![]() Or the ASIC chips themselves can come from a sub-optimal ‘bin,’ leading to lower performance. Manufacturers occasionally issue a ‘bad batch,’ with lower-quality hardware than the following or preceding units. ![]() Unknown errors are often only revealed over time, so it’s best to have others find them out first. It’s common knowledge in Bitcoin mining not to buy the first batch of Bitcoin ASICs. Manufacturer: Another possible cause here could be the batch of units from Bitmain. Humidity and heat may be concerns due to the site’s location, but nothing miners have not handled before. ![]() Location: We first became aware of performance issues with the S19 XP series after deployment in our Texas partner facility. Non-Bitmain ASIC repair shops will have a higher difficulty in repairing ASICs due to the use of the aluminum plate, which substantially increases the difficulty of replacing malfunctioning chips.Aluminum-plated hashboards will have higher servicing needs due to increased chances of traces, chips or other parts tripping an error.Aluminum-plated hashboards will have a significantly higher failure rate in warmer temperatures than those built on printed circuit boards (PCB).Without a PIC, units will not be able to continue underhashing on one or two boards.Consolidation of all components onto one side of the board, causing increased likelihood of hashboard errors.įrom the manufacturing change above, we can identify a few possible outcomes for Bitcoin miners running newer generation units.Use of aluminum plating on one side of a hashboard, causing increased chances of units overheating.Lack of a peripheral interface controller (PIC) on units, meaning individual hashboards cannot be easily controlled.We’ve noted the following changes in Antminer ASICs: Other versions could be affected as well, including the recently announced S19J Pro+ model, due to the likely manufacturing changes the following assumes. To date, Compass Mining’s operations team has identified three issues with two versions of the Antminer S19 series miners, including the S19 90T and S19 XP. ![]() Our purpose in writing this report is to help shed light on one of the most opaque and misunderstood parts of the Bitcoin industry, ASIC manufacturing, and perhaps help increase each miner’s operation efficiency. The scope and possible repercussions of these changes are still being understood, as are the motivations behind them. Thanks to Fred Gimino for his help in writing this report.īeginning in 2022, Bitmain–the largest single designer and manufacturer of Bitcoin mining ASICs–began implementing a few production changes to various versions of its S19 series. Disclosure: The below is an open discussion into newer-generation Bitmain Antminer ASICs performed by the Compass Mining operations team. ![]()
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