Power is an important part of the computer. Once the choice is not good, the consequences can be catastrophic. So what is the price of computer power ? How to buy computer power? The following decoration home decoration network Xiaobian will give you an answer one by one, for your reference when purchasing.
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What is the price of computer power?
The computer power supply price of 65 yuan should be the rated power of about 200w, is a cottage or refurbished. Not recommended to buy. The power of the Great Wall is really good, but the price is also high. If the budget is not high, then pick a power rating of 300w, what brand will do. If the demand is high, then buy a big brand, the 350w rated power price can be within 200.
Good power supply, stable voltage and pure waveform are very helpful for stable operation of hardware. The power and component selection of a good power supply are always strictly matched. For example, 300W MAX (real standard rated) is generally 680uf, and the power and capacitance specifications of a good power supply are also strictly matched. For example, Delta's 450W rated product, single capacitor standard 450V390UF. Hangjia desktop computer power supply 159 yuan; Great Wall 350WP4 mute master power Great Wall power supply mute 139 yuan; Delta DPS-280FB computer power supply 130 yuan; almost 80-100 yuan.
How to buy computer power?
Computer power supply points 1, the shell is good or bad:
The power supply casing can affect the shielding of electromagnetic waves and the heat dissipation of the power supply. The poor electromagnetic shielding effect will affect people's health. The poor heat dissipation effect will affect the life of the power supply and the life of the hardware. Therefore, whether the outer casing of the power supply is good or not is very important. At present, the power supply on the market is generally made of galvanized steel, and some products are made of all-aluminum. If the plate of the power supply case is too thin, the radiation protection effect will be reduced. Under normal circumstances, the consumer can distinguish the weight of the power supply. Some of the power sources on the market use galvanized iron sheets. In fact, this is relatively easy to distinguish. Just use a nail to draw a power supply casing and see if you can leave traces, but you should do this in a less obvious place. It was discovered by the merchant as well.
Computer power supply points 2, nameplate view:
When consumers look at the nameplate, they usually look at the rated power to see if there is an 80Plus. In fact, rated power and 80Plus do not represent product quality. Especially 80Plus, consumers will think that the power quality is reliable when they see it. In fact, this is a misunderstanding. Generally, you need to look at the signs of power quality certification, CCC (S) safety certification, CCC (S&E) safety and electromagnetic compatibility certification, CCC (EMC) electromagnetic compatibility certification, CCC (F) fire certification, these certifications are only the standards that the power supply must meet. . However, the power supply that does not pass these certifications usually represents a small brand, and the power quality of small brands is not guaranteed. In addition, FCC certification and UL certification represent higher standards, and the power supply that passes these certifications is usually of higher quality.
Computer power supply points 3, wire selection:
In the wire selection of the power supply, the longer the wire is, the better. The longer the wire, the lower the conversion efficiency, so it is better to choose the appropriate length of the power cable. Also depends on whether the interface of the power cable is sufficient, so as not to affect the future upgrade. However, the module power supply has appeared on the market, and the wire can be arbitrarily selected, which greatly facilitates the consumer.
Computer power supply points 4, the size of the fan:
Now there are more and more big fans on the market. What is going on? In fact, this should start from the heat dissipation of the power supply. In the case of the same speed, the larger the fan port, the better the air volume and the better the heat dissipation. Temperature is a key factor in the life of the power supply. In today's fierce market competition, the power supply is not guaranteed for three or five years, so the manufacturers basically use large fans in order to extend the life of the power supply.
Computer power supply points 5, internal components:
The power supply is not allowed to open, once it is opened, it loses its warranty, which also provides convenience for some manufacturers to do some trickiness. However, this does not stop us from observing the inside of the power supply. We can observe the internal electronic components through the vents of the power supply. Whether the power supply is passive PFC or active PFC, it is recommended to select the power supply with active PFC design. In fact, the passive PFC of the power supply is not bad. Because the passive PFC structure is simple and easy to manufacture, some bad manufacturers will make some thoughts on this, resulting in a decline in power quality. The active PFC production process is complicated, and under normal circumstances, there will be no fake products. Another is to look at the power board, PCB board is best fireproof material, because manufacturers usually design the fuse on the PCB, which increases the risk factor of the PCB. Then look at the power cable to see if it uses 16 or 18 wire, because this wire has greater bearing capacity and is safer.
The above is the price of the computer power supply brought to you by Xiaobian? How to buy computer power? I believe that everyone has a basic understanding of the price of computer power after reading this article. If you want to know more about decoration, please click to enter the decoration knowledge channel .
More related wonderful reading:
How to connect the computer power cord? Computer power cable connection
How much is the computer power cord? Computer power cord color description
What kind of computer power is good? How to check the computer power?
How is the computer power supply calculated? Computer power calculation method
What brand of computer power is good? Which computer power brand is better?
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