How to choose a high quality computer power supply
Multi-pronged teaching you to choose a good power supply
The purchase of power is an old topic. For users who often pay attention to computer information, it is no longer difficult to choose a power supply. For the mass installer, even if you go to the store before you ask the old bird or go online to write down the hardware model, but when you actually go to the store, you will become overwhelmed by the business, and the original is well established. The plan is also ruined.
Some users are wondering, the power structure is a piece of iron wrapped circuit components, do not open it, do not know how to do inside, how to determine the power recommended by the business? This is what the author wants to tell next. How to choose a power supply if the consumer does not understand the computer hardware and does not understand the circuit.
For consumers to specify the purchase of power, there are many excuses for businesses to dispel their ideas, such as: out of stock, this power supply repair rate is high, bad reputation, high prices, etc., so that consumers accept the power recommended by the business. This practice is not only the power supply, it is also a common trick of the store, it can be said that it is not a good test! With the shrinking of the PC industry, hardware manufacturers survive the fittest, there are only a handful of well-known manufacturers on the market, and product homogeneity is more serious, especially for hardware products such as power supplies. The most mainstream solution is active PFC technology + Double-tube forward, whether it is high-end kW or 300-watt entry-level, you can see it.
Mainstream active PFC technology + double tube forward
Below the author to the novice to go to the store to buy power to make a few suggestions, if the reader is a veteran can ignore. When you buy power without guidance, you want the doctor to treat the patient. The four points of "looking," "smelling," "ask," and "cutting" are indispensable.
Beginner's Guide "Wang"
"Wang" means to let consumers see, what do you see? Of course, it is to look at the power supply. The nameplate of the power supply is very important. It is a symbol of the power status and also marks many important parameters.
There are many parameters on the power rating plate. There are several parameters that are very important: first, the specific model of the product, two, the rated power of the power supply, three, +12V output capability. For some users of the platform without a discrete graphics card, the first two parameters are more important.
Some friends may ask, is it not important that some nationally certified safety signs are not important? Important, but these certification icons are printed for you on the fake cottage power supply, which makes no sense.
Shanzhai power supply nameplate is extremely non-standard, no specific model
Standard parameter list, model and output parameters are available
1. The specific model of the power supply product is an ID card/ID of the power supply. At present, many power sources on the market claim to pass the US 80plus certification, and the conversion efficiency is high. However, there is no parameter on the nameplate indicating the specific model of the power supply. The 80plus certification slogan has been cracked, because the 80plus certification requires detailed product models.
2. The power output table above the power supply explains in detail the maximum output capability and rated power of the power supply. Counterfeit and inferior power supplies are often printed in a simplistic manner, unclearly labeled, and typographically inconsistent with specifications. Consumers can take a few power comparisons before making a purchase. As for the rated power, if the consumer buys a discrete graphics card, it is necessary to consider the graphics card power consumption, and the upgrade margin in the future.
+12V output
3, +12V output capacity is mainly manifested in overclocking and discrete graphics, if the user is only a display platform, the basic can be ignored. If the user wants both CPU overclocking and independent graphics, it is recommended to select a single +12V output power or support 2 +12V output power, and then the user wants dual graphics card crossfire, you need 2 or 3 +12V The output power is on, of course, provided that the number of 6+2pin interfaces on the power supply is sufficient.
Beginner's Guide "Ask"
Get the power recommended by the merchant, in addition to carefully check the nameplate, but also ask the power brand, origin and after-sales. If consumers who pay a little attention to computer information usually know a little about the power brand, if the merchant recommends a common brand, then there is no problem. If it is not clear, it is necessary to understand the origin of the brand supply and the after-sales problem. After all, the power supply homogenization is serious now, and the basic brands on the market use the same solution. The specific difference is the price of the materials used.
If conditions permit, consumers can call the computer friends on the spot or check the product information online.
Novice guide "smell" and "cut"
"Smell" and "cut" mean that in addition to seeing and asking questions, doctors should listen to their own voices and pulse, that is, consumers should try to experience power products. The power supply is supplied to the hardware through the wire, and the length and quality of the wire affect the use of the power supply in the future.
The audience watched the video in 15 seconds, the power supply began to make a sharp noise (PS: the background of the buzz is the factory to switch the power supply test)
Finally, after the consumer purchases the power supply, it must be tested on the machine. At present, there is no professional software for measuring power supply on the Internet. Users want to know whether the power supply is stable or not. The main reason is to check the stability of the power supply when the computer is fully loaded. The computer software that makes the computer fully loaded mainly includes: AIDA64, Prime95, etc., which are full of CPU, and the full load of the graphics card is furmark, the whole system is fully loaded with software ORTHOS.
The time of the grill should be as long as possible, and copy it for 20 minutes to check the stability of the power supply. During the baking machine, the user can put the ear close to the power supply, and listen to whether the noise is generated during the operation of the power supply, the buzzing of the current, etc., which may become the source of the power supply to be scrapped in the future.
After the above points are done, users can avoid the inferior power supply and guarantee the consumer rights.
Thick Film Chip Resistors Chip resistors, Chip from Fixed Resistor directly translated, commonly known as SMD Resistor (SMD Resistor), is one of the metallic glass uranium Resistor.It is a resistor made by mixing metal powder and glass uranium powder and using screen printing method to print on the substrate.Moisture and high temperature resistance, low temperature coefficient.It can save the circuit space cost and make the design more refined.
Thick Film Chip Resistors,Smd Thick Film Chip Resistor,Thick Film High Voltage Chip Resistor,Chip Resistors Thick Film Resistors
YANGZHOU POSITIONING TECH CO., LTD. , https://www.cnpositioning.com