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[Official] NVIDIA GTX 780 Ti Owner's Club - Page 819

post #8181 of 16490
Quote:
Originally Posted by VindalooJim View Post

Hello, is coil whine a common issue with the 780Ti Classy? I have just built a new rig (Red Dwarf) and I am getting a lot of coil whine from the classy.
I am trying to figure out if it is the card or if it is my PSU causing the card to have coil whine. My PSU is an AX860 which was an replacement (brand new/sealed) PSU Corsair sent me as a replacement for my AX850 that blew in my old rig.

I know the Seasonics are known for coil whine- my HX750 in the missus's rig has it too but only when the computer is turned off/ on standby. I had to disable power on by PCI-E to get rid of the HX750 coil whine.

Any ideas of what I can try to get rid of the coil whine before I RMA the Classy and/ or PSU?


EDIT: Also, while idling at desktop with no apps or programs in the background running, runs at full clock speed which ramps the fans up then it gradually clocks back down. Should I RMA?

Wait for the EVGA SuperNova G2 750/850 watts will also be way better then the AX760/860
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post #8182 of 16490
Quote:
Originally Posted by shilka View Post

Wait for the EVGA SuperNova G2 750/850 watts will also be way better then the AX760/860

Listen to him, he knows his stuff.
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post #8183 of 16490
Does that include the AX760i AX850i?
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post #8184 of 16490
Quote:
Originally Posted by Neo Zuko View Post

Does that include the AX760i AX850i?

In ripple yes in efficiency its about 1% less and less then 0,5% worse voltage regulation

But the G2/P2 are fra cheaper so yes overall AX760i/860i are a tiny better but at a much higher price

So they are not worth that much extra for such tiny amounts
Edited by shilka - 3/1/14 at 2:29pm
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post #8185 of 16490
Voltage Control for 780Tis.

Serial Interface Voltage (0xDD)

With this, you can use an offset voltage to increase voltage up to 200mv, or .02v.
For example, say your load voltage is 1.150v.. You can add a maximum of 200mv to get 1.350v. The benefit of using this is the card will drop to an idle voltage, instead of being a constant 1.350v if you were to set it in MSI AB. Any voltage other than auto set in MSI AB will be static.

If you force 1.212v under load, you will have a maxiumum of 1.4~volts

Each step is + 6.25mv.

exchange XX for one of the following.

Possible values range from 00-1F

00 = No voltage added
Note: if you set to 00, the voltage you set in MSI AB will be what you get.
For example, 1.3v set =s 1.3v. For default it adds +18.75mv, this is why it would read 1.319v normally.

00 = +0mv
03 = +18.75mv ( Default)
08 = +49.6mv
10 = + 100mv
18= + 149.6mv
1F = + 200mv (max)

Note: Offset voltage also offsets idle voltage.. But idling at 1.0v is better than 1.3v ofc.

Command is msiafterburner.exe /wi3,20,DD,XX
where XX is the value want to set from above.
post #8186 of 16490
Well i just ordered another 780 Ti, and waterblock, tri-sli here i come tongue.gif

hopefully my Ax1200i should be enough
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post #8187 of 16490
Quote:
Originally Posted by NiNoDuKEz View Post

Well i just ordered another 780 Ti, and waterblock, tri-sli here i come tongue.gif

hopefully my Ax1200i should be enough

Don't forget to post some pictures when your project is complete smile.gif
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post #8188 of 16490
Quote:
Originally Posted by Agent-A01 View Post

Voltage Control for 780Tis.

Serial Interface Voltage (0xDD)

With this, you can use an offset voltage to increase voltage up to 200mv, or .02v.
For example, say your load voltage is 1.150v.. You can add a maximum of 200mv to get 1.350v. The benefit of using this is the card will drop to an idle voltage, instead of being a constant 1.350v if you were to set it in MSI AB. Any voltage other than auto set in MSI AB will be static.

If you force 1.212v under load, you will have a maxiumum of 1.4~volts

Each step is + 6.25mv.

exchange XX for one of the following.

Possible values range from 00-1F

00 = No voltage added
Note: if you set to 00, the voltage you set in MSI AB will be what you get.
For example, 1.3v set =s 1.3v. For default it adds +18.75mv, this is why it would read 1.319v normally.

00 = +0mv
03 = +18.75mv ( Default)
08 = +49.6mv
10 = + 100mv
18= + 149.6mv
1F = + 200mv (max)

Note: Offset voltage also offsets idle voltage.. But idling at 1.0v is better than 1.3v ofc.

Command is msiafterburner.exe /wi3,20,DD,XX
where XX is the value want to set from above.

@OccamRazor, @skyn3t What do you make of this? He has also posted a detailed version in the Titan owner's club.
post #8189 of 16490
i wonder if the reference VRM and other components can handle over 1.212v
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post #8190 of 16490
can't seem to get this Msi Afterburner hack to work...
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