markuaw1
 I have better results undervolting with a custom curve then just maxing out the sliders and adding + clocks have my   3090 running at 2070 MHz on .993 mV at just 64c undervolting with a custom curve i cant get that any other way 

LUL
 
I have been testing these settings you listed for about day and a half now...
 
Just now saw that you did that on a 3090, not a 3080.  Amazed I haven't crashed yet, seems stable, tested fine in Port Royal, Time Spy Extreme, Time Spy, and some gaming so far.  2070MHz @ 994mV, is the "430W" undervolt/overclock with load temps still around the same as stock, but less voltage & such, pretty neat.

staxbg
this is how the curve had to be set for 3080 in factory by Nvidia but... 

Ehm, not really. My 3080 FTW3 Ultra is stable only 1980 @ 1v. I can push 2070 @ 1.1v maximum :)

1440p. Able to pass port royal (sometimes) with +130 core and 900 memory. Got 12300 points. Not able to pass superposition 4k optimized with this settings, only stable on +105/900. On these settings Im stable at almost everything, except metro and gta v.
To be stable in metro exodus I should run +75/900 with RTX on and DLSS OFF, extreme quality.
As for undervolting - port royal is ok with 0.975 @ 2025, but almost insta crash in games. 0.962 1950 is stable, 1980 @ 1v is stable and 2050 @ 1.05 is stable in games (including metro exodus)

for someone completely new to this...I'm running Afterburner, pulling the voltage curve @ .925mV up to 1990Mhz, hitting Apply, saving profile and my fan curve is basically 40% @ 40C and a straight line up to 100% at 78C. My heaviest workload is basically a demanding game like Warzone @ 1440p, 240hz, all graphics settings a combination of low/disabled for more fps. Am I going about this right? My ambient temps in room are about 75F and my in-game temps are right around 67C.. I've gotten 2 random game crashes do I need to bump my voltage up a bit? Havent touched memory clocks
 

sstevens5
for someone completely new to this...I'm running Afterburner, pulling the voltage curve @ .925mV up to 1990Mhz, hitting Apply, saving profile and my fan curve is basically 40% @ 40C and a straight line up to 100% at 78C. My heaviest workload is basically a demanding game like Warzone @ 1440p, 240hz, all graphics settings a combination of low/disabled for more fps. Am I going about this right? My ambient temps in room are about 75F and my in-game temps are right around 67C.. I've gotten 2 random game crashes do I need to bump my voltage up a bit? Havent touched memory clocks
 

Yes you need to increase voltage to improve stability, this is basicaly test and try until you will find the sweet spot of Frequency and Voltage to keep it stable at heavy loads

I'm curious, but I don't know anything about undervolting or honestly have a grasp on much of this since I've never been great at math or physics. My interest lies in using the lowest amount of power I can and still getting as good of or close to the same performance as stock. I have a practical reason in that the wiring in my apartment building is ridiculously old, and I have blown probably over 15 fuses since I moved in. (Yes, actual fuses). Would undervolting help me limit the total amount of power I'm using with a newer, 30 series card or should I be power-limiting as discussed in the initial post?