How to distinguish 390x mining

1.

1. It depends on whether the core turns yellow. Some parts of the new card will turn pale yellow, but at that time, the color of the protective paint is yellow. The core yellow of the mine card is yellow and burnt yellow caused by long-time and high-frequency use of heat and oxidation

2. Check the screw fixing plate

friends who have used independent graphics cards should know that the graphics cards are fixed on the chassis by screws, while most of the large-scale mining graphics cards are fixed by plastic ties, while the self use cards will not be fixed in this way

Interface

interface refers to the output interface of the graphics card. Before purchasing, you can ask the seller about the interface for connecting the display in daily use, because mining graphics cards usually do not use the display output interface

after the interface is determined, whether the interface has been used for a long time can be judged by checking whether there is st. If there is a lot of st, it will prove that the interface has not been used at all or recently

extended data:

mine cards refer to the cards used to dig bitcoin. They are full loaded for a long time, with short service life and high load all day

the bitcoin mining machine is the computer used to earn bitcoin. This kind of computer generally has professional mining chips, and works by installing a large number of graphics cards, which consumes a lot of power. One of the ways to get bitcoin is to download mining software and then run specific algorithm to communicate with remote server to get corresponding bitcoin

Mining is a process of increasing bitcoin money supply. Mining also protects the security of the bitcoin system, prevents fraulent transactions, and avoids "double payment", which means spending the same bitcoin multiple times. Miners offer algorithms for bitcoin networks in exchange for the opportunity to get bitcoin rewards. The miners verify each new transaction and record it in the general ledger

2.

There are many things to experience, but they are all developing in a healthy way. Otherwise, today's bitcoin can reach 120000

in April 2017, the central bank and other seven ministries and commissions identified ICO as illegal fund-raising, called ICO to stop and announced: ICO refers to the so-called "virtual currency" that financing entities raise bitcoin, Ethereum and other so-called "virtual currency" from investors through the illegal sale and circulation of tokens. In essence, ICO is a kind of unauthorized illegal public financing behavior, suspected of illegal sale of tokens, tickets, financial fraud, etc Illegal and criminal activities of pyramid selling

for a time, the major exchange platforms have withdrawn their assets and closed down, and the currencies of the exchanges have dived, with a drop of 90%. This is the famous "94" event in the currency circle

3. Aslong coin is a kind of platform subscription coin, and there is little information on the Internet. There is a netizen on Qinghai news network who said that the Internet has nothing to do with it. The news report of zhonghua.com will be deleted. This shows that there are a lot of false elements in the propaganda of this kind of currency

the risk of platform subscription currency is great, so we suggest you stay away from it. Bitcoin home has also reported similar incidents of running away from the subscription currency platform before. Subscription currency platform is small, information is not open and transparent, and it is not necessarily an open source cryptocurrency. Some platforms may gather a lot of funds on the platform and run away. They may also encounter the selling of Dazhuang, which leads to the collapse of Shanzhai coin. The development and operation team will also choose to develop a new Shanzhai coin.

4. Mining needs a special miner. How many levels of floating-point computing power do you have to reach before you can decode it? Ordinary household computers don't have the ability to mine. Of course, forced mining is OK. You may not be able to dig a coin for several years.

5. The first step in setting up mining equipment is to choose the right hardware. This article will focus on GPU (graphics card) mining, of course, you can use CPU or ASIC equipment mining. Amd graphics card architecture is very beneficial to mining. NVIDIA card is not suitable for mining because of its low hash rate. The best NVIDIA graphics cards are less than 0.5 megahash. Notebook Hardware mining is not as good as NVIDIA card, which is a bad option for mining. You need to use a desktop system for mining. There is a desktop system to ensure adequate cooling of the hardware

the graphics card or card needs to be able to match the motherboard, and the power supply must have enough PCI-E connector. Before determining the graphics card, pay attention to these. In order for the system to cool down sufficiently, you need to remove the cover of the chassis in order to get better heat dissipation. This is what people call "open air rig.". If you can aim the system at a fan or air conditioner, you can make the device cooler when it's running, thus extending its life and keeping it efficient<

graphics processing unit (GPU), also known as display core, visual processor and display chip, is a kind of microprocessor specialized in image operation on personal computers, workstations, game machines and some mobile devices (such as tablet computers, smart phones, etc.)

it is used to convert and drive the display information needed by the computer system, provide the line scan signal to the display, and control the correct display of the display. It is an important component connecting the display and the PC motherboard, and is also one of the important equipment of "man-machine dialogue"

the processor of graphics card is called graphics processor (GPU), which is the "heart" of graphics card. Similar to CPU, GPU is designed to perform complex mathematical and geometric calculations, which are necessary for graphics rendering. Some of the fastest GPUs integrate more transistors than ordinary CPUs.

6. Let's put it this way. There must be a mine card around 500. There are a lot of people mining with 390x. The cards of real players won't be sold at a low price. Buying mine cards depends on your character. It takes a short time to buy mine cards. In my impression, 390x is just the most popular time for mining. It's estimated that most of them are slag.

7. There are seven stations from the exhibition center station to Luohu station by taking the Luobao line: via Gangxia → Huaqiang road → Science Museum → Grand Theater → old street → international trade. It takes about 40 minutes to get to Luohu station, and the ticket price is 3 yuan.

8. 1、 Visual inspection
1. Check the official mark of gold. They are usually engraved with 999 or 990, or 10K, 18K, 22K, 24K. We don't consider those below 10K, because the gold content is too low. If you look with a magnifying glass, you will see more carefully
2. Ancient gold ornaments do not have obvious official purity marks
3. Fake gold ornaments also have official marks, so further inspection is needed
4. Look for obvious discoloration. Check the wear area of the gold surface, usually at the edge of the gold proct, and check the discoloration there. If the gold color graally disappears and becomes another color, then the proct is only gilded

2. Bromine chemical test
1. Put the gold proct into the alcohol solution and shake it for a while
2. Soak a piece of filter paper with alcohol solution
3. The filter paper turns grey purple
4. Drop 4 drops of bromine-a reagent onto the filter paper. If the filter paper turns white, then the gold proct is real gold
the total test time is 20 minutes< This is a simple test, but it is not a sufficient proof to prove whether it is real gold. You can find a powerful magnet to test
gold is not a magnetic metal. If your proct is attracted by magnets, it is enough to prove that this proct is not gold. But you can't prove that your proct is gold just because it doesn't react to magnets, because there are a lot of non-magnetic metals< Only a few metals are denser than gold in density test. The density of pure 24K gold is about 19.3 g / ml, which is much higher than that of other metals. Density test is enough to prove that your proct is gold. The higher the density, the higher the purity of gold. Please make sure that no gems are attached to your proct
1. If you don't have this kind of equipment, jewelry stores can usually do density test for you
2. You can put your gold proct into a container full of water, and then test the volume of the spilled water, and divide it by the weight of the proct you weigh, which is the density of your gold proct. Remember that different gold purities have different G / ml ratios: 14k – 12.9? 14.6 g / ml 18K gold - 15.2 to 15.9 g / ml 18K platinum - 14.7? 16.9 g / ml 22K - 17.7% to 17.8 g / ml< We've all seen movies where miners bite gold to test it. We also see how easy the test is when Olympic athletes bite their "gold" medals when they win gold medals
1. Take a bite
2. Check your bite marks. The deeper the bite marks, the higher the purity of gold
in fact, this is not a recommended test, which will damage your teeth. What's more, gold will be plated with lead, which is softer< 6. Ceramic scratch test method
1. Use unglazed ceramics. If you don't have this, you can buy it from a ceramic shop
2. Scratch your gold proct with ceramic. If it is black scratch, it means your proct is not gold. If it is gold scratch, it means your proct is gold.

9. What you're saying is that ASUS R9
390x
8g Raptor graphics card is composed of three fan design and multi heat pipe cooling. The performance of this graphics card is of course not worth mentioning. It's very good. My friend has two ASUS R9
390x for exchanging fire. The performance of this graphics card is between gtx980 and gtx980ti. Now we need 2500 yuan to buy second-hand,