Question RTX 4090 flickering when overclocking?!!

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Nov 10, 2022
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At stock no issues.
I tested my OC to be stable around these offsets +170 GPU to 200 GPU and memory around 1350 to 1400 offsets on my Suprim X card. No app crashing, no nvidia display driver lost.
Now i get the occasional flicker every 15 min maybe? that is super fast. and gameplay resumes like normal and it doesn't bother you much at all. It's so fast that you almost doubt if you even saw it at all.
However is this considered safe to an OC like that?

When I drop GPU offset to 0. and i keep the memory OC. the flicker still happens. also at 1350/1300/1250/1150/1000 memory offsets.
I havent tried a GPU 170+ overclock with memory 0+ ... maybe that would really isolate it to memory then.

Is this familiar behaviour to anyone? Do I just have bad memory possibly on my 4090? Eventhough it seems stable. and actual FPS DOES increase, when the memory is pushed a bit.

I apply with afterburner.
 
If you have nothing useful to add to this topic (in regards as to finding out the exact cause of the overclock) i'd appreciate it. All ThE DoNt OvERclOcK yOuR 4090 are annoying and detracting to the issue i opened this topic for.
And not just say "it's unstable" too simplistics answers. What is unstable in this exact manner of behaviour im experiencing?

I think I found something interesting today. I seem to get NO flickering when I overclock my GPU and or either or memory at the same time. when I put the core voltageMV at the default 0.... (with PL still set at 108 as i have before)...

Wouldn't this indicate the flickering is because of some boosting algorithm or somehow power related maybe? Eventhough the game i test with doesn't seem to use 450W or 400W most of the time even.

you saw the flickering that's mean you're pushing the shaders/memory beyond it's capability to produce stable graphic. if you still want to overclock then just do a modest one like just put the GPU at +100 and be satisfied with it. as someone said in the post above: you did not win the silicon lottery. personally i never found overclocking GPU worth the hassle. it is something that i will not going to do even if overclocking can get me stable 60FPS vs 53-55FPS. rather than overclocking i will lock the game at 30FPS instead for consistency.
 
Thats not what im saying Faalin. What im talking about is what is typical or atypical behaviour for that matter, that could be attributed to flickering in specificity in regards to an overclocking component. Is it more related to one component of the overclocking or could it be anything?Based on the experiences themselves have had, with them also having flickering.
Like I pointed out the issue starts happening with either core voltage added and power limit, as i've slowly found out myself. So what does that tell that it is caused by this specific scenario?

What's stopping you to understand that voltage and power are two main factors that if set not as ideal, can lead to instability? not just gpu, but DIMM and CPU too.

To simplify this, try to add 0.1-0.2 v to all variables related to voltage of your RAM, Memory Controller, CPU whatever you can increase, and see how your system will turn unstable. haha

To explain this situation? You need to ask someone who actually gets paid to solve this sort of problem, such as PC technician or someone from the GPU manufacturer. People that have time to voluntarily share their opinions on forum like this, often, not smart enough to solve a situation like yours, or a deeper, complex problem like what you are trying to explain here. Else we'd be busy doing something better than coming here to deal with nonsense like this LOL

That's just the reality. You could afford that 4090, I suggest you save your time and contact manufacturer, explain your issue to them.
 
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you saw the flickering that's mean you're pushing the shaders/memory beyond it's capability to produce stable graphic. if you still want to overclock then just do a modest one like just put the GPU at +100 and be satisfied with it. as someone said in the post above: you did not win the silicon lottery. personally i never found overclocking GPU worth the hassle. it is something that i will not going to do even if overclocking can get me stable 60FPS vs 53-55FPS. rather than overclocking i will lock the game at 30FPS instead for consistency.

Exactly. He doesn't like the posts stating the truth so he disregards them because they don't fall in line with his own opinion. GPU overclocking yields little gains as well, I'm not going to go looking into why this may be happening because it's pretty clear. Device runs fine within spec, device doesn't run fine when out of spec.

You can only draw one conclusion there.
 
unstable overclock does not always lead to driver crash. when driver crash happen nvidia usually have notification telling that the driver have crash. if the overclock fails during in game you will get a black screen for a few seconds and then the game will resume as normal but with clock returning to factory setting. both game and drier will not crash in this case.
That is true it does not always lead to driver crash, it may just lead to app crash or artefacts or reduce performance. That last scenario about a black screen i have never experienced with my RTX 4090 as my clock speeds have never returned to factory.