[SOLVED] Can somebody please tell me what exactly have I done here? Undervolting question

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Noobpunk

Commendable
Jan 11, 2022
136
1
1,585
Hey all!

This is my first post so my apologies for the newbie question!

I basically want to know whether I have done the right thing or not..

So my intention is to undervolt my 3090 so I can reduce the temperatures of my GPU; especially the memory junction temperature with the intention of not overclocking anything.

On GPUZ it states
Default Clock - 1395 MHz
Boost - 1860 MHz

What I did next was I loaded up MSI Afterburner and entered -200 on the core clock and created the fan curve of 813mV 1786MHz. Here is the fan curve; https://ibb.co/gtkjRf4

I have been able to reduce temperatures and performance for now seems stable. However now looking at GPUZ it states:

GPU 1198MHz
Boost - 1663 MHz

Although when I am in game on Warzone it states my GPU Clock is 1,800 MHz.

Is everything runnin fine? Could somebody please explain why it appears this way?

Regards,
 
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Solution
There's a button on Afterburner (or Ctrl + F) that allows you to see the frequency voltage curve adjustments you've entered. That will visually show you the "stock" curve and the "new" curve.

You want to apply a positive clock offset to effectively apply an undervolt (run xxxx + 200MHz at x.xxx V)

I would also implore you to play around with the % power limit setting. I have my RTX3060Ti running at 70% power limit and reach nearly stock frequency with my +130MHz core clock offset. Roughly a 40-60W power savings
and if I continue in doing so in this matter, I should be ok? Because I am not over clocking nor am I doing anything out of its limits?
Modern video cards self-overclock anyway, if we believe that the base clock speed is the clock speed it was meant to run at. Ignoring thermal and power limits, the video card will clock itself based on the VF curve. All the clock speed slider is doing is moving the points in the VF curve up or down.
 
Modern video cards self-overclock anyway, if we believe that the base clock speed is the clock speed it was meant to run at. Ignoring thermal and power limits, the video card will clock itself based on the VF curve. All the clock speed slider is doing is moving the points in the VF curve up or down.

Please correct me if I am wrong, but what you're saying is that the GPU will clock itself based off the modified VF curve? As mentioned the highest stock clock reached was 1900MHz at 1.05V and now I am getting highest core clock being 1800MHz at 0.8V.

If I keep it this way, this normally wont cause damage to the GPU?
 
Please correct me if I am wrong, but what you're saying is that the GPU will clock itself based off the modified VF curve? As mentioned the highest stock clock reached was 1900MHz at 1.05V and now I am getting highest core clock being 1800MHz at 0.8V.

If I keep it this way, this normally wont cause damage to the GPU?
No, because if it was operating within limits at stock, going lower is going away from those limits.