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NebuTech / NBMiner

GPU Miner for ETH, RVN, BEAM, CFX, ZIL, AE, ERGO
https://nbminer.com
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Is it possible to completely crack the computing power of LHR? #373

Open qin1550988682 opened 3 years ago

qin1550988682 commented 3 years ago

Is it possible to completely crack the computing power of LHR?

pdieppa commented 3 years ago

It's not impossible, it's about knowledge, time and resources that one can dedicate to this. Also, you need to consider if any laws or user agreements are being broken by the work needed to bypass the LHR function.

heliosgnosis commented 3 years ago

Well given the violation Nvidia did by a tiny news release about LHR and placed no sticker or mark on gpu's or box or any papers saying this card was broken at the factory on purpose for EThash and like algos for mining and no vendor for a long long while listed LHR in listing I would say Nvidia should GTFO because a massive lawsuit is in order, that is out right illegal and proof of conflict of interest's given they did this to boost presales and sales of their new mining only gpu line up, and these are the facts all of us who look and have been looking daily for 6-8 months for gpus knows as for why no lawyer's or news that a class action suit is about to happen to evaporate their Q1 and Q2 earning's to the negative is beyond me given it is illegal to break a product, not info the consumer not give anything to warn people this is broken garbage, all that lost revenue for anyone to which we are talking of 10s of millions have at least 1 or several and probably 100% did not know it was that given it was not until recent that such LHR models are now listed as being such even from the sources main website store for God sake. I would be all in for it just in spite of such a greedy asshole move to screw the very people who have been buying those GPUS up to laden their pockets and Quarter earnings portfolio to do this to sell us mining only GPU''s not okay or legal in most nations to which the citizen so could afford to so buy gpus. Hack it crack it attack it because they did beyond dirty is what I say and pretty sure they will not be laughing when millions sue them for 100s of millions plus interest very soon

evilpaul13 commented 3 years ago

While I agree LHR is BS, Nvidia has been artificially limiting Geforce cards in various applications since at least the Geforce 4 days.

Austin-Src commented 3 years ago

Interesting article on this topic here: https://0xbypass.weebly.com/methods-for-bypassing-the-3060-ti-lhr-mode/possible-methods-for-bypassing-the-3060-ti-lhr-mode

salmanmarvasti commented 3 years ago

NSA released decompiler tools, can they not be used to decompile the Nvidia Drivers and then rerelease an unsigned driver.

In theory any dev driver (a few that are available in the wild) should be easy to decompile, then remove the ID check or force the LHR ids to be matched to older ID. then that is it...

salmanmarvasti commented 3 years ago

So one attack - remove the ID check , the GPU should be binary compatible --- Two if that is not possible decompile the routine that does the adjustment to memory which slows mining and replace NOP instructions so the driver does not run anything to slow down the hashing.

salmanmarvasti commented 3 years ago

Maybe an open source collaboration could acomplish this, no one person has the time or the knowledge about the drivers.

salmanmarvasti commented 3 years ago

ALL LHR cards start mining at FULL rate for a few seconds before the Lower hash rate adjustment kicks in..

Austin-Src commented 3 years ago

The drivers aren't the issue, it's the BIOS loaded onto the LHR cards and the secret handshake with the GPU. Read the article above more closely to fully understand the issue.