Stickboy46

s1ddok
[Extreme noob in town please show some mercy] 
 
Hi!
 
I bought myself a 3090 FTW3 Ultra for deep learning purposes. I've already managed to train a couple of networks under WSL2 on my Windows 10 machine. I know FTW3 Ultra cards are capable of doing overclocking. I would love to squeeze some juice from the card if possible but don't want to enter instability or hardware degradation territory. 
 
Can somebody point me on what should I do for this and where are the boundaries? Do I need to install OC BIOS on the card for this? Or the built-in one will cover my needs? From threads in the internet it seems like general OC range is +400 memory and +100 in clock. Is it true? Or is it possible to go higher? 
 
Currently, `nvidia-smi` shows 78C on average and power consumption is around 375W. Card is being loaded for 100% for about 76 hours straight.

I dont' think anyone will be able to answer this.  Every card (even the exact model) will overclock differently. That's what's called the silicon lottery.  What is stable for one card, will crash on another.  The only way to find out is to test yourself.  Also the TYPE of load will often cause you to adjust.  Benchmarks normally allow you to OC more, but then if you try to game playing on those same setting, you will often get a crash. Even different types of games will cause crashes.
 
For instance, my FTW3 Ultra will do +175 in Port Royal.
I have to back that off to 100-125 for most gaming.
I had to back it off to 50 last night to play Cyberpunk without crashing.
 
So you will just have to do your own testing.  100 is probably a pretty safe bet to start. 78C Is a little on the high end so you might look to see if you can improve airflow or adjust the fan curve.  Mine will sit at 66-69 in most full load gaming scenarios.  

s1ddok

Stickboy46

s1ddok
[Extreme noob in town please show some mercy] 
 
Hi!
 
I bought myself a 3090 FTW3 Ultra for deep learning purposes. I've already managed to train a couple of networks under WSL2 on my Windows 10 machine. I know FTW3 Ultra cards are capable of doing overclocking. I would love to squeeze some juice from the card if possible but don't want to enter instability or hardware degradation territory. 
 
Can somebody point me on what should I do for this and where are the boundaries? Do I need to install OC BIOS on the card for this? Or the built-in one will cover my needs? From threads in the internet it seems like general OC range is +400 memory and +100 in clock. Is it true? Or is it possible to go higher? 
 
Currently, `nvidia-smi` shows 78C on average and power consumption is around 375W. Card is being loaded for 100% for about 76 hours straight.

I dont' think anyone will be able to answer this.  Every card (even the exact model) will overclock differently. That's what's called the silicon lottery.  What is stable for one card, will crash on another.  The only way to find out is to test yourself.  Also the TYPE of load will often cause you to adjust.  Benchmarks normally allow you to OC more, but then if you try to game playing on those same setting, you will often get a crash. Even different types of games will cause crashes.
 
For instance, my FTW3 Ultra will do +175 in Port Royal.
I have to back that off to 100-125 for most gaming.
I had to back it off to 50 last night to play Cyberpunk without crashing.
 
So you will just have to do your own testing.  100 is probably a pretty safe bet to start. 78C Is a little on the high end so you might look to see if you can improve airflow or adjust the fan curve.  Mine will sit at 66-69 in most full load gaming scenarios.  

Thanks for your answer! Do I understand correctly that if we are talking about stable overclocking than that special OC bios is definitely out of discussion?

s1ddok
Just for the record. I've managed to do +400 for memory and +200 on clock speed, while putting fan speeds at 90%. Training seem to be working pretty stable and temperature is about 73C, still higher than folks suggest here but I'm afraid 100% fans can be dangerous