Select the power supply according to the configuration, and how to select the power supply correctly

Huntkey Calm King Diamond Edition 250, 300W, the redundant power is more stable when overclocked, and it can be used for future upgrades. Celeron 430 is actually better than super, which is good, but it is the low end. Also,This u can be hard changed.,If you have strong hands-on ability, change it.,It's connected to 2 contact points.,It's very simple.,The method is available online.。

But the graphics card is too chicken, and even said that the new 790GX integrated graphics card is not on par with it (unfortunately this is AMD's integrated motherboard), not as good as the 8600GT or hard disk and 120G, 160G The price difference is not big, it is highly recommended to change, or not to buy, use the old machine. The memory is not as cheap as using a single 1G 800.

The rated power of 250W is enough, and the 300W one is OK, as for the brand, you can choose the Great Wall, Huntkey, and Jinhetian. This configuration uses the power supply at the bottom end, and the power supply of the right is recommended for 300 yuan, so that the quality and workmanship can be guaranteed, and no matter how cheap it is, it will cut corners.

More than 300w is sufficient. There are many general large factories that can. For example, the famous brands are Huntkey, Great Wall and so on.

About 300w can be, as long as it is a large manufacturer, such as Jinhetian, colorful technology, Huntkey or something, they pay more attention to reputation, power is generally not false, but you must remember to identify fakes.

Technical Exhibition Thunderbolt 450 188

Power Type: Desktop Rated Power: 350 Detailed Parameters》 Comparison.

Memory to buy 2 and 1G group sprinkle is not expensive now.

A 300W Great Wall power supply should do.

When buying a computer power supply, you must pay attention to the following four power supply parameters, which is very helpful for you to choose a high-quality power supply.

1 The weight of the power supply.

Generally speaking, a good power supply shell is generally made of high-quality steel, with good material and thick quality, so heavier power supplies are made of better materials. The parts inside the power supply, such as transformers, heat sinks, etc., are also heavier.

The heat sink used in a good power supply should be an aluminum or even copper heat sink, and the larger the volume, the better the heat dissipation effect. Generally, the heat sink is made into a comb, and the teeth are deeper, the more open and thick, the better the heat dissipation effect. Basically, it's hard to see the heatsink without taking the power supply apart, so the intuitive way is to judge it by weight.

A good power supply will generally add some components to improve the safety factor, so the weight will naturally increase. Inferior power supplies will save some capacitors and coils, and the weight will be lighter.

2 Power transformer.

The key part of the power supply is the transformer, and the simple way to judge is to look at the size of the transformer. Generally, the position of the transformer is in the two heat sinks, according to common sense, the inner diameter of the transformer coil of the 250W power supply should not be less than 28mm, and the 300W power supply should not be less than 33mm. After passing through the transformer, the current is output through the rectifier output coil.

At the current output end, you can see the rectifier output coil, most manufacturers use the code 10262 and 130626, the rectifier output coil of the 250W power supply should not be lower than the rectifier output coil of 10262. The rectifier output coil of the 300W power supply should not be lower than the rectifier output coil of the 130626. Next to the vertical capacitor in the power supply, there will be a black bridge rectifier, and some will use 4 diodes instead.

In terms of stability, the stability of the power supply of the bridge rectifier.

3 Power supply fan.

The fan plays an important role in the heat dissipation of the configuration during the working process of the power supply. The loose piece only dissipates heat into the air, and if the hot air cannot be discharged in time, the heat dissipation effect will be greatly reduced. The arrangement of the fans plays a decisive role in the heat dissipation capacity.

The fans of the traditional version of the PC power supply above are exhausted to dissipate heat, which can ensure that the heat in the power supply can be discharged in time, avoid the accumulation of heat in the power supply and the chassis, and also prevent external dust from entering the chassis from the power supply during work. There are two specifications of fans used in general PC power supplies: oil seal bearings and ball bearings, the former is quieter, but the latter has a longer life, of course, it is better if you use a magnetic levitation fan!

4 Look at certifications.

Generally speaking, the more certified items a power supply gets, the more reliable the quality of the power supply, of course, it must be the products that have really passed these certifications, not those power supplies that are labeled with false standard certifications.

The first step is to calculate the power of all the household appliances in the house

The types of household appliances in ordinary families are probably televisions, refrigerators, air conditioners, water heaters, microwave ovens and other household appliances.

In addition, we can also directly estimate the electricity consumption of electrical equipment at home according to the construction area of the home, now the country has given the residential electricity load standard, at this stage the electricity load standard of ordinary residential buildings is 80 watts per square meter, of course, the standards of each region are not the same, here is the construction area, for example, the construction area is 100 square meters of residential electricity load is 8000w.

In the second step, we can calculate the current according to the power of the device

After knowing the power of the device, we can find out and calculate the current, or according to the formula of power calculation p uicos, to find out and calculate the current i p (ucos);

We still take a house with a construction area of 100 square meters as an example, the electricity load at this time is 8000W, that is, the power p is 8000W, the voltage is calculated according to 220V, the power factor COS we take, and the coefficient is considered according to 1, so the calculation current I p (UCOS) 8000W (220V.

In the third step, we can calculate the current according to the work of the device to select the wire

Through the above calculation, we know that the calculated current of electricity consumption of a house with a construction area of 100 square meters is about, and after knowing the calculated current, we can choose the wire according to the calculated current;

We can directly check the safety ampacity meter of wires and cables, we will know that the ampacity range of 10 square copper core wires is between 44A and 65A under the condition of laying at a normal distance through the pipe buried at a normal distance, and this current carrying capacity range can meet our needs, of course, if you choose 16 square copper core wires, there is no problem.

Through the above three steps, we can choose the wire diameter of the wire we need at home, and you can also try this method.

The first thing to do is determine whether you choose a desktop power supply or a gaming power supply, or a small case power supply, a server power supply, or a power adapter power supply, etc. At the same time, it is also necessary to determine whether the module outputs a wide output, whether the input voltage is 110V or 220V, and whether the input voltage needs a wide voltage input.

2. The maximum power output of the power supply.

Determine what the general power your load needs, generally require the output power to account for about 70% of the total power, high and low can be used to 80%, the margin is too small if the power output may be overloaded, the power supply long-term overload work has a great impact on the life of the power supply, so first of all, determine the power you need. At the same time, there are voltage requirements, current requirements, whether single or dual or multiple outputs, these must be taken into account.

3. Isolated power supply or non-isolated power supply.

The power supply is divided into isolated and non-isolated power supply, and the isolated power supply generally has a transformer, and if the human body directly touches the live parts, it must be an isolated power supply, and the voltage should be within the safe voltage range. 

4. Miscellaneous. Choosing the right power supply should also take into account the problem of heat dissipation, considering the ambient temperature of the power supply, some power supplies do not have a fan inside or the heat dissipation effect is not good; It is also a factor to consider, it is not cost-effective to buy too high; Whether there is over-voltage and over-current protection; When choosing a power supply, you should also see if there is certification, for example, some power supplies are with 80plus certification, see clearly whether it is platinum or gold, silver, bronze, etc., it is best to buy a brand of power supply, trustworthy.

Computer enthusiasts are welcome to chat.

How big the power supply to buy a computer needs to be selected according to the hardware configuration of the computer.

Because there are three main types of power consumption for a computer:

It's the motherboard. Generally, the computer motherboard needs to have an electrical power of 20-30W.

It is a CPU, because the computer CPU brand is different and the model is different, and the electrical power required is wider, from 50W to 100W.

It's the graphics card, because the GPU of the graphics card is different, the difference in power consumption is very large, but it can be based on whether it has an auxiliary power socket, the socket uses a few pins, to make a simple judgment, the maximum power supply capacity of the computer PCI-E interface is 75W, if the graphics card does not have an auxiliary power socket, it means that its power will not be greater than 75W, a 6pin graphics card auxiliary power socket, can provide power in 75W, an 8pin graphics card auxiliary power socket, can provide power in 90W.

The power consumption of other hardware of the computer is less than 10W.

Choosing the right power supply for your computer can be calculated based on the power of the selected computer hardware. The rated power of the power supply should be purchased in line with the principle of Ningda.

For stability, it is recommended to change the power supply with a rated power of 300W.

If you need to upgrade the computer hardware, this power supply is obviously not enough, if you want to do it in one step, it is recommended to directly change the 400W power supply, although it will be more expensive, but for a long time you upgrade the hardware without thinking about the power supply.

Use Master Lu to test the power consumption, according to the power consumption, you buy a power supply by adding a little w, as long as the computer runs without problems, it means that there is no need to change.

Yes, but I guess it's a bit of a suspense when I play big games in the summer.

In fact, there is no need to use server power supply, as long as the power margin is large enough, many excellent desktop power supplies can be turned on all year round.

The i5 2300 is 95W at full load, the GTX560Ti is about 200W at full load, and the power consumption of the host is about 340W at full load. The power supply with a rated power of 450W can be driven. However, you have to turn on the machine all year round, so the power supply margin must be large, so that the heat and noise of the power supply will be relatively small, which is conducive to prolonging the life of the power supply, so it is recommended to choose a power supply with a rated power of more than 550W.

1.Xianma Black Charm 550, rated 550W, white label efficiency, 360 yuan.

2.Antik VP550P, rated 550W, bronze efficiency, 390 yuan.

3.Antik Model 620, rated 620W, 80PLUS white label, 550 yuan.

4.Corsair CX600 (V2), rated 600W, 80PLUS white label, 500 yuan.

5.Zhenhua Iceberg Flagship 600, rated 600W, 80PLUS silver, 700 yuan.

You seem to have asked twice, hehe.

Antec VP450 You may not be able to use it, but it is exactly 300 yuan, which is a good power supply, so you can reduce your power supply.

Why don't you have a special profession and don't play games, why do you want such a good CPU?

I'm using a 955 and it's wasteful.

The graphics card can be bought 5670 and 4830 Sapphire's on the line, both 600 yuan, 5550 is a bit of a chicken rib, high is not low.

If you don't play games, use the board of Jixianbei 880 890.

There are advantages to spending more than 4,000 options for AMD's platform, and Inter's cost performance is not high. The power supply is 350's bar, which is convenient for upgrading later. Not much. The graphics card is not good for 5670 or 5570, nothing else.

The graphics card should not be replaced with a motherboard 790

It's better to use a 790 board The integrated graphics card is enough With this integrated graphics card, it's no problem to play any Warcraft or something, and if it doesn't work in the future, you can press the graphics card.

Power supply 450W, since you use Gigabyte's board, then use Huntkey multi-core power supply is very good power supply, just like food, you can't lose this power supply is about 350 yuan, and the platform can also be changed The price gap of this thing is the performance gap.

If you want to use a very good graphics card for graphics and animation, if you want to use the N platform for office use, that's all.