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jacquesm • today at 2:32 PM • 3 replies • view on HN

This one is real, but there are some caveats:

- you will need to run your card hotter than you might be comfortable with

- the real pay-off (on some cards, apparently, see downthread) requires increasing the maximum power to 450W

- This is well above what the stock cooler was designed for so a bit more cooling would help

What's nice is that you can stack this mod on top of (or rather, below of, this one loads first) the p2p mod that has been out for a while, they don't seem to interfere with each other.


Replies

Zagitta • today at 3:31 PM

It's quite nuanced. In a nutshell the unlock just flips the 2 bits that halves how often the core can issue the specific instructions Nvidia locks to full rate on the professional and datacenter cards.

Obviously doing more compute requires more power but what it does is shift the card down on the frequency curve to keep the wattage in check. So you're right that at stock power limits it hits a cap where the full issuing rate isn't reached but it depends heavily on the exact workload how much juice is left.

The frequency curve also takes heat into account so in general you end up with a nice perf boost for a slightly hotter card.

I've been running this on my 2 3090s for a month now with no issues but they are also water cooled :-)

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Tiberium • today at 2:50 PM

> - you will need to run your card hotter than you might be comfortable with

Can you explain this one? On my GPU I didn't have to change the power limit. Obviously the card might spend more time at max power usage, but it's still within the limit.

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augment_me • today at 2:51 PM

These number claim 240W locked power draw on 4070:

https://github.com/JustAResearcher/gpu-unlock-ada/releases/t...

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