NBMiner developers partially bypass hashrate limitations in Nvidia LHR graphics cards

In updating the NBMiner ether mining application, the developers managed to partially bypass the restrictions on ETH mining on NVidia LHR video cards. They managed to squeeze out 68% of the maximum hash rate.

At the end of May, Nvidia began shipping video cards with the abbreviation LHR (Low Hash Rate) in their names. These cards have a limited mining performance on popular algorithms – the hash rate is reduced by an average of 50%. However, now the owners of such video cards will be able to make them work much faster. The developers of NBMiner have not yet been able to completely bypass the restrictions, but increasing the hash rate by 30% is a step forward.

The reason for the release of the LHR series of video accelerators was the shortage of gaming video cards on store shelves and a significant increase in their cost. Gamers got very few video cards, as large miners bought the supplies wholesale, even at inflated prices. This was facilitated by the significant growth of the cryptocurrency market, as a result, even expensive video cards paid off in just a few months.

Initially, Nvidia tried to limit the mining hashrate using drivers, and the miners simply installed the older version of the drivers. However, with new batches of video cards, this trick no longer works, since the restrictions are now saved at the BIOS level.

Earlier it was reported that video accelerators began to fall in price after the fall of the cryptocurrency market and the Ethereum rate. However, the decline did not become significant, and after the market turned up in July, the deficit of cards returned to almost the same levels.