EVGA GTX780 Coil Whine

[dr no]

Can anyone advise a better PSU than the Seasonic Platinum 860W to remove the Coil whine with my card?

I had Coil whine infrequently with 3DMark11. Overclockers were great with replacing my new Seasonic P860W. But the replacement now whines more, still infrequently, but with Valley this time and no 3DMark11.

I am blaming the PSU as my old Seasonic X560W didn't whine.

I've always used Seasonic so unsure as to try a third time, leave with it, or change to another brand?

Set up: i7-4770K, 16gb G.Skill Trident X, Asus Z87 Pro, EVGA GTX780 ACX and Seasonic Platinum 860W

 

[dr no]

Anyone?

Also can anyone advise the difference btween the GPU coil whine and the fan noises some of the ACX cards have. Difficult to tell on videos.

 

[dr no]

Thank you for the replies
I plan on trying the manual fan speed control later this week.
I also plan to change the card to see if that resolves it.
If not I'll have change the PSU again.
Might need to move from Seasonic to another brand maybe?

 

[dr no]

Try this

http://youtu.be/gJBurs_32GI

http://youtu.be/gpGIZBl3rWc

It is infrequent and lasts seconds or repeated screeching.
The above happened at the end of Valley and last a good 10-15 seconds

 

[dr no]

The mic is on the camera/phone stick it near the source of the noise, dont keep moving it

That Rattling is a fan clipping a shroud
But take the case cover off and get a better recording

oddly enough it doesn't make that sound as often with the lid off.
But I'll try get better recording

 

[dr no]

There is your answer, the cover is pushing a wire or something into a fan

The Key evidence was overlooked !

Post a couple of pictures with the covers off and we will narrow it down.

There are no wires near the GPU either side.
I am thinking either Coil whine or Fan noises with the ACX cans as some others have reported on EVGA forum.
It could be repeated at the end of 3DMark11 first test with first PSU or towards the end of Valley with the second PSU. Oddly enough since change of PSU it happens more with Valley now and hardly with 3DMark11 anymore. Most commonly, infrequent and unpredictable as it is, it happens at the end of the Valley benchmark cycle where the results page shows.

I've listened to Coil whine and mine sounds louder and more screechy I think.
And with the lid off it is harder to demonstrate although it does happen. If it is the fan noise at certain rpms/temps then that would explain it as temps wouldn't reach as high.

 

[dr no]

If its coil whine changing psu will not help... trust me. Don't waste anymore time or money buying new power supplies.


If its coming from the fans then I've read some complaints on the evga forum about some issue at a certain percentage with the ACX cooler. Test all fan speed % in evga precision to check if this is the cause.

I have a new card coming to replace the current one. I suppose that will help a lot to diagnose cause. But I will be manually revving the fans to see if I can repeat sound at will.

 

[dr no]

Heres my build

PSU is the hybrid Seasonic Platinum 860W
I use in Hybrid mode. So, yes to your question

 

[dr no]

Looked at a few of the pictures, I can only see a ribbon cable across the PSU Fan, tell you what though, I don't think that ACX cooler was the best choice for that little case, it's all going to get very hot in there.

Just post that video with the top off, coil whine is not going to be so temperature linked..Fan noise is !

I can confirm that the sound is heard at 78% fan speed. Seen with Precision X on screen display fan speed percentage running Valley. Anything below and above no sound.

I tried to replicate manually. Got close to something resembling the sound at 77/78%. Not exact but close. I suspect in actual function the sound is illicit when the fan passes through 78% either way.

So the fan noise it is!

P.S. I chose the ACX as it was the best performing. Didn't think much beyond that TBH

 

[dr no]

Lol!
This is my first dabble with building and so started with what I had.
Lessons being learnt all over the shop

 

[dr no]

Good man, We all started somewhere and made mistakes, the ones that don't have much money and run flaky old second hand kit really learn, especially with no money to replace stuff having to mend it at component level. The downside is it leaves a wound that starts hurting when you see lovely new kit being mistreated


Ok, I have a suggestion, Take all the overclocks off everything (and never use cpu auto overclocking, they just stupidly over volt the cpu) learn how to use the - voltage offset to actually undervolt that Haswell, you should even be able to get a small stable overclock at less than stock voltage
You obviously have precisionX, slide the power target and temp to minimum, again balancing temp and clock sliders will give you stock performance at lower voltage.
Even if you end up with everything under clocked you will still have more than enough power to do anything with that system, I think you will be surprised how little you loose performance wise but the heat reduction is massive. It goes without saying if you can get some more fans in that case do that also.
Personally I would keep at it until loaded temps never exceeded 70c on the GPU.
Forgot, that PSU would be a major cooling asset for that little case if it didn't have a "dumb " fan, If you cant get the fan to run continuously, replace it with a cheaper unit, 450Watt would be fine (you may want haswell compatible) although personally I'd take a chance and just use S3 standby.

Have fun

After much tinkering I have settled on stock for CPU with some overclock on GPU.
I've played with fan profiles and added extra fans blowing onto the GPU and added vented PCI slot covers.

The PSU is fairly new model, is Haswell compatible and has a switch to change from Hybrid to normal mode which keeps fan on all the time.

Currently my GPU under load reaches an average of 69-72'C when benchmarking. CPU reaches about 68'C under benchmarking loads too.

I've tried undervolting to reduce temps but although the CPU copes really well the temps are negligible so I've just left it at stock.

Set up works better than it looks I think

 

[dr no]

Looking half reasonable there You have shocked me

Haswell has very poor heat path from the Die to the heatspreader so I would have thought the improvement would be massive, make sure you run CPUZ and check nothing is overriding your voltage offset under load.

What's the model of that PSU ? sounds good.

Seasonic Platinum 860W

 

[dr no]

Seasonic are great PSU's, but the cables they give you are ugly.

The cables with my old pSU X560W are excellent braided ones.
The Platinum series are horrible black ribbon ones. Only the ATX cable is braided