Longkuang 7T miner

1.

It is reported that the performance of bm1385 chip is more than twice that of bm1384

The power supply scheme of S7 is similar to that of S5. The S5 + mode of dense chip arrangement is adopted, which makes the arrangement structure more compact. Under the same space, 60 chips are placed in S5 and 162 chips are placed in S7

The price of S7 is 1823 US dollars, equivalent to 11650 RMB yuan, and the delivery time is from September 21 to September 30. At the same time, the official announced the parameters of ant mining machine S7. The chip adopts bm1385, a 28nm fully customized chip independently developed by bitcontinental, with a computing power of 4.86t and a power consumption of 1201w. Ant miner S7 is the best miner with the best power consumption ratio so far, and the power per T is about 250W

official website is not open for sale at the moment. Users of early adopters can place their orders in overseas official website. The delivery address is 17% of the Chinese mainland tax and the purchase price is 13630 yuan. p>

ant mining machine S7 specification parameters:

1. rated calculation force: 4.86 Th / S ± 5%

2. wall power consumption: 1210 watts (bit mainland apw3-1600 watt power supply, 93% AC / DC efficiency, 25 ℃ ambient temperature)

3. power efficiency: 0.25 Joule / GH (wall, 93% AC / DC efficiency, 25 ℃) ° C)

4. rated voltage: 12V ± 5%, which should not be lower than 12.0V

5. number of single power board chips: 162x bm1385

6. overall dimension: 301 mm (L) * 123 mm (W) * 155 mm (H)

7. cooling: 2 × 12038 fan

8. working temperature: 0 ℃ to 40 ℃

9. network connection: Ethernet

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for details, please see "ant S7 miner start pre sale"

2. The selection of mining machines depends on the computing power, the power consumption and the historical reputation, including the stability and after-sales service of the machines
computing power is the ability of a machine to perform operations, that is, how many hash operations can this machine perform per second. At present, the computing power of the mainstream bitcoin miner is 14T, that is, hash collisions of the 13th power of 14 times 10 per second
power consumption is an indicator of the power consumption of the miner ring operation. Electricity consumption will have a huge relationship with mining costs. Generally, a miner will operate 24 hours a day to excavate, so the power consumption sometimes seems to have a small difference, but in fact, the cost gap is relatively large
here is another little knowledge, that is, digital assets of the same algorithm can be mined by the same miner. For example, bitcoin miner can also dig bitcash, Ethereum miner can also dig Ethereum classic
for more professional knowledge, it is recommended to consult the honeycomb miner. There are professionals to help you select and answer for you. The boss comes from the fire coin, and I feel reliable after personal experience.

3. First of all, park the excavator in a flat place, and it is better to stop overnight, and then start to change the oil the next morning, but do not start the excavator. The advantage of these two points is that the waste oil can be discharged more thoroughly
to change the oil is to remove the screw from the engine oil pan and catch it with a bucket (waste oil can be sold for money). At the same time, you can remove the oil filter. After removing the general oil filter, you can install a new one. There's no need to wait. Just use a paper towel to clean the waste oil on it. It's not necessary to use too much force when installing, so as not to crack tightly. Generally, after the new filter is installed, the engine will be used for one day, and the filter will be tighter after high temperature. When you see that there is no waste oil dripping from the oil drain hole below, you can add new oil. Before adding new oil, you can also add a little to remove the remaining waste oil from the oil pan (almost all engines are difficult to drain all the waste oil at one time). But you can also add all the new oil directly
when adding new oil, you must check the dipstick while adding it, so as not to add too much oil. When you see that the oil has reached the upper end of the dipstick mark, you can generally start the engine. Remember not to use the oil filling door, let it run at a low speed for one minute, and then turn off the engine. After every 30 seconds, when you go to check the oil, the oil is generally a little less than before, Because part of the oil is in the new oil filter, you must add a little oil until the oil reaches the upper end of the dipstick mark. After changing the engine oil, remember to check if there is any oil leakage at the place you just removed. It's better to clean the engine with some water. The water is better not to face the generator and motor to avoid short circuit.

4. Why can't the onboard 1lt be put into the oil? I'm sure it can't be.

5. This coin and that coin as far away as possible does not mean that it must be fake, the risk is too high

6. Original stock + virtual currency + mining machinery, three kinds of high-risk concepts of money fraud, in addition to the liar or liar

7. Ant mining machine s9i 14T

8.

Financial data analysis refers to the analysis data of summarizing and evaluating the financial status and operating results of an enterprise, including solvency data, operating capacity data, profitability data and development capacity data

through the analysis, we can judge whether the financial situation of the enterprise is good, whether the operation and management of the enterprise is sound, and whether the business prospect of the enterprise is bright. At the same time, we can find out the crux of the operation and management of the enterprise through the analysis, and put forward the solutions to the problems. There are mainly two methods of financial statement analysis: trend analysis and ratio analysis. Trend analysis method refers to comparing the increase and decrease direction and inclination of each item in the later period according to the financial statements of several consecutive periods, so as to reveal the change and trend of Finance and operation

To do a good job in the analysis of financial statements can correctly evaluate the financial situation, operating results and cash flow of an enterprise, and reveal its future rewards and risks; It can check the completion of enterprise budget, assess the performance of management personnel, and provide help for the establishment and improvement of reasonable incentive mechanism

1, effective communication with the financial department

2, correct evaluation of the enterprise's operating performance

3, provide support for decision-makers from the financial point of view

4, understand the three major statements of the enterprise from different perspectives of the owner and the operator

5, quickly identify the possible counterfeiting elements in the financial data

6 Learn to analyze the working capital of the enterprise, examine the shortcomings of the enterprise

7. Analyze the profit level of the enterprise from the cash flow statement