What is the power supply and what it is eaten with. The power supply is a secondary source of power supply system that converts incoming network voltage - 220 V, to the required system: 3.3V, 5 V, etc. The power of this device is a key value for a PC, the stability and reliability of the system and reliability of the system depends on this. Failures for lack of power. Therefore, when buying or assembling the system is trying so that the BP indicators are in excess. Next, consider various cases when information about the power of BP may be needed.
How to calculate the required power supply power
Such a task can get up when buying a new PC or when buying individual components to the system. In this case, you can calculate the power yourself or use various Internet services. They will produce the necessary calculations themselves. You just need to enter data on the components of your system, such as: the core of the processor and its acceleration, the number of processors, the power of the cooler, the presence of optical and hard drives, the power of the motherboard, the memory slots, the video card model and its acceleration. As an example, you can use the resource (http://www.casemods.ru/services/raschet_bloka_pitalia.html) or any like. Calculations will be approximately the same.
After the data is entered, the system will give you the average and maximum power and based on this data should be chosen. As an example, we will make calculations for the intended system. Intel Core i5 3200MHz processor, 1 optical disc, 1 HDD, GeForce 8800 GTX video card, etc. As can be seen in the screenshot, the total capacity is 266 V, and peak 339 V.
How to find out the power of the installed power supply unit
The second case is when it is necessary to learn the power of the BP already installed with the system. Causes can be different: breakdown, block replacement or repair.
It would seem that the simplest way will be used by a special program that will give us all the necessary information about the components. But at the moment, oddly enough, there are no such programs. The only way is to look under the hood of the system unit. To do this, remove the side cover and look directly to the BP itself, which is in the upper back. It will be marked in the form of a sticker on which you can find the power of this BP, its model, etc.
What you should know about the power supply manufacturers
In conclusion I would like to say a few words about manufacturers. If you, let's say, have already identified the power of the BP that you need, then you have a question about what manufacturer choose and is there any difference between them? As it turned out, there is. All manufacturers, one way or another, overestimate real numbers, but less famous brands overestimates figures at 30 - 50%, which is quite a few and fraught with the consequences for the system. In turn, leading manufacturers overestimate numbers by 10 - 20%, which is also not particularly nice. However, the BP is trying to choose with a power reserve, so these 10 - 20% will not play much.
As it turned out, the power is not such a terrible thing, but do not think that buying a powerful BP you can forget about it for many years. The needs of the systems are growing every year, if not a month. Therefore, if you decide to update your iron, do not forget to provide it with a new and powerful power supply.
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Quote: "As can be seen in the screenshot, the total capacity is 266 V, and peak 339 V". Power measurement is not in V / V Volt Volta, and W Watt or W - watt / clock. Thanks!