PSU opinion for a gtx 780

stefandragos · Feb 20, 2014

Hey! I picked up a palit gtx 780 super jetstream

and have an annoying coil whine while i play less demanding games such as fifa 13(in crysis 3 when the gpu usage is 100% it's quiet).
My current psu is nexus rx 6300 630w and i was wandering if changing it woud stop the "whine"?
The rest of the system is i7 4770k stock speed and cooler, 8gb kingston beast 1866 mhz, msi z87 g45 gaming, samsung 500gb sata2 hdd, antec 300 case with 4x120 fans.

d00mdragon · Feb 20, 2014

Are you sure it is the psu? it might be a fan on something else or the fan on the psu. If the psu was the issue, at least as far as providing good power, you would see the computer crashing a lot and the maybe even the blue screen of death. I would try and see where the noise is coming from.

stefandragos · Feb 20, 2014

i have no issues with the rig besides the coil whine and it "magically" goes away if i activate v-sync... i'm just wandering if, by any chance the psu is not delivering "quality" power, a change would stop the noise(actualy that's what is witten on my psu lol "stop the noise"

) )

d00mdragon · Feb 20, 2014

stefandragos :

when did you buy it?

stefandragos · Feb 20, 2014

The psu in march 2010 and the rest of the component part from the hdd, this month. Do you think the psu is getting old?

stefandragos · Feb 20, 2014

Would the "Seasonic M12II-620 Bronze EVO Edition" be enough for my system and some air oc for the cpu? or should i go for the 750w version?
Another option for my budget would be a "Super Flower Golden Green PRO 750W" which is between the above as far as pricing goes.

davcon · Feb 20, 2014

stefandragos :

It's your gpu that has the coil whine.
What you're describing is a well known common problem.
You solved the problem by enabling v-sync.
http://www.youtube.com/watch?v=HP73edpQwgc

stefandragos · Feb 20, 2014

that is the "song".... should i try and replace the gpu? or could the psu be part of the problem?

ko888 · Feb 20, 2014

Try a different PSU first.

Sometimes it's the interaction between a specific graphics card model and specific PSU model that causes the coil whine. Some have reported that changing the PSU brand and model solved their problem.

davcon · Feb 20, 2014

As Linus stated you could try replacing the psu but there is no guarantee it will get better.
It could get worse as a matter of fact.
The problem originates with the gpu and the psu can amplify the whine.
Also the mobo plays a part in this.
I've never experienced this problem personally,but I know it would drive me crazy.
I've read a review of your psu and it's a good unit.
Seems to me it's an older unit.
If so,it might not be a bad investment to upgrade to higher quality unit.

stefandragos · Feb 20, 2014

Seasonic M12II-620 Bronze EVO Edition 620W ~109$ modular 5 years warranty
Super Flower Golden Green PRO Gold 650W ~108$ not modular 3 years warranty
Corsair CS650M Gold 650W ~118$ modular 3 years warranty
Seasonic M12II Bronze 650W ~120$ modular 5 years warranty
Super Flower Golden Green PRO Gold 750W ~ 127$ not modular 3 years warranty

What to pick from above?

L.E. @davcon & @ ko888 that is what i'm thinking

and if it doesn't change the situation (the PSU change) then i will try and rma the gpu and see if i get a better card(although is a fine sample with 30 celsius in idle and 71 in full load and does run quiet either way)

davcon · Feb 20, 2014

Either Seasonic unit would be fine.

stefandragos · Feb 20, 2014

for some OC(on the CPU) will it be enough? 620 or 650w?
I forgot to mention..i do have a thermalright macho hr 02 for overclocking purpose but for now it's resting

davcon · Feb 20, 2014

stefandragos :

Go with the Seasonic 650 and yes it will be fine for your specs.
i7-3960X Extreme Edition overclocked to 4.60 GHz
http://www.guru3d.com/articles_pages/palit_geforce_gtx_780_super_jetstream_review,7.html
Here is Guru3D's power supply recommendation:
•GeForce GTX 780 - On your average system the card requires you to have a 550 Watt power supply unit.
•GeForce GTX 780 2-way SLI - On your average system the cards require you to have a 800 Watt power supply unit as minimum.
•GeForce GTX 780 3-way SLI - On your average system the cards require you to have a 1200 Watt power supply unit as minimum.

ko888 · Feb 20, 2014

As long as the PSU has a maximum combined +12 Volt continuous current rating of 37 Amps or greater and has at least one 6-pin and one 8-pin PCI Express supplementary power connectors it should be sufficient.

davcon · Feb 20, 2014

ko888 :

^+1 Well put!

stefandragos · Feb 22, 2014

What do you guys think about "In Win Commander II Bronze 850W"? i could pick it up for 120$

ko888 · Feb 22, 2014

stefandragos :

The OEM being Andyson turns me off it right away. It also has a weaker combined +12V current rating (i.e. 61 Amps) than a high quality PSU (i.e. 70 Amps).

A top tier XFX ProSeries 850W Modular Edition (Bronze) - (P1-850X-XXB9) that is made by Seasonic is only about $5 more depending upon if this brand and model are available where you live.

stefandragos · Feb 22, 2014

I don't have xfx in my country and i am kinda decided to buy the 750 evo from seasonic.
The 620 evo doesn't have support for haswell c state and i would like to have some headroom for oc and future.
The 650 bronze from seasonic suports haswell c state but has a noisy fan from what i've read.
From corsair i was temted to buy the cs650m but Great Wall oem doesn't sound better than Andyson

) I does have haswell support. Also RM650 but for the same cash i can get the Seasonic 750 evo.
How about it?

ko888 · Feb 22, 2014

Where did you get the idea that the M12II Evo Edition-620Bronze (SS-620GM2 Active PFC) doesn't support Haswell's C6/C7 power states?

On the lower right corner of this image from Seasonic it states "Intel Haswell Processor READY":

stefandragos · Feb 22, 2014

http://www.seasonic.com/new/twevent20130510.htm from here...
The question is where did you get that image?

Also i double checked and the one who does the singing(coil whine) in my case is the PSU...

i guess it really time to change it.

ko888 · Feb 22, 2014

stefandragos :

The EVO Edition doesn't even appear on the link you provided most likely because the EVO Edition was released after that list was created.

From Seasonic's website.

http://www.seasonicusa.com/M12-EVO-Edition.htm

stefandragos · Feb 22, 2014

in that picture one can asume that all three models are intel haswell certified but if you look here http://www.seasonic.com/product/pc_retail.jsp
is says that it only the 750 and 850 evo are certified.... the 520 and 620 are not

ko888 · Feb 22, 2014

stefandragos :

It all depends on which Seasonic world region website you look at. They're not all consistent or up to date.

stefandragos · Feb 22, 2014

i don't know what to think... if i wish to buy the 620 evo i have to problems:
1) does it support the c6,c7 state from haswell
2) can it provide enough power if i want to overclock my cpu to a 4,4-4,6 ghz?

PSU opinion for a gtx 780

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