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[Sardaukarama]

Since I got my 5090 (TUFF Gaming no OC)a few weeks back I've been playing around with undervolting on Afterburner and using hwinfo for monitoring so I fell down the rabbit hole and see so many different configurations that my head is spinning.
With the very knowledgable people here I thought I would seek your sage advice about a couple of questions that vary from threads I've read all over the web.
Soooo what would you guys consider a safe memory junction temp ? (For me it averages between 80 -90 celcius dependant on game..S/W Outlaws really pumps the heat out)
Now that you can overclock Memory to +3000 does it really make much of a difference ? Is there a safe limit? or a NOOOOoo do not use it that high! (I've mainly noticed it ramps up the memory junction temp)
My first is my lowest I've been running mainly for usual daily use but it handles Forza and a few others great and I know I'm getting performance loss but I have a MATX case so not much cool air to go around and I'd love to pull around 450w where possible (like I said I'm a learner to this !) I am currently playing with higher frequencys for this

Then my second I'm trying with heavy running games like Cyberpunk,Indiana Jones and Star Wars (Which crashes at 0.85 but is stable at 0.9 )and knowing my luck I've got a chip that was pulled out the trash lol


I know Im like a monkey slinging his shit at wall hoping it sticks but I'm enjoying learning this so it would be great if anyone has any curves or numbers to share on their GPU's.
The best info imo I've found so far is this reddit post and a GitHub page
Cheers

 

[Magic Carpet]

I stopped using afterburner, now use the new steam overlay, better presented and built in. It's still installed I just don't autostart anymore.
My motherboard bios handles the curves now.

Maybe a future update will have Steam, handle fan speeds. Pretty soon, Windows can take a hike.

 

[nemiroff]

I stopped using afterburner, now use the new steam overlay, better presented and built in. It's still installed I just don't autostart anymore.
My motherboard bios handles the curves now.

Maybe a future update will have Steam, handle fan speeds. Pretty soon, Windows can take a hike.

I also do my curves in the bios - for the CPU. I'm pretty sure the mb bios can't do the GPU curves

 

[Magic Carpet]

I also do my curves in the bios - for the CPU. I'm pretty sure the bios can't do the GPU curves

I just use whatever Nvidia built in fans do on their own. I can barely hear my GPU unless I'm running some stress test. or VR. For some reason VR cranks my GPU to the max and I can hear the fans running while wearing the VR headset.

 

[Thief1987]

How do you know someone owns a 5090? They'll tell you.

Works like a charm

 

[Mozart36]

I'm on 2850MHz@0.900mV. But it is not like on RTX 4000 series, where the card strictly follows the curve (in high power scenarios), so it does not mean much. With 2800MHz@0.900mV, you can have better scores than someone with 2900MHz@0.900mV, just because the internal logic of the core clock adjustments. The main thing that the curve does here is that it sets your max mV. Usually you can achieve stock card perf. level around 0.860mV-0.880mV.
As for the memory, like you mentioned, you can OC memory to +3000 on most of these cards, but again, this time, unlike on 4000 series, memory OC does not bring that much perf. benefit, so it is not really needed.

 

[iALX]

PNY XLR8 4080 Super.
Basically just +1300 on Memory and set core max to 2595MHz @ 925mV.
This dropped max load core temps from 63-66C to ~55C, but with DLSS4 Perf & FG, GPU usage is mostly ~80% in latest games at 4K 120Hz which keeps the core at 45-50C.

 

[BeardSpike]

No curves, just fancontrol on Windows .

Fan Control - A highly focused fan controlling software for Windows

Fan Control is a free software that allows the user to control their CPU, GPU and case fans using temperatures.

getfancontrol.com

It lets me control CPU fan, GPU fan and my case fans from PWM controller with fixed sliders speeds dynamically.

Although I think you can set curves there for every fan.

No need to boot to bios.

On Linux side of things I let the BIOS curves do it's thing.

And I'm using LACT to control my GPU fans at a fixed speed.

On Linux I use Mangohud to monitor temps, on Windows AMD Adrenalin Overlay.

I tried to use CoolerControl on Linux but either I'm dumb or it doesn't pick up my sensors like fancontrol does...

Might give it another go since I edited kernel boot parameters to always unlock overclocking and fan controls, it may be what was missing to fully utilise this soft.

 

[zeomax]

I stopped using the the voltage curve. It was to much tinkering to get a stable system. Instead I just reduce the power limit to 80% by only losing 1-2% performance. This way I have all the benefits by having a cooler GPU and lower power consumption but without the risks of having an instabil GPU.

 

[Gonzito]

I am not using that crap, undervolting, overclocking etc. It always create crashes, lag spikes and stuttering in games

Stay away from that shit

 

[Bojji]

I am not using that crap, undervolting, overclocking etc. It always create crashes, lag spikes and stuttering in games

Stay away from that shit

Not in my experience, once you find stability you can have stock clocks with lower power draw and fan speed.

4070ti Super. Full stability with that (2805MHz, 1.00mV) memory +999.

 

[hououinkyouma00]

I am not using that crap, undervolting, overclocking etc. It always create crashes, lag spikes and stuttering in games

Stay away from that shit

You'll get shit but I agree. I've played on PC for over 2 decades and never had a good experience.

It's also the tedious shit that I just have never liked to have to do on PC.