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AnsweredAfterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming

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nasexiro
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2020/10/16 03:42:16 (permalink)
Hi, i used Afterburner software in all my graphics cards. When i received the card i undervolted it and worked like a charm, 850mV with memory frequency at 1800mhz always locked.
After the upgrade that made EVGA Precision software of the bios, now it doesn't work anymore.
When i change the settings on afterburne, the card shows the same numbers always.
This is an error of the new bios? Anyone who have the same card can do a little test on it?
 
Thanks in advance. Sorry for my english :P 
 
As you can see in the picture, the curve is applied but nothing happens...
 
 
 
post edited by nasexiro - 2020/10/16 03:49:46

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Cool GTX
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Re: Afterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming 2020/10/16 07:27:44 (permalink)
Welcome to the EVGA Forums
 
 
AB displays 9501 MHz for the RAM - are you saying it was previously displaying 1800 MHz ?
 
 
I see that at 0.806V (GPUz) your card will only show /perform max MHz of GPU @ 1575 (AB) - 1365 in GPUz ?
 
 
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nasexiro
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Re: Afterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming 2020/10/16 07:50:52 (permalink)
Hi, 1365 in gpuz fluctuates a lot when i put the curve you see at the screenshot.

I saw that 1800 at gpu clock tab in AB and the same in gpuz tab.

Rock solid 1800 but now it does nothing.
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kevinc313
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Re: Afterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming 2020/10/16 08:17:35 (permalink)
Stop undervolting.  Just use the power limit to control temps, crank the clock and voltage slider and let the card do what it wants.
 
If you want to lock clock and voltage, great do that, but don't call it undervolting.
post edited by kevinc313 - 2020/10/16 08:28:34
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Cool GTX
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Re: Afterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming 2020/10/16 08:19:17 (permalink) ☼ Best Answerby Cool GTX 2020/10/21 13:29:25
Have you done a Cold reboot of system / power flush ... unplug PC & everything connect to power from the wall (Monitor, printer, USB hub ....)
 
Wait for PC to shutdown, pull the plugs .. after about 10 seconds ... Hold the start button down 20 seconds to "drain the capacitors" ... Plug it back in & boot
 
 
Next I'd remove & reinstall AB ... cant hurt to try ... while AB is removed ... make sure you have the latest driver for your GPU, before reinstalling AB
 
When changing drivers or OC software - I like to go offline (kill network connection) Stop All background software - including security software & Install as Admin, with elevated privileges
 
 
GPUz - indicates: PerfCap Reason = Pwr as the limiting factor ... & your screen shot is showing less than 850 mV

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nasexiro
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Re: Afterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming 2020/10/16 09:18:44 (permalink)
I used DDU for drivers cleanup in Windows Safe mode, i removed AB and all related software and installed fresh drivers.
Then installed AB and didnt work.

I'l try to "drain the capacitors" like u said.
Thanks for info.
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Re: Afterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming 2020/10/16 09:26:23 (permalink)
First of all, ignore the nonsense above that says stop undervolting. Because it is 100% the way to get the most out of these cards.
 
Do you get the same results when you use something besides Furmark? All these burn tests have been no-go for quite some time. Look how low your clock is. These cards intentionally underclock when they detect these programs are running and try to "game" the system. Try using a regular benchmark.


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Satsugai7
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Re: Afterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming 2020/10/16 13:47:45 (permalink)
100% agree with the poster above. Don't use Furmark to test your card in this way. You are just going to hit the power limit artificially fast.
 
Instead use something free like Heaven in windowed mode. Press the spacebar in the benchmark to pause it on a specific scene and then tab over to Afterburner to play with your curve. Additionally, your power limit is set to 100% when you should be increasing it for the maximum overclock results.
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nasexiro
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Re: Afterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming 2020/10/18 11:40:58 (permalink)
Well, after doing "Hold the start button down 20 seconds to "drain the capacitors" ... Plug it back in & boot" i applied the curve in AB and is working perfectly!!!

Thanks to everyone!!!
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Cool GTX
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Re: Afterburner undervolting suddenly has stopped working on 3080 XC3 Ultra Gaming 2020/10/21 13:29:07 (permalink)
Happy to help, glad it is working for you

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