Capacitors Black
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Capacitors Black
Laptop computer repair industry shady deal
Bigger and lighter notebooks, growing in thin, this is not a good thing
The notebook ,for example, Acer Aspire One is now bigger and light, growing in thin, this is not a good thing. Do light notebook, do thin, which means doing a small notebook motherboard, do thin. Notebook motherboard is small, but above the chip and board layout will not change within the small. As a result, it causes a "line of the extreme step plate-intensive " and "all kinds of chips from the compact, " and so on.
I had the laptop motherboard handle them, thin the highest failure rate of the motherboard, the basic are "board deformation " of the symptoms. "board deformation " will lead directly to instability in notebook performance, specifically what kind of failure occurs, it is really hard to say, but the result is positive maintenance - can not repair, you must replace the motherboard.
The more light the more compact notebook motherboard chip density, the higher
Doing small notebook motherboard, above the chip density is high. Some small chips emit a high heat, the heat will affect the surrounding "FET. " "FET" is generally used to control the production or transformation of some of the operating voltage, if it is affected, it will lead to short-circuit board. Once the circuit board, the problem would be big. It will not stop power, keep power, and ultimately destroyed the processor and other components.
Therefore, the notebook computer's motherboard is not as small as possible, so the heat will only increase the burden on the motherboard, increased risk of short-circuit board. We know, ThinkPad X60s is the best brand of small-size models. It uses the Intel Ultra Low Voltage processor, and strictly control the internal operating temperature, greatly reducing the possibility of failure - which is "why the low frequency ultra-low voltage processors, but they sell higher price"because of the One. Of course, this one-sided view but I am now changing notebook production process, "taking into account the safety and thin"is not unthinkable.
Notebook manufacturers reduce production costs, the factory can only cut corners notebook
Currently, the major notebook as Acer ZG5 manufacturers are in the mad scramble for the low-end market share. Want to attack the low-end market, we must reduce production costs. Therefore, the notebook company in order to plant, when the price low is very low. Our factory production of notebook motherboard, the production cost of 1,000 yuan a piece of board, there can only earn 1 dollar big clients - this kind of thing that out, who would believe?
Notebook manufacturers reduce production cost ,notebook factories cut corners
However, the plant to pull in the big clients will still take orders. But we can not lose money producing it? Therefore, there have been "improvement board" to be used. Bluntly, in fact, cutting corners. For example: a memory voltage lines, which should use 30 capacitors. However, if the capacitance of only 12 words, too, can work. In this way, we will save 18 capacitors. A memory capacitor voltage line 18 provinces, a motherboard will save more material.
There is, the better the quality of the original materials should be used, in order to reduce production costs, are now in place to get a bargain. In this way, the factory will then save a very substantial funding. However,notebook motherboards are cheap because of use of many materials, and an "unstable " and so on, eventually the victim or the purchase of notebook consumers.
This is an easy for everyone to negligence, it will become a major problem of maintenance
In general, notebook manufacturers and dealers will not tell the consumer notebook, this notebook using a "memory board"or"extended memory. " The so-called "on-board memory ", in short, direct soldering on the motherboard's memory. The so-called "extended memory", in short, are free to plug in memory.
With "on-board memory " designed motherboard very unstable
In my experience, the use of "on-board memory " designed motherboard very unstable and very prone to blue screen, Huaping and black and so on; with "extended memory"design of the board more stable, probably more than a "on-board memory "Design of the board stability of 10.
I had the laptop motherboard handle them, as long as a "memory board"design, and memory failure, and that basically can declare scrapped. Therefore, I suggest you buy the notebook, be sure to ask, "This machine is used in onboard memory or extended memory"
What to choose integrated graphics, what graphics card to choose]
In general,notebook manufacturers and dealers will not tell the consumer notebook, this notebook's graphics card is "welded on the motherboard", or "free to plug. " Some notebook welded directly to the motherboard graphics card, although with the same use, but there is a high failure risk - if you do not Huaping, the screen display is indeed better than the integrated graphics; Once Huaping and the black, board directly Followed scrapped it.
The motherboard in the event of failure, it is difficult to judge the graphics card is damaged, or memory corruption. In the factory is almost impossible to check out, because engineers did not have time to check each line to help you take; on the outside of the maintenance, and can not get out of check, because not that technical conditions. Moreover, even if the replacement card and the memory does not necessarily solve the problem, but also give you to swap out other illnesses.
So, if the money to buy "free to plug the"independence was notebook; if the money to buy an integrated bar - designed motherboard with integrated graphics, stability, independence explicit than the board several times higher. Even Huaping and blank screen, at most, which is another memory, another North Bridge or something.
I use the laptop is the Founder H240D, had to buy time spent 7300 yuan. However, I almost always regarded it as a desktop machine, and it is a bit ruined things. If you buy a computer, do not need to move around, or a desktop benefits; If you buy a computer, graph is a "lightweight portable", it would have to choose a notebook.
Personally, I think, 7,000 - 8500 yuan between the notebook is very good. The price of the notebook, in the production process are generally not jerry-building cases, and the quality are good. Of course, if you more money would be better to buy high-end products. Although the laptop price is now lower, but the real "good product " is very expensive.
The biggest advantage is the mobile laptop, but often also affect the safety of mobile
We all know, the biggest advantage of notebooks is the "mobile", but "mobile"also need to be careful. In general, the notebook will appear in the process of moving slight shaking and vibration - this is inevitable. Most people think that notebook is designed for mobile office, a slight shaking and vibration is no impact. In fact, it is not the case.
In my many years of accumulated experience, the notebook often move will affect their safety. We "created by frequent movement of security risk " as "cold welding. " As we all know, the motherboard's chips are used above the solder, soldered to the motherboard. Notebook when on the move, each generation will cause a slight vibration weld loose.
Section analysis we are doing when the microscope has been used 400 times, South Bridge and a board soldering tin ball. South Bridge connecting the upper and the ball, the lower part and the motherboard connected to joints in the South Bridge has a slight fault phenomenon.
Overall, the notebook include Dell M1330"can not move, do not move", often move would lead to "cold welding ", the notebook stability was reduced.
Laptop performance can not be ignored - the temperature difference
In the factory, the notebook computer has a performance index can not be ignored, that is, "temperature. " As we all know, the motherboard's chips are used above the solder welding, the solder will be broken because of "heating or cooling" in large temperature difference
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how do i connect my pump using the red, black and yellow wire?
I have a pump with no panel cover so it has no wiring diagram, i believer its a gould but it is one of he smallest i have ever seen, i think it used to run the fish pond in front of my moms house. There is no numbers whatsoever on it. All it has 3 wires on it, red, black and yellow and nothing else, no relay or capacitor so i do not know if this is missing electrical components or if it originally came like that. Does anyone have any idea how i could hook this up to atleast test it. All i know is that it work on 110v according to my mom.
i found out that is a popular garden/house hold application pump known as the vortex type. hope this helps with the wiring, really need help to get this hooked up and running.
The pump may be designed to work on 120V or 240V. This is very common. So one of the wires would be a "common" (used in both wiring configurations) most likely the black wire. Then another wire for connecting it to 240V, most likely the red wire, and finally a wire for connecting it to 120V, most likely the white or yellow wire. I don't know what pump motor you have so I am basing this on my experience only. You should be able to try this without damaging the motor since you can hook-up 120V to a 240V motor it just won't work. But don't try it the other way around. BE CAREFUL and good luck.
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