ZEUS MINING BLOG

What are the common procedures for repairing Antminer L3+ hash board? Common repair process 1. Routine inspection: First of all, visually inspect the hash board to be repaired to observe whether there is any displacement, deformation, or scorching of the small heat sink? If any, you must deal with it first; if the small heat sink is displaced, remove it first, wash off the original glue, and re-adhesive after the repair is passed. Secondly, after the visual inspection is no problem, the impedance of each voltage domain can be tested first to detect whether there is a short circuit or an open circuit. If found, it must be dealt with first. Thirdly, check whether the voltage of each voltage domain reaches 0.8V, and the voltage difference of each voltage domain shall not exceed 0.05V. If the voltage of a certain voltage domain is too high or too low, the circuits in the adjacent voltage domain generally have abnormal phenomena. Need to investigate the reason first. 2. After the routine te...

How to check and replace ASIC miner cooling fan and PSU cooling fan？ Miner fan or PSU fan is almost the most vulnerable component because of the continuous work of miners. High-strength and high-speed working methods can easily cause damage to its bearings and internal coils. When the fan is damaged, the miner or PSU will lose heat dissipation and cannot work or damage the chip. Therefore, regular inspection and replacement of bad fans is an essential job of maintaining miners. Both ASIC miners and GPU miners use a large number of cooling fans. Depending on the device model, the fan specifications used are also different. Normally, the most common fan sizes are: 4cm, 6cm, 12cm, 14cm. The standard voltage is 12V, the current is 0.27A to 7.2A, and the power cord is 2 to 6 pins. The specific size of the fan to be selected needs to be determined according to the device. When these fans fail, it isn't easy to detect from the appearance because one piece of equipment is equipped with 2 t...

How to choose replacement chip for the Bitcoin Antminer? Since the birth of cryptocurrency, people have begun to use all kinds of equipment to mine, from the simple preference at the beginning to the later profit, and use it as a profession. From desktop computers, laptops, tablets, mobile phones, GPUs to professional ASIC miners, people have been trying more efficient mining methods. Finally, GPU miners and ASIC miners have become the main tools for mining cryptocurrencies with highly high hash rates and energy consumption ratios. Among them, ASIC miners have a share of about 70%. It is a huge market, including manufacturers, sellers, miners, and maintenance personnel. The ASIC miner concentrates a large number of ASIC chips on a circuit board. Its name is "Hash Board." Depending on the model, a hash Board will load dozens of ASIC chips. They are similar to those of a computer. The CPU is responsible for calculating the hash value in the blockchain. A mining machine usually ...

How to use antminer repair kits to repair antminer hash board? At present, there are practitioners engaged in cryptocurrency mining all over the world, including large farms, scattered individuals, and team-based farms. In all mining forms, ASIC miners account for a large proportion. ASIC miners will generate high temperatures during long-term operation, while ASIC chips will gradually age in high-temperature environments, reduce performance, and fail to start. At this time, we must replace the damaged chip in the hash board. Usually, there are dozens of ASIC chips in a hash board, and only 1-2, or 2-3 of them may be damaged. Then, how to accurately find these damaged chips has become a common problem encountered by repairers. In 2017, people almost all used oscilloscopes to find these bad chips, but for beginners, the use of oscilloscopes undoubtedly increased the difficulty of learning to repair. Because of this, the miner manufacturer has developed a professional Hash board testing ...

How to use Antminer BM1387 tin tool to replace damaged chips? In the repair work of the h ash board, the most common problem is to replace the ASIC chip, which  is the most easily damaged part of the h ash board. In this article, I will use A ntminer as an example to show my friends how to use Antminer BM1387  tin tools to replace damaged chips?  Although there are many chip models, most of the pin positions and sizes are the same. ASIC chips are usually small in size and the pins are arranged closely, which brings great difficulty to maintenance and replacement. Because when replacing a new ASIC chip, it is necessary to accurately apply solder paste on each tiny pin, then heat it to melt, and finally fix it on the h ash board. For how to solve this problem, after various attempts, we finally chose a convenient and efficient way: making professional tin tools (ASIC tin tools). Its principle is to fix the chip on the base, then use a special steel mesh to align the pins of...

Antminer APW9 and APW9+ Power Supply Repair Guide Apw9 Apw9+ is a high-power PSU with 2 single-phase AC inputs and 2   DC outputs. 1: 14.5v-21v voltage adjustable output, maximum current 170A 2: 12v voltage fixed output, maximum current 12A The circuit board layout is mainly divided into: 1A - The first AC input and EMI circuit 1B - PFC and MOS circuit 1C - 12V auxiliary circuit and VCC circuit 2A -  2nd AC input and EMI circuit 2B - PFC and MOS circuit 2C - 12V auxiliary circuit and VCC circuit 2D - 12V output port and PIC communication port   The vulnerable parts of PSU are: fuse, MOS, rectifier bridge A more detailed circuit diagram is provided in the document for  Reference See more details here  Antminer manuals and repair guide

Antminer S9 profitability Now, Cause of Antminer s9 hash rate when we use it to mining SHA-256 cryptocurrency the profit is getting very low, but if your electricity cost is very cheap, I think this miner is your best choice for mining bitcoin. S9 here is a series including S9 S9K S9J S9se etc. but even them the profit is low too, but as I said the electricity cost and this ASIC miner price is the thing you need to consider this miner suitable us or not. How to get Antminer s9 warranty service and repair parts For now, the Bitmain company stops maintenance of Antminer s9 series miners, but this is not a major thing because you can purchase the ASIC miner parts and repair service and tools from us or other places. About Antminer s9 overclock firmware program So, we have the cheap electricity bill and repair warranty now. what do we do for now? the overclock firmware! You can buy it or download it for free. The most important thing is don’t be hacked. Many download firmware program...