Mining machinery graphics card in 2018
The graphics card market in 2017 is the most special in recent years. In the past few years, no graphics card will increase its price by 100% a few months after its release. RX 580 has achieved this goal. Together with all the graphics cards below 3000 yuan, it has broken through the premium point in an irresistible manner. All this happened with the bitcoin price breaking through 3000 US dollars. After miners swept the RMB 2000 RX 580, the price of low-end RX 560 and even GTX 1050 Ti increased to varying degrees. However, is the price directly proportional to the ability of hash algorithm? Recently, we did a test to collect the new generation of graphics cards at various prices on the market, test the mining speed of Ethernet and bitcoin, and see which card has the highest cost performance
Different from the thousand yuan market, this wave of mining tide has a great impact on high-end graphics cards. In the test results, RX 580 and Rx 480 have almost reached the bottom of GTX 1070. Moreover, the price of Rx 580 is even competing with that of GTX 1070, so the miners directly swept the 3000 yuan market when GTX 1060 3gb / 6GB is out of stock, and GTX 1070 is basically out of stock. The more advanced GTX 1080 is also out of stock, but it's not clear whether the players are forced to go directly to the high-end card or the miners extend their claws to this market. The situation of GTX 1080 ti is only slightly improved, but it's not much better. However, not everyone can afford the 6000 yuan graphics card. Only the top players will be affected, but it's just a narrower choice. It's not the case that the rich can't buy itsummary:
to mine, the first choice is the graphics card with more than 3gb video memory, which is the basis. In addition, the core frequency will affect the mining speed. We have two GTX 1080 cards on hand, one is public version, and the other is MSI GTX 1080 gaming X. the operating frequencies of the two cards are 1885mhz and 1936mhz respectively. After testing, because of the frequency, the latter will be about 4% faster than the former in actual mining. The advantages of high-frequency graphics card are highlighted
So Xiaobian's opinions and suggestions are as follows:the low-end card and the old architecture card are not suitable for mining. GTX 1080 ti is an extreme, with the most powerful performance, but the price is not suitable for large-scale procurement. The mining speed of a card with the same location is much faster than that of N card, The cost performance of GTX 1060 3gb is higher than that of GTX 1060 6GB. The frequency and the number of stream processors / CUDA have a great influence on the performance of the card. The size of video memory has no influence on the mining. It's enough. Different video cards will have different profits if they dig different coins. If you want to further explore, you need to test several currencies, Limited to space, we only select two representative currencies to test
as long as the mine disaster does not occur, the shortage will last for a long time. However, if there is a mine disaster, a large number of second-hand mine cards will directly enter the market. These cards are always running at full load and full speed, and their service life is greatly shortened compared with that of ordinary users. Even if the price is lower, they will roll over at any time, There is no need to start at all. Moreover, the second-hand market will be directly disrupted. At that time, it will be difficult for some normal users to get out of the second-hand market, and the deep-water fish's Dragon killing knife will explode the galaxy. Now it is said that NVIDIA is making some graphics cards without display output interface, which are provided to miners as mine cards. With a certain capacity, if the mine card still can't satisfy the miners, won't the miners buy the graphics card in the consumer market? The only function of these special mine cards is to prevent mine cards from flowing into the second-hand market, which can not alleviate the current shortage of graphics cards
The miner is better
-
the electricity charge for mining with graphics card is very high, and the performance is not high, so it can't even earn the electricity charge
-
mining is an investment more than time and speed. We should try to dig more money in the shortest time. Therefore, the professional mining machines of BTC now stress the characteristics of simple operation, small footprint and low power consumption. For example, Yingtai has developed a professional mining motherboard with a computing power of 23.488g/hash, and the proct model is btc-24gh< br />
in other words, there are a lot of "mining machine graphics cards" on Taobao, because these graphics cards use less materials under the same core and basically unchanged hash speed, such as recing video memory to improve the performance price ratio (the size of video memory has little to do with the mining speed), which can shorten the time to recover the cost
in short, the graphics card of mining machine is the core of common high-end graphics card + the workmanship of low-end graphics card, or some cheap medium and high-end public graphics card.
all oil holes on the machine and all rotating parts should be refueled with clean sewing machine oil every 4 hours. Other oils and unclean sewing machine oil should not be used, so as not to affect the service life of the machine
(2) regular maintenance and inspection
it is necessary to keep the parts clean, regularly check whether the temperature and sound of the rotating parts are normal, and repair them immediately if any problems are found, so as to avoid damaging the machine
generally, minor overhaul is concted once a month, and cleaning and major overhaul are concted once a half year. After being put into use for a long time, it should be cleaned and overhauled first
the thickness and use speed of the sewing material should be selected within the specified range, and it should not be overloaded or over speed.
for example, bitcoin, lightcoin, gold card, reborn coin, doggy coin, lightcoin, Ruitai coin, bitstock and other digital currencies can be downloaded from rich packages
but there is no wallet to download MLM or some direct selling coins
for example: Baichuan coin, Morgan coin, treasure coin, etc.
Preface
Chapter one overview of depression
section one origin and development of depression
I. description of depression in the West
II. Description of depression in China
section two harm of depression
I. Influence on daily life
II. Suicidal behavior
section three understanding of depression
I. correct understanding of depression
II The differences between depression and other diseases
3. Adolescent depression
Chapter 2: biological causes of depression
section 1: genetic factors
1. Blood relationship
2. Twins
3. Foster children
section 2: neurotransmitters
1. Serotonin
2. Norepinephrine
3. Dopamine
4 Neuropeptides
the third segment of neuroendocrine system
I. endocrine hormones
II. Hypothalamus pituitary adrenal axis
III. hypothalamus pituitary thyroid axis
IV. immunological studies
I. immune cells
II. Cytokines
v. neural structure and function
I. electroencephalogram
II. Brain structure
III Brain function
section 6 biological rhythm
I, biological clock
II, sleep disorders
III, seasonal
Chapter 3 psychological causes of depression
section 1 psychoanalysis
I, "object splitting" theory
II, "mother infant attachment" theory
III, "self punishment" theory
IV, "psychological defense" theory
section 2 psychological behavior theory
I Learned helplessness
2. Reinforcement model
3. Regression model
4. Punishment model
section 3. Cognitive model
1. Quality stress model
2. Cognitive distortion model
3. ABC theory
4. Attribution style theory
5. Self attention theory
section 4. Other psychological theories
1. Susceptible personality of depression
2 Self esteem model
3. Hopeless depression model
Chapter 4: Sociological etiology of depression
section 1: family factors
1. Family structure
2. Parenting style
3. Family economic status
4. Family life events
section 2: marriage factors
1. Divorce
2. Sex life
3. Fertility
section 3: interpersonal relationship
1 Interpersonal personality characteristics
2. Interpersonal trust
3. Interpersonal conflict
4. Other social factors
1. Social support
2. Social change
3. Social occupation
4. Gender factors
5. Symptoms and diagnosis of depression
1. Clinical manifestations of depression
1. Painful emotional experience
2 Impairment of normal ability
3. Somatic symptoms
4. Cognitive impairment
5. Rare non characteristic symptoms
6. Changes of expression, daily behavior and speech
7. Changes of social behavior.
section 2 types of depression
1. Standard classification
2. Special types
section 3 diagnosis of depression
1. Diagnostic steps
2 Differential diagnosis
Chapter 6 behavioral therapy of depression
section 1 relaxation techniques
I breathing relaxation techniques
II muscle relaxation techniques
III other relaxation techniques
section 2 confidence training
I implementation steps of confidence training
II common techniques of confidence training
III Notes for implementation
section 3 behavior shaping technology
I. implementation steps of behavior shaping
II. Implementation technology of behavior shaping
III. notes for behavior shaping
section 4 behavior contract technology
I. implementation steps of behavior contract technology
II. Implementation technology of behavior contract
III Considerations for implementation
section 5 thought blocking technology
I. implementation steps of thought blocking
II. Implementation considerations
Chapter 7 cognitive therapy for depression
section 1 Ellis rational emotive therapy
I. implementation steps of rational emotive therapy
II. Implementation technology of rational emotive therapy
III Implementation considerations
section 2 Beck Cognitive Therapy
I. basic steps of Beck Cognitive Therapy
II. Implementation techniques of Beck Cognitive Therapy
III. implementation considerations
section 3 attribution therapy
I. implementation steps of attribution therapy
II. Implementation techniques of attribution therapy
III. implementation considerations
section 4 new emotive therapy
I Implementation steps of new emotive therapy
2. Implementation techniques of new emotive therapy
3. Implementation precautions
Chapter 8 interpersonal therapy for depression
section 1 treatment mode of interpersonal therapy
1. Setting of interpersonal therapy
2. Skills of interpersonal therapy
3 Problems to pay attention to
section 2 the process of interpersonal therapy
I. early stage of treatment
II. Mid stage of treatment
III. final stage
section 3 interpersonal therapy of adolescent, postpartum and senile depression
I. interpersonal therapy of adolescent depression
II. Interpersonal therapy of postpartum depression
III Interpersonal relationship therapy for senile depression
section 4 the integration of interpersonal relationship therapy and other psychotherapy
I. group interpersonal relationship therapy
II. Interpersonal cognitive problem solving therapy
Chapter 9 Art Therapy for depression
section 1. The implementation conditions of Sandplay Therapy
II. The implementation process and specific skills of Sandplay Therapy
III Notes on the implementation of Sandplay Therapy
section 2 music therapy
I. implementation conditions of music therapy
II. Implementation process of music therapy
III. notes on the implementation of music therapy
section 3 psychodrama therapy
I. Basic Elements of psychodrama therapy implementation
II. Implementation process and specific skills of psychodrama therapy
III What should be paid attention to in the implementation of psychodrama therapy Dance therapy
Chapter 10 drug treatment of depression
section 1 traditional antidepressants
amitriptyline
imipramine
doxepin
clomipramine hydrochloride
demetirine hydrochloride
maprotiline
minaprin
moclobemide
section 2 new antidepressants
fluoxetine
paroxetine
citalopram
sertraline
fluvoxamine
venlafaxine
misoprostone
bupropion
section 3 other antidepressants
mirtazapine
reboxetine
trazodone
section 4 common Chinese medicine prescriptions
Ganmai Dazao Decoction
Xiaoyao Powder
Banxia Houpu Decoction
Guipi Decoction
Zishui Qinggan Decoction
Anshen Ding pill
depression noun index
...
