ASIC miner repair guide and tutorials

Why do miners need to overclock and underclock? Why should the frequency be reduced when the market is terrible and overclock when the market is good? Why can the profit of the miner be changed through frequency modulation? Today we will talk about overclocking and underclocking of the miner. 1. What is overclocking and underclocking? Both overclocking and underclocking are relative to the normal working mode of miners. Overclocking/downclocking essentially optimizes the miner algorithm to change the miner's power consumption and hash rate. It can be understood that the miners can adjust different gears, the low hash rate gear, the normal hash rate gear, and the high hash rate gear respectively correspond to the down-frequency, normal, and over-frequency working modes. Of course, the prerequisite to achieve overclocking or frequency reduction is to have firmware that supports frequency modulation. The firmware can be understood as the operating system of the miner. The miner can ac

Collection of practical methods for noise reduction and temperature reduction for miners I believe that all friends who buy miners and mine at home have encountered a problem, noise; the noise generated by graphics card miners is not too big, and the noise generated by professional miners can reach more than 80 decibels, including Ebit E9, Antminer S9 , A3, D3, etc. Most miners use 12CM violent fans  for heat dissipation, and the fan speed can reach more than 6000 rpm. The fan blades' rapid cutting of the air produces a great noise. Take the Antminer S9 as an example: the noise can reach 95 decibels when the ambient temperature is greater than 25 degrees. In the silent night, the miners' noise can be clearly heard from 300 meters away without being blocked, and it can also be transmitted to the neighbors' ears when the door is closed in the room. To reduce the miners' noise, the vast number of miners have exerted their superhuman wisdom and produced a variety of noise r

How to calculate the residual value of miners? Where do the scrapped miners go? Perhaps the most embarrassing thing in the current market is the Antminer S9. If the price of Bitcoin rises a little bit, most of the Antminer S9 can be turned on and continue to use the waste heat; if the price continues to fall, except for the large miners who fill the load or self-built mines and have an advantage in electricity prices, most retail Antminer S9s will Shut down. After the miner is shut down and off the shelf, how much can the miner sell if you want to sell the miner? Where will the miners who have ended their economic life eventually go? 1. Residual value of ASIC miners ASIC miners’ chips  are customized and can only mine coins with fixed algorithms. For example, SHA-256 miners can only mine BTC, BCH, and BitcoinSV. The scrapping of ASIC miners  is a long process. When the mining output cannot cover their electricity expenditures, these miners flow from small miners and retail miners to la