: Angry capacitors/transformers! ):

back again! woosh~

Just disabled C1E within bios, the squeeling has allmost vanished, and it appears it was the PSU making the noise, which i noticed far more when i listed at the rear of the PSU.

I havent yet enabled C3/6/7

As quoted above C3,6 and 7 alters the volts when idle

what exactly does C1E entail? am i right in assuming its giving the CPU as much power as it needs? as CPUID is on a constant 151.36w reading.

Since this (so far) seems to have stopped the squeeling, would those squeels from before had the oppertunity to damage anything?.

If this has indeed fixed my woes, would you recomend me to still send it back for replacement?.

ill update this post once i have tested with the other mode in bio enabled.

again thanks for the help thus far

**370forlife** · 12-23-2009, 11:34 AM

Re: Angry capacitors/transformers! ):

If it is indeed coming from the psu, no it does not damage anything. This is just coil whine, it is really more or less a defective psu on corsair's part. It dosen't effect performance or cause any damage, just annoying.

If it really annoys you alot (if it is still there, if not don't worry about it), just replace the corsair with another reputable brand. Corsair makes some extremely good power supplies, just a lot of people have been having this problem lately.

**Pupugi** · 12-23-2009, 11:55 AM

Re: Angry capacitors/transformers! ):

Ah, that makes alot of sense, thanks for the info!

I have emailed the e-retailer ive brought it from and told them.

However one thing slightly bugs me...if it is indeed a PSU issue...Im still slightly in the dark about the squeel staying when i swapped PSUs over in attempt to bread board the squeels out..

The psu i replaced it with was the same make only 750w. and the squeels still persisted. but those same squeels did not occur when i put the 750q old PSU back into my older system.

Is this a feature the PSU has with the new i7/ddr3 boards regarding power saving and consumption? hence my no squeels were apprant on my old ddr2 system?

Again, thanks for everyones help, you have been a great help

**Pupugi** · 12-23-2009, 01:52 PM

Re: Angry capacitors/transformers! ):

^Edit (Cant find the edit button!)

After playing a little left for dead 2 it seems the "squeel" has come back its not as high pitch this time with the advice from above, however its still there..

doesnt seem like im going to fix it, only other possibilites i can think of is faulty components on either the mobo or PSU.

**370forlife** · 12-23-2009, 02:21 PM

Re: Angry capacitors/transformers! ):

Both psu's were corsair, then they are probably affected by the same problem. Common on corsair psu's. The older system probably didn't squel with it due to just different power requirements.

http://www.youtube.com/watch?v=C4d23F2jehQ

That what you are experiencing? (notice it is a corsair)

**Pupugi** · 12-23-2009, 02:56 PM

Re: Angry capacitors/transformers! ):

i actually searched that 30 minutes or so ago..

it is very simliar, however its not a constant squeel like what that guy had.

Im guessing the actual sound changes as the power increases and decreases under load or idle etc.

while my PC is idle (Sitting on desktop) theres no noise at all, the best way ive found to get the squeel is to run a adaware scan or defrag, and the squeel seems to sing to me...

It is rather worrying..even more so after i had taken the steps mentioned above within bios, allthough they did seem to make quieten them a tad. Noticed the squeel again after about 30 minutes of playing left for dead 2, and it wasnt as high pitch but was still very noticeable..

Thanks!

**370forlife** · 12-23-2009, 06:14 PM

Re: Angry capacitors/transformers! ):

The best course of action is to risk getting another corsair psu that may have the same problem, or return it for a comparable psu from a reputable brand.

**PCBONEZ** · 12-23-2009, 07:12 PM

Re: Angry capacitors/transformers! ):

Looks like you found the problem.
-
Motherboards can squeal though.
"Singing MOSFETS" or a lose Toroid winding can do it.

**momaka** · 12-23-2009, 10:46 PM

Re: Angry capacitors/transformers! ):

Is the computer running fine and not crashing? If it is then just ignore the noise (and if you find the noise really anoying, buy headphones

- you'll likely find them much better for FPS games like L4D and CS).

**willawake** · 12-24-2009, 03:08 AM

Re: Angry capacitors/transformers! ):

you can try disable CPU EIST Function

otherwise try overclock
try another psu (from the forums seems it is difficult to find one that accommodate the i7 power features along with possibly substandard vrm of some boards)
try a different board

imho if you tried two corsair psu and two mobos what is the chance to get same models working to your satisfaction.

regarding the corsair bashing, i have corsair 550, i7 on intel DX58SO board without any probs.

but in the end i doubt this noise make any future probs

**Pupugi** · 12-24-2009, 03:49 AM

Re: Angry capacitors/transformers! ):

Other than the squeel, the pc seems to be running fine..however the squeel is just something i cannot live with, its like a permanent tinnitus.

I was looking into getting the corsair swapped out with an OCZ brand.
( http://www.overclockers.co.uk/showpr...23&subcat=1098 )

Im not quite sure what a compareable brand would be to corsair, its all i have ever known tbh..

that is assuming the sound is coming from the PSU, after a few hours of testing yesterday the sound is alot louder when lisetning to the back of the psu and around the area of where the PSU is actually located.

Any brand apart from corsair i should aim for?

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